HT45F2020 Sound Effect Generator IC

Transcription

1 Sound Effect Generator IC Features Supply Voltage: 8 ~ 30V 200ms Soft Chirp Function Fade-in Function Up to 8 stored sound capacity Package type: SOT23-6 Application Car Alarms Security Products Restaurant/Cafe Pagers Other products requiring recorded sound effects General Description The HT45F2020 is a sound effect generator device with a capacity to store up to 8 sound files. With its fully integrated 8~30V shunt regulator type power supply the device offers a range of integrated functions to enable it to be implemented in a wide range of sound effect applications. Being supplied in a 6-pin SOT23-6 package type the device can be used in applications where space might be limited. Using the Holtek supplied Sound Effect Generator Wizard development tools, sound file production along with programming and play sound evaluation is made into an easy and rapid process. Other functions include a 200ms soft chirp and fade-in features. With its highly integrated range of functions and development platform Holtek has greatly simplified the sound effect generation process and one in which the hardware only requires a minimum of external components. Block Diagram Sound Storage Time Base & Oscillator Driver Shunt Regulator Control Unit Pin Assignment SOT23-6 CLK/ Top View DATA/ Rev March 02, 2016

2 Pin Description Pin Name Function I/T O/T Description PWR Power Supply PWR Ground DATA/ DATA ST CMOS Data pin ST CMOS General purpose I/O CLK/ CLK ST Clock pin ST CMOS General purpose I/O CMOS Output CMOS Inverted output Legend: I/T: Input type; O/T: Output type; PWR: Power; ST: Schmitt Trigger input; CMOS: CMOS output; Absolute Maximum Ratings Supply Voltage V to +6.0V Input Voltage V to +0.3V Storage Temperature C to 125 C Operating Temperature C to 85 C Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. D.C. Characteristics Symbol Parameter Test Conditions Conditions Min. Ta = 25 C Typ. Max. Unit Operating Voltage V IDD Operating Current 5V No load, all peripherals off, fsys = 8MHz ma VIL Input Low Voltage for,,, 5V V VIH Input High Voltage for,,, 5V V IOL Sink Current for,,, 5V VOL = ma IOH Source Current for,,, 5V VOH = ma RPH Pull-high Resistance for,,, 5V kω Rev March 02, 2016

3 Shunt Regulator Electrical Characteristics CBYPASS = 4.7μF, Ta = 25 C Symbol Parameter Test Conditions Min. Typ. Max. Unit VUNREG Supply Voltage 8 30 V 1 2 Load voltage with no load in room temperature Load voltage Load and Supply Voltage within Specification VUNREG = 8V to 16V, ISUPPLY = ISHUNT(Max) with VUNREG = 16V, no load ISUPPLY = ISHUNT(Max) with VUNREG = 16, no load, select RSER (1) (1) VUNREG = 8V, ILOAD = ILOAD(Max) (2) VUNREG = 16V, ILOAD = 0 ILOAD Load Current (2) VUNREG = 8V ~ 16V RSER = (16-1) / ISHUNT(Max) -3% 5 3% V -5% 5 5% V 0 15 ma ISHUNT(Max) Maximum Current of IShunt VUNREG = 16V 80 ma ISTATIC Maximum Static Current VUNREG = 16V 5 ma VLINE Line Regulation VUNREG = 8V to 16V, no load RSER = (16V - 1) / ISHUNT(Max) 0.3 %/V VUNREG = 8V to 16V, VRIPPLE Output Voltage Ripple (Stable) RSER = (16V - 1) / ISHUNT(Max) SEG alternately consumes the average current ISEG and ILOAD(Max). The SEG varies its consumption current once every 0.5ms (3) 100 mv VUNREG = 8V, RSER = (16V - 1) / ISHUNT(Max) 0.03 %/ma ILOAD = 0mA to ILOAD(Max) VLOAD Load Regulation VUNREG =, RSER = (16V - 1) / ISHUNT(Max) 0.03 %/ma ILOAD = 0mA to ILOAD(Max) VUNREG = 16V, RSER = (16V - 1) / ISHUNT(Max) 0.03 %/ma ILOAD = 0mA to ILOAD(Max) Rev March 02, 2016

4 Functional Description The HT45F2020 sound effect generator device is designed to be used in conjunction with the Holtek supplied Sound Effect Generator Wizard, which will allow users to easily and rapidly develop their sound generator applications. The device offers the advantages of a fully internal shunt regulator allowing it to be used with a wide range of external power supply voltages with the simple addition of an external resistor and capacitor. Shunt Regulator A fully internal shunt regulator circuit is fully integrated within the device to provide regulated power to the internal circuitry. This enables the device to operate with a large input voltage range such as that which might be found in automotive applications. The only external components required are an external resistor between the external power supply and the pin, and a capacitor between and ground. V UNREG The value of RSER is calculated as follows: RSER = (VUNREG ) / ISUPPLY ; Where ISUPPLY = ISHUNT(Max) which should be less than or equal to 80mA The maximum value of the load current is calculated as follows: ILOAD(Max) = ISHUNT(Max) (VUNREG(Min) 1(Max)) / (VUNREG(Max) V(Min)) ISTATIC(Measured) Where VUNREG(Max), 1(Max) = Maximum specification value for VUNREG and 1 respectively and VUNREG(Min), 1(Min) = Minimum specification value for VUNREG and 1 respectively Note that ISEG = sound effect generator current consumption measured when the generator toggles two I/O pins every 0.5ms with no load. Sound Effