Application Report ...

Size: px
Start display at page:

Download "Application Report ..."

Transcription

1 Application Report SNVA408B January 00 Revise April 03 AN-994 Moeling an Design of Current Moe Control Boost Converters... ABSTRACT This application note presents a etail moeling an esign of current moe control boost converters operating in the continuous conuction moe (CCM). Base on the erive small signal moels, the esign of a lag compensator for current moe control boost converters will be etaile. The LM3478 boost controller will be use in the example. Simulation an harware measurement of frequency responses will be shown. Contents Basic Operation of a Boost Converter... Moeling of an Open Loop Boost Converter... 3 Moeling of a Current Moe Control Boost Converter Principle of a Lag Compensator Illustrative Example Conclusion... 9 List of Figures An Open Loop Boost Converter... Inuctor Current Waveform at the On Perio Frequency Response of a Lag Compensator A Lag Compensator Implemente by a Transconuctance Amplifier Circuit Frequency Response of the Un-Compensate System Frequency Response of the Compensate System with 90 Phase Margin... 9 List of Tables Major Parameters of the Example Boost Converter... 7 Parameters of the LM All traemarks are the property of their respective owners. SNVA408B January 00 Revise April 03 AN-994 Moeling an Design of Current Moe Control Boost Converters

2 Basic Operation of a Boost Converter Basic Operation of a Boost Converter Figure. An Open Loop Boost Converter Figure shows an open loop boost converter with an inuctor, a ioe D, an output capacitor C OUT with an equivalent series resistance R COUT. It is assume that the loa is a resistor R OUT, an the switch Q is ieal. Let ν IN, ν OUT, an ν COUT be the input voltage, output voltage, an the voltage across C OUT, i L be the current through, an V D be the forwar voltage rop of D when D is turne on. Uner the CCM, when Q is turne on, the state equations are Q IN = t i L, Q OUT R OUT = -C OUT t Q COUT Also, the output equation is Q OUT = Q COUT + C OUT Q COUT R COUT t Similarly, when Q is turne off, the output equation of (3) still hols, while the state equations become Q IN = i + V D + Q t L OUT, Q OUT R OUT = i L - C OUT t Q COUT Moeling of an Open Loop Boost Converter To obtain a small signal moel of boost converters, it is require to apply the averaging technique, perturbation, an the linearization technique. First, by applying the averaging technique, the average state equations an output equation are Q IN = t i L + ( - )V D + ( - )Q OUT, Q OUT R = ( - ) i L - C OUT OUT t Q COUT, Q OUT = Q COUT + R COUT C OUT t x = X + x, Q COUT where is the uty cycle, x is the average variable for the variable x (which can represent ν IN, ν OUT, ν COUT, an i L ). Secon, by applying small signal perturbations to (6) to (8), i.e. let () () (3) (4) (5) (6) (7) (8) where X an x are nominal (DC) an perturbe (AC) variables, + Q IN = L (I L + i L ) + ( - D - )V D + ( - D - )(V OUT + Q OUT ), t (9) AN-994 Moeling an Design of Current Moe Control Boost Converters SNVA408B January 00 Revise April 03

3 Moeling of an Open Loop Boost Converter (V OUT +Q OUT ) = ( - D - )(I L + i L ) -COUT R OUT t V OUT +Q OUT = V COUT + Q COUT + R COUT C OUT t (V COUT + Q COUT ) = V D + V OUT (V COUT + Q COUT ), Thir, by applying the linearization technique (assume that the high orer non-linear terms are small an negligible), a set of DC an AC equations can be obtaine as follows: DC equations: From (9) (0) () Also V OUT - + V D D =. V OUT + V D V OUT = - V D. () For simplicity, consier that V D is small compare with,. V OUT = From (0), V OUT. I L = ROUT AC equations: From (9), v IN = s i L + Q OUT - V OUT s i L = v IN - Q OUT + V OUT From (0), Q OUT = i R L - I L - sc OUT Q COUT OUT From (), Q OUT = Q COUT + sr COUT C OUT Q COUT, Q OUT Q COUT =, + srcout C OUT Substitute (3), (4), (5), an (7) into (6), Q OUT = ( + sr COUT C OUT ) Q + ( + sr IN COUTC OUT ) V sl IN - R OUT + s R OUT + R COUTC OUT + s C OUT(R OUT + R COUT) R OUT (3) (4) (5) (6) (7) (8) SNVA408B January 00 Revise April 03 AN-994 Moeling an Design of Current Moe Control Boost Converters 3

4 Moeling of a Current Moe Control Boost Converter 3 Moeling of a Current Moe Control Boost Converter Uner current moe control, i L is fe back when Q is turne on to etermine the on-time of Q by comparing it to a current control signal i C. A compensation ramp of slope -m C is normally ae to avoi sub-harmonic oscillation. Figure shows the current waveform of an on perio. The average state equation is as follows: Figure. Inuctor Current Waveform at the On Perio where i L = i C - m C T SW - m TSW, m = Q IN is the slope of i L uring the on perio. By aing small signal perturbations to the above equation, T SW (M + m I L + i L = I C + i C - m C (D + )T SW - )(D + ). By applying the linearization technique (assume that the high orer non-linear terms are small an negligible), a set of DC an AC equations can be obtaine as follows: DC equation: where I L = I C - m C DT SW - T SW M D (9) (0) () () M = AC equation: Define i L = i C - m C T SW - T SW T M - SW Dm T SW T =, T SW T M = (m C + M ) From (0), (3), (4), (5), i L = i C - T M - DT Q IN. Substitute (3) into (5), s i L = Q IN - Q OUT +. (3) (4) (5) (6) (7) 4 AN-994 Moeling an Design of Current Moe Control Boost Converters SNVA408B January 00 Revise April 03

5 Moeling of a Current Moe Control Boost Converter Substitute (7) into (6), = Q OUT = s DT s i C + Q OUT - + Q IN. + st M By substituting (8) into (8), the small signal moel of the current moe control boost converter can be formulate as follows: where G NC (s)q IN + G IC (s)i C, '(s) G NC (s) = R OUT ( + sr COUT C OUT ) ^T M + R OUT - DT sdt + ` R OUT (8) (9) G IC (s) = R OUT ( + sr COUT C OUT ) - s R OUT '(s) = + R OUT T M ^ + s + R COUT R OUT C OUT T M + (R OUT + R COUT )C OUT + s C OUT (R OUT + R COUT )T M G IC (s) Q OUT = Q C, '(s)r SN If the current i L is sense by a resistor R SN connecting between Q an the groun, the current control signal i C can be converte to a voltage control signal ν C. The relationship between the output voltage an the voltage control signal can be formulate as follows: ` (30) SNVA408B January 00 Revise April 03 AN-994 Moeling an Design of Current Moe Control Boost Converters 5

6 Principle of a Lag Compensator 4 Principle of a Lag Compensator Figure 3. Frequency Response of a Lag Compensator A lag compensator consists of a pair of pole an zero at the frequency f PC an f ZC, with f PC < f ZC. It also provies a c gain A C. As shown in Figure 3, the lag compensator provies an attenuation in magnitue at the high frequency. The egree of attenuation is etermine by the istance between f PC an f ZC. It is because the magnitue is ecrease at a slope of 0B/ecae between f PC an f ZC. The lag compensator also provies a phase lag. However, f PC an f ZC can be place at a low frequency (much lower than the frequency of interest, for example, the cross over frequency f C ) such that the lag compensator nearly oes not affect the phase at the high frequency. The aim of esigning a lag compensator is to provie a esire phase margin for the compensate system. Starting from a boe plot of an un-compensate system, an a requirement of phase margin of Φ m, a new f C can be selecte at the frequency corresponing to 80 - Φ m of the un-compensate system. Then the magnitue of the un-compensate system at f C is foun. The magnitue at f C can be attenuate to 0B by the lag compensator through proper esign of f PC an f ZC. As a result, the compensate system will have a phase margin of Φ m, an the cross over frequency will be f C. An illustrative example (see Section 5) will be presente to show the esign steps. Figure 4. A Lag Compensator Implemente by a Transconuctance Amplifier Circuit A lag compensator can be implemente by a transconuctance amplifier, with an open loop gain of gm an an output impeance of R 0, connecting to a resistor R C an a capacitor C C in series to the groun, as shown in Figure 4. Let the negative input of the amplifier is connecte to a reference voltage V REF, an the positive input is connecte to the output voltage ν OUT through a resistor ivier network implemente by R F an R F, the transfer function relating ν C an ν OUT is R F Q C = Q OUT - V REF g m R F + R R 0 // R C + F SC C By aing small signal perturbations, the AC equation can be obtaine as follows: (3) Hence, R F a + sr C C C a Q C = g m R 0 Q OUT. R F + R F + s(r C + R 0 )C C (3) 6 AN-994 Moeling an Design of Current Moe Control Boost Converters SNVA408B January 00 Revise April 03

7 Illustrative Example R F A C = g m R 0, R F + R F f PC =, S(R C + R 0 )C C f ZC =. SR C C C (33) 5 Illustrative Example The esign of a current moe control Boost converter with a nominal input voltage of 5V an an output voltage of V an an output current of 0.5A will be shown. The major components are liste in Table. A current moe controller LM3478 will be use. The parameters of the LM3478, which can be erive from the ata sheet, are also liste in Table. Table. Major Parameters of the Example Boost Converter Parameter V OUT R OUT Value 5V V 4Ω 0 µh C OUT 50 µf R COUT 0.05Ω f SW 400 khz R SN 0.05Ω R SL 604Ω Table. Parameters of the LM3478 Parameter Value V REF.6V g m 800 µω - R 0 V SL A V /g m = 38/800 µω - = 47.5 kω 9 mv Other parameters of (30) are calculate below. From (3), D = From (4), T = T SW = f SW (34) T =.5 µs (35) The parameter m C is etermine by an internal compensation ramp V SL an an external compensation ramp etermine by an internal current of 40 µa passing through an external resistor R SL. It can be calculate by the following equation: m C = (V SL + 40 µa x R SL )f SW /R SN = 9980As - (36) From (5), T M = T SW =.948A m C + (37) SNVA408B January 00 Revise April 03 AN-994 Moeling an Design of Current Moe Control Boost Converters 7

8 Illustrative Example Hence, all parameters of (30) are obtaine. A boe plot of (30) with the above parameters is shown in Figure 5. The DC gain, zeros, an poles are DC gain: 36.39B (38) Zeros: 53 khz, 66 khz (right half plane zero) (39) Poles: 33 Hz, 65 khz (40) Figure 5. Frequency Response of the Un-Compensate System The esign of the lag compensator can be achieve by following (3). Since V OUT an V REF are V an.6v respectively, we can esign that R F = 84.5 kω (4) R F = 0 kω (4) From (3), R F A C = g m R 0 R F + R F = 4.0 =.09 B (43) In this example, a compensate system with a phase margin of aroun 90 is esire. From Figure 5, f C can be selecte as 3.5kHz (the frequency at which the phase is aroun = 90 ). The attenuation require is 7B + A C = 9.09B, which implies that the istance between f PC an f ZC shoul be 0.96 ecae. Select f ZC to be 350 Hz, i.e. one ecae lower than f C, then f PC shoul be 38.3 Hz. /R C C C = π x 350 Hz (44) (R C + R 0 )C C = S x 38.3 Hz R 0 C C = S x 38.3 Hz - R C C C C = 78 nf R C = 5.85 k: (45) 8 AN-994 Moeling an Design of Current Moe Control Boost Converters SNVA408B January 00 Revise April 03

9 Conclusion Figure 6. Frequency Response of the Compensate System with 90 Phase Margin Finally, select R C = 5.9 kω an C C = 00 nf. The frequency response of the compensate system is shown in Figure 6. It can be foun that the 0B point is at aroun 4 khz, an the phase margin is aroun Conclusion This application note etails the moeling of an open loop an a current moe control boost converter uner the continuous conuction moe. The principle an esign of a lag compensator have also been aresse. An example has been presente to illustrate the esign. A lag compensator has been esigne for a compensate system with aroun 90 phase margin. The selection of a esire phase margin affects the transient response of the output voltage. Moreover, some practical systems are suffere from noise, an transient responses are not a major concern. A lower cross over frequency may be require. In this case, the application of the ominant pole compensation metho may be more appropriate. The lag compensator can be easily change to a compensator with a ominant pole by setting R C to zero, that is, to eliminate the zero. Application engineers are suggeste to esign properly base on practical situations. SNVA408B January 00 Revise April 03 AN-994 Moeling an Design of Current Moe Control Boost Converters 9

10 IMPORTANT NOTICE Texas Instruments Incorporate an its subsiiaries (TI) reserve the right to make corrections, enhancements, improvements an other changes to its semiconuctor proucts an services per JESD46, latest issue, an to iscontinue any prouct or service per JESD48, latest issue. Buyers shoul obtain the latest relevant information before placing orers an shoul verify that such information is current an complete. All semiconuctor proucts (also referre to herein as components ) are sol subject to TI s terms an conitions of sale supplie at the time of orer acknowlegment. TI warrants performance of its components to the specifications applicable at the time of sale, in accorance with the warranty in TI s terms an conitions of sale of semiconuctor proucts. Testing an other quality control techniques are use to the extent TI eems necessary to support this warranty. Except where manate by applicable law, testing of all parameters of each component is not necessarily performe. TI assumes no liability for applications assistance or the esign of Buyers proucts. Buyers are responsible for their proucts an applications using TI components. To minimize the risks associate with Buyers proucts an applications, Buyers shoul provie aequate esign an operating safeguars. TI oes not warrant or represent that any license, either express or implie, is grante uner any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are use. Information publishe by TI regaring thir-party proucts or services oes not constitute a license to use such proucts or services or a warranty or enorsement thereof. Use of such information may require a license from a thir party uner the patents or other intellectual property of the thir party, or a license from TI uner the patents or other intellectual property of TI. Reprouction of significant portions of TI information in TI ata books or ata sheets is permissible only if reprouction is without alteration an is accompanie by all associate warranties, conitions, limitations, an notices. TI is not responsible or liable for such altere ocumentation. Information of thir parties may be subject to aitional restrictions. Resale of TI components or services with statements ifferent from or beyon the parameters state by TI for that component or service vois all express an any implie warranties for the associate TI component or service an is an unfair an eceptive business practice. TI is not responsible or liable for any such statements. Buyer acknowleges an agrees that it is solely responsible for compliance with all legal, regulatory an safety-relate requirements concerning its proucts, an any use of TI components in its applications, notwithstaning any applications-relate information or support that may be provie by TI. Buyer represents an agrees that it has all the necessary expertise to create an implement safeguars which anticipate angerous consequences of failures, monitor failures an their consequences, lessen the likelihoo of failures that might cause harm an take appropriate remeial actions. Buyer will fully inemnify TI an its representatives against any amages arising out of the use of any TI components in safety-critical applications. In some cases, TI components may be promote specifically to facilitate safety-relate applications. With such components, TI s goal is to help enable customers to esign an create their own en-prouct solutions that meet applicable functional safety stanars an requirements. Nonetheless, such components are subject to these terms. No TI components are authorize for use in FDA Class III (or similar life-critical meical equipment) unless authorize officers of the parties have execute a special agreement specifically governing such use. Only those TI components which TI has specifically esignate as military grae or enhance plastic are esigne an intene for use in military/aerospace applications or environments. Buyer acknowleges an agrees that any military or aerospace use of TI components which have not been so esignate is solely at the Buyer's risk, an that Buyer is solely responsible for compliance with all legal an regulatory requirements in connection with such use. TI has specifically esignate certain components as meeting ISO/TS6949 requirements, mainly for automotive use. In any case of use of non-esignate proucts, TI will not be responsible for any failure to meet ISO/TS6949. Proucts Applications Auio Automotive an Transportation Amplifiers amplifier.ti.com Communications an Telecom Data Converters ataconverter.ti.com Computers an Peripherals DLP Proucts Consumer Electronics DSP sp.ti.com Energy an Lighting Clocks an Timers Inustrial Interface interface.ti.com Meical Logic logic.ti.com Security Power Mgmt power.ti.com Space, Avionics an Defense Microcontrollers microcontroller.ti.com Vieo an Imaging RFID OMAP Applications Processors TI EE Community ee.ti.com Wireless Connectivity Mailing Aress: Texas Instruments, Post Office Box , Dallas, Texas 7565 Copyright 03, Texas Instruments Incorporate

AMC1100: Replacement of Input Main Sensing Transformer in Inverters with Isolated Amplifier

AMC1100: Replacement of Input Main Sensing Transformer in Inverters with Isolated Amplifier Application Report SLAA552 August 2012 AMC1100: Replacement of Input Main Sensing Transformer in Inverters with Isolated Amplifier Ambreesh Tripathi and Harmeet Singh Analog/Digital Converters ABSTRACT

More information

LM5030 LM5030 Application: DC - DC Converter Utilizing the Push-Pull Topology

LM5030 LM5030 Application: DC - DC Converter Utilizing the Push-Pull Topology LM5030 LM5030 Application: DC - DC Converter Utilizing the Push-Pull Topology Literature Number: SNVA553 LM5030 Application DC DC Converter Utilizing the Push-Pull Topology 1 Push-Pull Topology D1 L +

More information

Application Note AN107

Application Note AN107 Murata Balun for CC253x and CC254x LFB182G45BG2D280 By Fredrik Kervel Keywords Balun LFB182G45BG2D280 CC253x CC254x CC257x CC85xx 1 Introduction Murata s LFB182G45BG2D280 integrated balun is specially

More information

LM556 LM556 Dual Timer

LM556 LM556 Dual Timer LM556 LM556 Dual Timer Literature Number: SNAS549 LM556 Dual Timer General Description The LM556 Dual timing circuit is a highly stable controller capable of producing accurate time delays or oscillation.

More information

Providing Continuous Gate Drive Using a Charge Pump

Providing Continuous Gate Drive Using a Charge Pump Application Report Philip Meyer and John Tucker... Power Management Products ABSTRACT Certain applications require that output voltage regulation be maintained when the input voltage is only slightly higher

More information

AN-1733 Load Transient Testing Simplified

AN-1733 Load Transient Testing Simplified Application Report... ABSTRACT The load transient test may be the simplest diagnostic tool available to instantly analyze the loop stability of a system: the visual appearance of the output voltage as

More information

Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial

Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial Application Report SLAA672 July 2015 Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial Sanjay Pithadia, N. Navaneeth Kumar ABSTRACT This application report explains different parameters

More information

Data sheet acquired from Harris Semiconductor SCHS078C -- Revised October 2003

Data sheet acquired from Harris Semiconductor SCHS078C -- Revised October 2003 Data sheet acquired from Harris Semiconductor SCHS078C -- Revised October 2003 The CD4521B types are supplied in 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96,

More information

LM709 LM709 Operational Amplifier

LM709 LM709 Operational Amplifier LM709 LM709 Operational Amplifier Literature Number: SNOS659A LM709 Operational Amplifier General Description The LM709 series is a monolithic operational amplifier intended for general-purpose applications

More information

AN-225 IC Temperature Sensor Provides Thermocouple Cold-Junction

AN-225 IC Temperature Sensor Provides Thermocouple Cold-Junction Application Report AN-225 IC Temperature Sensor Provides Thermocouple Cold-Junction... ABSTRACT Two circuits using the LM335 for thermocouple cold-junction compensation have been described. With a single

More information

Ultrasonic Sensing Basics for Liquid Level Sensing, Flow Sensing, and Fluid

Ultrasonic Sensing Basics for Liquid Level Sensing, Flow Sensing, and Fluid Application Report SNAA0A March 015 Revised June 015 Ultrasonic Sensing Basics for Liquid Level Sensing, Flow Sensing, and Fluid AmyLe ABSTRACT The need for accurate and reliable sensors is growing in

More information

LM388 LM388 1.5W Audio Power Amplifier

LM388 LM388 1.5W Audio Power Amplifier LM388 LM388 1.5W Audio Power Amplifier Literature Number: SNOSBT8A LM388 1 5W Audio Power Amplifier General Description The LM388 is an audio amplifier designed for use in medium power consumer applications

More information

AN-311 Theory and Applications of Logarithmic Amplifiers

AN-311 Theory and Applications of Logarithmic Amplifiers Application Report... ABSTRACT A number of instrumentation applications can benefit from the use of logarithmic or exponential signal processing techniques. The design and use of logarithmic/exponential

More information

54LS174,54LS175,DM54LS174,DM54LS175, DM74LS174,DM74LS175

54LS174,54LS175,DM54LS174,DM54LS175, DM74LS174,DM74LS175 54LS174,54LS175,DM54LS174,DM54LS175, DM74LS174,DM74LS175 54LS174 DM54LS174 DM74LS174 54LS175 DM54LS175 DM74LS175 Hex/Quad D Flip-Flops with Clear Literature Number: SNOS290A 54LS174 DM54LS174 DM74LS174

More information

Texas Instruments. FB PS LLC Test Report HVPS SYSTEM AND APPLICATION TEAM REVA

Texas Instruments. FB PS LLC Test Report HVPS SYSTEM AND APPLICATION TEAM REVA Texas Instruments FB PS LLC Test Report HVPS SYSTEM AND APPLICATION TEAM REVA 12/05/2014 1 General 1.1 PURPOSE Provide the detailed data for evaluating and verifying the FB-PS-LLC. The FB-PS-LLC is a Full

More information

Design Note DN304. Cebal CCxxxx Development Tools USB Driver Installation Guide By Åsmund B. Bø. Keywords. 1 Introduction

Design Note DN304. Cebal CCxxxx Development Tools USB Driver Installation Guide By Åsmund B. Bø. Keywords. 1 Introduction Cebal CCxxxx Development Tools USB Driver Installation Guide By Åsmund B. Bø Keywords Cebal Driver Windows x86 Windows x64 SmartRF Studio SmartRF Packet Sniffer SmartRF Flash Programmer SmartRF05EB SmartRF04EB

More information

Wireless Subwoofer TI Design Tests

Wireless Subwoofer TI Design Tests Wireless Subwoofer TI Design Tests This system design was tested for THD+N vs. frequency at 5 watts and 30 watts and THD+N vs. power at 00. Both the direct analog input and the wireless systems were tested.

More information

Importing a SPICE NetList Into TINA9-TI

Importing a SPICE NetList Into TINA9-TI Application Report Importing a SPICE NetList into TINA9-TI John Miller... Analog elab ABSTRACT This application note describes the procedure for importing an unencrypted SPICE netlist into TINA9-TI (available

More information

AN-1900 LM3150 Evaluation Boards

AN-1900 LM3150 Evaluation Boards User's Guide 1 Introduction The LM3150 evaluation boards are designed to provide the design engineer with a fully functional power converter based on Constant On-Time with Emulated Ripple mode control

More information

DC/DC LED Lighting Developer s Kit Hardware

DC/DC LED Lighting Developer s Kit Hardware Reference Guide The DC/DC LED lighting developer s kit provides a great way to learn and experiment by using a single MCU to accurately control a series of LED strings and efficiently control the power

More information

AN-1963 IEEE 1588 Synchronization Over Standard Networks Using the

AN-1963 IEEE 1588 Synchronization Over Standard Networks Using the Application Report AN-963 IEEE 588 Synchronization Over Standard Networks Using the... ABSTRACT This application report describes a method of synchronization that provides much more accurate synchronization

More information

Application Report. 1 Description of the Problem. Jeff Falin... PMP Portable Power Applications ABSTRACT

Application Report. 1 Description of the Problem. Jeff Falin... PMP Portable Power Applications ABSTRACT Application Report SLVA255 September 2006 Minimizing Ringing at the Switch Node of a Boost Converter Jeff Falin... PMP Portable Power Applications ABSTRACT This application report explains how to use proper

More information

Multi-Transformer LED TV Power User Guide. Anderson Hsiao

Multi-Transformer LED TV Power User Guide. Anderson Hsiao Multi-Transformer LED TV Power User Guide Anderson Hsiao Operation Range Input Range: 90Vac~264Vac 47Hz~63Hz Dimming Range: Reverse Signal 0V ~ 5V 100Hz ~200Hz 1%~100% Output Range :STBY-5V 20mA~1A 5V

More information

LM138,LM338. LM138/LM338 5-Amp Adjustable Regulators. Literature Number: SNVS771A

LM138,LM338. LM138/LM338 5-Amp Adjustable Regulators. Literature Number: SNVS771A LM138,LM338 LM138/LM338 5-Amp Adjustable Regulators Literature Number: SNVS771A LM138/LM338 5-Amp Adjustable Regulators General Description The LM138 series of adjustable 3-terminal positive voltage regulators

More information

DS8907 DS8907 AM/FM Digital Phase-Locked Loop Frequency Synthesizer

DS8907 DS8907 AM/FM Digital Phase-Locked Loop Frequency Synthesizer DS8907 DS8907 AM/FM Digital Phase-Locked Loop Frequency Synthesizer Literature Number: SNOSBR1A DS8907 AM FM Digital Phase-Locked Loop Frequency Synthesizer General Description The DS8907 is a PLL synthesizer

More information

LM1851 LM1851 Ground Fault Interrupter

LM1851 LM1851 Ground Fault Interrupter LM1851 LM1851 Ground Fault Interrupter Literature Number: SNIS158 LM1851 Ground Fault Interrupter General Description The LM1851 is designed to provide ground fault protection for AC power outlets in consumer

More information

Design Note DN041. Using CC253X or CC254X with Dipole PCB Antennas. Keywords. 1 Introduction. By Espen Wium CC2530 CC2531 CC2533 CC2540 CC2541

Design Note DN041. Using CC253X or CC254X with Dipole PCB Antennas. Keywords. 1 Introduction. By Espen Wium CC2530 CC2531 CC2533 CC2540 CC2541 Using CC253X or CC254X with Dipole PCB Antennas By Espen Wium Keywords Half wave dipole RF Antenna Efficiency Gain TRP (Total Radiated Power) CC2530 CC2531 CC2533 CC2540 CC2541 1 Introduction Many RFICs

More information

SDLS940A MARCH 1974 REVISED MARCH 1988. Copyright 1988, Texas Instruments Incorporated

SDLS940A MARCH 1974 REVISED MARCH 1988. Copyright 1988, Texas Instruments Incorporated SN5490A, SN5492A, SN5493A, SN54LS90, SN54LS92, SN54LS93 SN7490A, SN7492A, SN7493A, SN74LS90, SN74LS92, SN74LS93 DECADE, DIVIDE-BY-TWELVE AND BINARY COUNTERS SDLS940A MARCH 1974 REVISED MARCH 1988 PRODUCTION

More information

TL081 TL081 Wide Bandwidth JFET Input Operational Amplifier

TL081 TL081 Wide Bandwidth JFET Input Operational Amplifier TL081 TL081 Wide Bandwidth JFET Input Operational Amplifier Literature Number: SNOSBW6A TL081 Wide Bandwidth JFET Input Operational Amplifier General Description The TL081 is a low cost high speed JFET

More information

Calculating Gain for Audio Amplifiers

Calculating Gain for Audio Amplifiers Application eport SLOA105A October 003 evised September 005 Calculating Gain for Audio Amplifiers Audio Power Amplifiers ABSTACT This application report explains the different types of audio power amplifier

More information

APPLICATION NOTE BUILDING A QAM MODULATOR USING A GC2011 DIGITAL FILTER CHIP

APPLICATION NOTE BUILDING A QAM MODULATOR USING A GC2011 DIGITAL FILTER CHIP SLWA022 APPLICATION NOTE BUILDING A QAM MODULATOR USING A GC2011 DIGITAL CHIP October 6, 1994 1.0 INTRODUCTION This report describes how one can use the GC2011 Digital Filter chip to build digital modulators

More information

with Ultra-Fast Transient Response and High Light-Load Efficiency

with Ultra-Fast Transient Response and High Light-Load Efficiency 1 Adaptor 6-24V Optional N-FET Driver Ultra-Fast DPM Simplified Application Diagram Iin Ultra-Low Quiescent Current Enhanced Safety Features OCP, OVP, FET Short Support CPU Turbo Mode To System bq24715

More information

LMS8117A LMS8117A 1A Low-Dropout Linear Regulator

LMS8117A LMS8117A 1A Low-Dropout Linear Regulator LMS8117A LMS8117A 1A Low-Dropout Linear Regulator Literature Number: SNOS487E LMS8117A 1A Low-Dropout Linear Regulator General Description The LMS8117A is a series of low dropout voltage regulators with

More information

SDLS068A DECEMBER 1972 REVISED OCTOBER 2001. Copyright 2001, Texas Instruments Incorporated

SDLS068A DECEMBER 1972 REVISED OCTOBER 2001. Copyright 2001, Texas Instruments Incorporated SN54174, SN54175, SN54LS174, SN54LS175, SN54S174, SN54S175, SN74174, SN74175, SN74LS174, SN74LS175, SN74S174, SN74S175 PRODUCTION DATA information is current as of publication date. Products conform to

More information

TI Designs Precision: Verified Design Comparator with Hysteresis Reference Design

TI Designs Precision: Verified Design Comparator with Hysteresis Reference Design TI Designs Precision: Verified Design Comparator with Hysteresis Reference Design Art Kay, Timothy Claycomb TI Designs Precision TI Designs Precision are analog solutions created by TI s analog experts.

More information

AN-1405 DP83848 Single 10/100 Mb/s Ethernet Transceiver Reduced Media Independent Interface (RMII ) Mode

AN-1405 DP83848 Single 10/100 Mb/s Ethernet Transceiver Reduced Media Independent Interface (RMII ) Mode Application Report SNLA076A October 2005 Revised April 2013 AN-1405 DP83848 Single 10/100 Mb/s Ethernet Transceiver Reduced Media... ABSTRACT This application report summarizes how a designer can take

More information

Lecture 21: Junction Field Effect Transistors. Source Follower Amplifier

Lecture 21: Junction Field Effect Transistors. Source Follower Amplifier Whites, EE 322 Lecture 21 Page 1 of 8 Lecture 21: Junction Fiel Effect Transistors. Source Follower Amplifier As mentione in Lecture 16, there are two major families of transistors. We ve worke with BJTs

More information

Designing Gain and Offset in Thirty Seconds

Designing Gain and Offset in Thirty Seconds Application Report SLOA097 February 2002 Designing Gain and Offset in Thirty Seconds Bruce Carter High Performance Linear ABSTRACT This document discusses how to design an operational amplifier (op amp)

More information

Design Note DN004. Folded Dipole Antenna for CC25xx By Audun Andersen. Keywords. 1 Introduction CC2500 CC2550 CC2510 CC2511

Design Note DN004. Folded Dipole Antenna for CC25xx By Audun Andersen. Keywords. 1 Introduction CC2500 CC2550 CC2510 CC2511 Folded Dipole Antenna for CC25xx By Audun Andersen Keywords CC2500 CC2550 CC2510 CC2511 Folded Dipole PCB Antenna 2.4 GHz 1 Introduction This document describes a folded dipole PCB antenna design that

More information

Choosing Inductors and Capacitors for DC/DC Converters

Choosing Inductors and Capacitors for DC/DC Converters Application Report SLVA157 February 2004 Choosing Inductors and Capacitors for DC/DC Converters Christophe Vaucourt ABSTRACT Wireless handsets, PDAs, and other portable electronic devices continue to shrink

More information

µa7800 SERIES POSITIVE-VOLTAGE REGULATORS

µa7800 SERIES POSITIVE-VOLTAGE REGULATORS SLS056J MAY 976 REISED MAY 2003 3-Terminal Regulators Output Current up to.5 A Internal Thermal-Overload Protection High Power-Dissipation Capability Internal Short-Circuit Current Limiting Output Transistor

More information

Evaluating the complex configuration options of the Texas Instruments advanced fuel gauges can be

Evaluating the complex configuration options of the Texas Instruments advanced fuel gauges can be User's Guide SLUU307A March 2008 Revised April 2008 bqeasy for Single Cell Impedance Track Devices Texas Instruments advanced fuel gauges, that employ the Impedance Track algorithm, offer an unmatched

More information

Thumbus2300. User's Guide. 1 Introduction. 1.1 Features. 1.2 Kit Contents

Thumbus2300. User's Guide. 1 Introduction. 1.1 Features. 1.2 Kit Contents User's Guide SLUU399A April 2010 Revised March 2011 Thumbus2300 This users guide describes the function and operation of the Thumbus2300 evaluation module. A complete description, as well as schematic

More information

Application Report. 1 Introduction. 2 Resolution of an A-D Converter. 2.1 Signal-to-Noise Ratio (SNR) Harman Grewal... ABSTRACT

Application Report. 1 Introduction. 2 Resolution of an A-D Converter. 2.1 Signal-to-Noise Ratio (SNR) Harman Grewal... ABSTRACT Application Report SLAA323 JULY 2006 Oversampling the ADC12 for Higher Resolution Harman Grewal... ABSTRACT This application report describes the theory of oversampling to achieve resolutions greater than

More information

Data sheet acquired from Harris Semiconductor SCHS049C Revised October 2003

Data sheet acquired from Harris Semiconductor SCHS049C Revised October 2003 Data sheet acquired from Harris Semiconductor SCHS049C Revised October 2003 CD4060B consists of an oscillator section and 14 ripple-carry binary counter stages. The oscillator configuration allows design

More information

LM5025,LM5026,LM5034 Operation and Benefits of Active-Clamp Forward Power Converters

LM5025,LM5026,LM5034 Operation and Benefits of Active-Clamp Forward Power Converters LM5025,LM5026,LM5034 Operation and Benefits of Active-Clamp Forward Power Converters Literature Number: SNVA591 POWER designer Expert tips, tricks, and techniques for powerful designs No. 108 Feature Article...1-7

More information

RF37S114 Tag-it HF-I Type 5 NFC, ISO/IEC 15693 Transponder, 4 mm 4 mm

RF37S114 Tag-it HF-I Type 5 NFC, ISO/IEC 15693 Transponder, 4 mm 4 mm 1 1 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community RF37S114 SCBS907 NOVEMBER 2015 RF37S114 Tag-it HF-I Type 5 NFC, ISO/IEC 15693 Transponder, 4 mm 4 mm 1 Device Overview

More information

CD4071B Quad 2-Input OR Gate CD4072B Dual 4-Input OR Gate CD4075B Triple 3-Input OR Gate

CD4071B Quad 2-Input OR Gate CD4072B Dual 4-Input OR Gate CD4075B Triple 3-Input OR Gate Data sheet acquired from Harris Semiconductor SCHS056D Revised August 2003 CD4071B Quad 2-Input OR Gate CD4072B Dual 4-Input OR Gate CD4075B Triple 3-Input OR Gate CD4071B, CD4072B, and CD4075B OR gates

More information

AN-1862 Reducing Radiated Emissions in Ethernet 10/100 LAN Applications

AN-1862 Reducing Radiated Emissions in Ethernet 10/100 LAN Applications Application Report AN-1862 Reducing Radiated Emissions in Ethernet 10/100 LAN Applications... ABSTRACT This application report explains how Texas Instruments' PHYTER products help system designers to reduce

More information

AN-1826 Extending the Reach of a FPD-Link II Interface With Cable Drivers and Equalizers

AN-1826 Extending the Reach of a FPD-Link II Interface With Cable Drivers and Equalizers Application Report SNLA103A March 2008 Revised April 2013 AN-1826 Extending the Reach of a FPD-Link II Interface With Cable Drivers... ABSTRACT TI's family of embedded clock LVDS SER/DES (FPD-link II)

More information

August 2001 PMP Low Power SLVU051

August 2001 PMP Low Power SLVU051 User s Guide August 2001 PMP Low Power SLVU051 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service

More information

White Paper on Decision of Make vs. Buy of ISM RF Module Written by Bruce Ulrich October 2006

White Paper on Decision of Make vs. Buy of ISM RF Module Written by Bruce Ulrich October 2006 White Paper on Decision of Make vs. Buy of ISM RF Module Written by Bruce Ulrich October 2006 Abstract As companies implement wireless features into their portfolio, they may require new expertise to their

More information

Pressure Transducer to ADC Application

Pressure Transducer to ADC Application Application Report SLOA05 October 2000 Pressure Transducer to ADC Application John Bishop ABSTRACT Advanced Analog Products/OpAmp Applications A range of bridgetype transducers can measure numerous process

More information

Latch-Up. White Paper SCAA124 April 2015. Marty Johnson, Roger Cline, Scott Ward, Joe Schichl

Latch-Up. White Paper SCAA124 April 2015. Marty Johnson, Roger Cline, Scott Ward, Joe Schichl White Paper Marty Johnson, Roger Cline, Scott Ward, Joe Schichl ABSTRACT This document describes and discusses the topic of CMOS ranging from theory to testing of products. The recently proposed modifications

More information

6 Output With 1 kω in Series Between the Output and Analyzer... 7 7 Output With RC Low-Pass Filter (1 kω and 4.7 nf) in Series Between the Output

6 Output With 1 kω in Series Between the Output and Analyzer... 7 7 Output With RC Low-Pass Filter (1 kω and 4.7 nf) in Series Between the Output Application Report SLAA313 December 26 Out-of-Band Noise Measurement Issues for Audio Codecs Greg Hupp... Data Acquisition Products ABSTRACT This report discusses the phenomenon of out-of-band noise, and

More information

LM2900,LM3301,LM3900. LM2900/LM3900/LM3301 Quad Amplifiers. Literature Number: SNOSBV6

LM2900,LM3301,LM3900. LM2900/LM3900/LM3301 Quad Amplifiers. Literature Number: SNOSBV6 LM2900,LM3301,LM3900 LM2900/LM3900/LM3301 Quad Amplifiers Literature Number: SNOSBV6 LM2900/LM3900/LM3301 Quad Amplifiers General Description The LM2900 series consists of four independent, dual input,

More information

Data sheet acquired from Harris Semiconductor SCHS067B Revised July 2003

Data sheet acquired from Harris Semiconductor SCHS067B Revised July 2003 Data sheet acquired from Harris Semiconductor SCHS067B Revised July 2003 The CD4502B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages

More information

MM58274C MM58274C Microprocessor Compatible Real Time Clock

MM58274C MM58274C Microprocessor Compatible Real Time Clock MM58274C MM58274C Microprocessor Compatible Real Time Clock Literature Number: SNOS618A MM58274C Microprocessor Compatible Real Time Clock General Description The MM58274C is fabricated using low threshold

More information

Data sheet acquired from Harris Semiconductor SCHS087D Revised October 2003

Data sheet acquired from Harris Semiconductor SCHS087D Revised October 2003 Data sheet acquired from Harris Semiconductor SCHS087D Revised October 2003 The CD4555B and CD4556B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line

More information

HF Antenna Cookbook. Technical Application Report. 11-08-26-001 March 2001. Radio Frequency Identification Systems

HF Antenna Cookbook. Technical Application Report. 11-08-26-001 March 2001. Radio Frequency Identification Systems HF Antenna Cookbook Technical Application Report 11-08-26-001 March 2001 Radio Frequency Identification Systems Contents Edition One March 2001... i About this Manual... ii Conventions... ii If You Need

More information

TI and ibiquity Introduce Industry s Lowest Cost Single-Chip AM/FM and HD Radio Baseband John Gardner Digital Radio Marketing Manager

TI and ibiquity Introduce Industry s Lowest Cost Single-Chip AM/FM and HD Radio Baseband John Gardner Digital Radio Marketing Manager TI and ibiquity Introduce Industry s Lowest Cost Single-Chip AM/FM and HD Radio Baseband John Gardner Digital Radio Marketing Manager SPRT328 HD Radio Products Planned Trunk mounted HD Radio receiver at

More information

How To Close The Loop On A Fully Differential Op Amp

How To Close The Loop On A Fully Differential Op Amp Application Report SLOA099 - May 2002 Fully Differential Op Amps Made Easy Bruce Carter High Performance Linear ABSTRACT Fully differential op amps may be unfamiliar to some designers. This application

More information

LM3444 MR16 Boost Reference Design for Non-Dimming & Dimming LED Applications

LM3444 MR16 Boost Reference Design for Non-Dimming & Dimming LED Applications Reference Design Lighting Power Products Longmont Design Center LM3444 MR16 Boost Reference Design for Non-Dimming & Dimming LED Applications Feb 13, 2012 Revision 3.0 NATIONAL SEMICONDUCTOR Page 1 of

More information

Audio Tone Control Using The TLC074 Operational Amplifier

Audio Tone Control Using The TLC074 Operational Amplifier Application Report SLOA42 - JANUARY Audio Tone Control Using The TLC74 Operational Amplifier Dee Harris Mixed-Signal Products ABSTRACT This application report describes the design and function of a stereo

More information

ZigBee Sensor Monitor SWRU157D 2008 Low-Power RF

ZigBee Sensor Monitor SWRU157D 2008 Low-Power RF s e r ' s G u i d e User's Guide ZigBee Sensor Monitor SWRU157D 2008 Low-Power RF Contents ZIGBEE SENSOR MONITOR... 1 1. INTRODUCTION... 2 1.1. CC2530ZDK... 2 1.2. EZ430-RF2480... 2 2. INSTALLATION...

More information

Application Report SLVA051

Application Report SLVA051 Application Report November 998 Mixed-Signal Products SLVA05 ltage Feedback Vs Current Feedback Op Amps Application Report James Karki Literature Number: SLVA05 November 998 Printed on Recycled Paper IMPORTANT

More information

Design Considerations for LM5113 Advanced GaN FET Driver During High-

Design Considerations for LM5113 Advanced GaN FET Driver During High- Application Report Design Considerations for LM5113 Advanced GaN FET Driver During High- Narendra Mehta ABSTRACT The LM5113 device is designed to drive the high-side and low-side enhancement mode Gallium

More information

ORDERING INFORMATION. TOP-SIDE MARKING PDIP N Tube SN74LS07N SN74LS07N PACKAGE. SOIC D Tape and reel SN74LS07DR

ORDERING INFORMATION. TOP-SIDE MARKING PDIP N Tube SN74LS07N SN74LS07N PACKAGE. SOIC D Tape and reel SN74LS07DR The SN54LS07 and SN74LS17 are obsolete and are no longer supplied. Convert TTL Voltage Levels to MOS Levels High Sink-Current Capability Input Clamping Diodes Simplify System Design Open-Collector Driver

More information

Filter Design in Thirty Seconds

Filter Design in Thirty Seconds Application Report SLOA093 December 2001 Filter Design in Thirty Seconds Bruce Carter High Performance Analog ABSTRACT Need a filter fast? No theory, very little math just working filter designs, and in

More information

800VA Pure Sine Wave Inverter s Reference Design

800VA Pure Sine Wave Inverter s Reference Design Application Report SLAA602 June 2013 800VA Pure Sine Wave Inverter s Reference Design Sanjay Dixit, Ambreesh Tripathi, Vikas Chola High Performance Isolated Power ABSTRACT This application note describes

More information

Data sheet acquired from Harris Semiconductor SCHS020C Revised October 2003

Data sheet acquired from Harris Semiconductor SCHS020C Revised October 2003 Data sheet acquired from Harris Semiconductor SCHS020C Revised October 2003 The CD4009UB and CD4010B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line

More information

Optical Implementation Using IEEE-1394.b

Optical Implementation Using IEEE-1394.b Application Report SGZA001A - March 2004 Optical Implementation Using IEEE-1394.b David Rekieta IEEE-1394 Products ABSTRACT IEEE Std 1394b-2002 specification allows the use of optical media for longer

More information

THE RIGHT-HALF-PLANE ZERO --A SIMPLIFIED EXPLANATION

THE RIGHT-HALF-PLANE ZERO --A SIMPLIFIED EXPLANATION THE RGHT-HALF-PLANE ZERO --A SMPLFED EXPLANATON n small signal loop analysis, poles and zeros are normally located in the left half of the complex s-plane. The Bode plot of a conventional or lefthalf-plane

More information

PACKAGE OPTION ADDENDUM

PACKAGE OPTION ADDENDUM PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish (6) MSL Peak Temp (3) Op Temp

More information

Current-Transformer Phase-Shift Compensation and Calibration

Current-Transformer Phase-Shift Compensation and Calibration Application Report SLAA122 February 2001 Current-Transformer Phase-Shift Compensation and Calibration Kes Tam Mixed Signal Products ABSTRACT This application report demonstrates a digital technique to

More information

LM3203,LM3204,LM3205 Optimizing RF Power Amplifier System Efficiency Using DC-DC Converters

LM3203,LM3204,LM3205 Optimizing RF Power Amplifier System Efficiency Using DC-DC Converters LM3203,LM3204,LM3205 Optimizing RF Power Amplifier System Efficiency Using DC-DC Converters Literature Number: SNVA593 POWER designer Expert tips, tricks, and techniques for powerful designs No. 110 Feature

More information

TVP5146 SCART and OSD

TVP5146 SCART and OSD Application Report SLEA016 - October 2003 TVP5146 SCART and OSD HPA Digital Audio Video ABSTRACT The TVP5146 video decoder provides support for a SCART interface, which is commonly used in the European

More information

Theory of Operation. Figure 1 illustrates a fan motor circuit used in an automobile application. The TPIC2101. 27.4 kω AREF.

Theory of Operation. Figure 1 illustrates a fan motor circuit used in an automobile application. The TPIC2101. 27.4 kω AREF. In many applications, a key design goal is to minimize variations in power delivered to a load as the supply voltage varies. This application brief describes a simple DC brush motor control circuit using

More information

AN-1651 Keeping Up with the Expanding Demands of High-Performance

AN-1651 Keeping Up with the Expanding Demands of High-Performance Application Report AN-1651 Keeping Up with the Expanding Demands of High-Performance... ABSTRACT This application report provides several design examples of high-performance applications using the /LM4562

More information

An introduction to MSP430 microcontroller-based temperature-sensing solutions

An introduction to MSP430 microcontroller-based temperature-sensing solutions WHITE PAPER Dave Smith, MSP430 product marketing engineer Texas Instruments An introduction to MSP430 microcontroller-based temperature-sensing solutions Introduction As the world grows ever smarter, the

More information

Using C to Access Data Stored in Program Memory on the TMS320C54x DSP

Using C to Access Data Stored in Program Memory on the TMS320C54x DSP Application Report SPRA177A August 2005 Using C to Access Data Stored in Program Memory on the TMS320C54x DSP David M. Alter DSP Applications - Semiconductor Group ABSTRACT Efficient utilization of available

More information

TN0024 Technical note

TN0024 Technical note TN004 Technical note Power supply HOLD-UP time Introuction A warning signal at a time perio is often requeste from a power supply for the loa to complete housekeeping chores before the output voltage rops

More information

High-voltage reinforced isolation:

High-voltage reinforced isolation: High-voltage reinforced isolation: Definitions and test methodologies Anant S Kamath Systems Engineer, Isolation, Interface Group Texas Instruments Kannan Soundarapandian Product Line Manager, Isolation,

More information

PACKAGE OPTION ADDENDUM www.ti.com 12-Jan-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3) 76005012A

More information

Demystifying digital signal processing (DSP) programming: The ease in realizing implementations with TI DSPs

Demystifying digital signal processing (DSP) programming: The ease in realizing implementations with TI DSPs Demystifying digital signal processing (DSP) programming: The ease in realizing implementations with TI DSPs Todd Hahn Software Development Manager Jonathan Humphreys Software Senior Member Technical Staff

More information

LM2747,LM3100,LM5035 Synchronous Rectification in High-Performance Power Converter Design

LM2747,LM3100,LM5035 Synchronous Rectification in High-Performance Power Converter Design LM2747,LM3100,LM5035 Synchronous Rectification in High-Performance Power Converter Design Literature Number: SNVA595 POWER designer Expert tips, tricks, and techniques for powerful designs No. 112 Feature

More information

TrxEB RF PER Test Software Example. User s Guide SWRU296

TrxEB RF PER Test Software Example. User s Guide SWRU296 TrxEB RF PER Test Software Example User s Guide SWRU296 Table of Contents TABLE OF CONTENTS... 2 LIST OF FIGURES... 2 LIST OF TABLES... 3 1 INTRODUCTION... 4 2 ABOUT THIS MANUAL... 4 3 ACRONYMS AND ABBREVIATIONS...

More information

TSL250, TSL251, TLS252 LIGHT-TO-VOLTAGE OPTICAL SENSORS

TSL250, TSL251, TLS252 LIGHT-TO-VOLTAGE OPTICAL SENSORS TSL50, TSL5, TLS5 SOES004C AUGUST 99 REVISED NOVEMBER 995 Monolithic Silicon IC Containing Photodiode, Operational Amplifier, and Feedback Components Converts Light Intensity to Output Voltage High Irradiance

More information

Regulating Pulse Width Modulator

Regulating Pulse Width Modulator Regulating Pulse Width Modulator UC1526 FEATURES 8 To 35V Operation 5V Reference Trimmed To ±1% 1Hz To 400kHz Oscillator Range Dual 100mA Source/Sink Outputs Digital Current Limiting Double Pulse Suppression

More information

Achieving quality audio testing for mobile phones

Achieving quality audio testing for mobile phones Test & Measurement Achieving quality auio testing for mobile phones The auio capabilities of a cellular hanset provie the funamental interface between the user an the raio transceiver. Just as RF testing

More information

AUDIO DIFFERENTIAL LINE RECEIVER. 0dB (G = 1)

AUDIO DIFFERENTIAL LINE RECEIVER. 0dB (G = 1) INA4 INA4 INA4 INA4 INA4 INA4 AUDIO DIFFERENTIAL LINE RECEIVERS db (G = ) FEATURES SINGLE AND DUAL VERSIONS LOW DISTORTION:.% at f = khz HIGH SLEW RATE: 4V/µs FAST SETTLING TIME: µs to.% WIDE SUPPLY RANGE:

More information

Using Code Coverage and Multi-event Profiler in Code Composer Studio v2.3 for Robustness and Efficiency Analyses

Using Code Coverage and Multi-event Profiler in Code Composer Studio v2.3 for Robustness and Efficiency Analyses Application Report SPRA868A April 2004 Using Code Coverage and Multi-event Profiler in Code Composer Studio v2.3 for Robustness and Efficiency Analyses Amit Rangari, N.Pradeep Software Development Systems

More information

WHAT DESIGNERS SHOULD KNOW ABOUT DATA CONVERTER DRIFT

WHAT DESIGNERS SHOULD KNOW ABOUT DATA CONVERTER DRIFT WHAT DESIGNERS SHOULD KNOW ABOUT DATA CONVERTER DRIFT Understanding the Components of Worst-Case Degradation Can Help in Avoiding Overspecification Exactly how inaccurate will a change in temperature make

More information

TSL213 64 1 INTEGRATED OPTO SENSOR

TSL213 64 1 INTEGRATED OPTO SENSOR TSL 64 INTEGRATED OPTO SENSOR SOES009A D4059, NOVEMBER 99 REVISED AUGUST 99 Contains 64-Bit Static Shift Register Contains Analog Buffer With Sample and Hold for Analog Output Over Full Clock Period Single-Supply

More information

Designing Stable Compensation Networks for Single Phase Voltage Mode Buck Regulators

Designing Stable Compensation Networks for Single Phase Voltage Mode Buck Regulators Designing Stable Compensation Networks for Single Phase Voltage Mode Buck Regulators Technical Brief December 3 TB47. Author: Doug Mattingly Assumptions This Technical Brief makes the following assumptions:.

More information

PACKAGE OPTION ADDENDUM www.ti.com 12-Jan-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3) 5962-9557401QCA

More information

LMC835 LMC835 Digital Controlled Graphic Equalizer

LMC835 LMC835 Digital Controlled Graphic Equalizer LMC835 LMC835 Digital Controlled Graphic Equalizer Literature Number: SNOSBP5 LMC835 Digital Controlled Graphic Equalizer General Description The LMC835 is a monolithic digitally-controlled graphic equalizer

More information

CLC012 CLC012 Adaptive Cable Equalizer for ITU-T G.703 Data Recovery

CLC012 CLC012 Adaptive Cable Equalizer for ITU-T G.703 Data Recovery CLC012 Adaptive Cable Equalizer for ITU-T G.703 Data Recovery Literature Number: SNLS032D OBSOLETE September 21, 2011 Adaptive Cable Equalizer for ITU-T G.703 Data Recovery General Description National's

More information

A Low-Cost, Single Coupling Capacitor Configuration for Stereo Headphone Amplifiers

A Low-Cost, Single Coupling Capacitor Configuration for Stereo Headphone Amplifiers Application Report SLOA043 - December 1999 A Low-Cost, Single Coupling Capacitor Configuration for Stereo Headphone Amplifiers Shawn Workman AAP Precision Analog ABSTRACT This application report compares

More information

State of Louisiana Office of Information Technology. Change Management Plan

State of Louisiana Office of Information Technology. Change Management Plan State of Louisiana Office of Information Technology Change Management Plan Table of Contents Change Management Overview Change Management Plan Key Consierations Organizational Transition Stages Change

More information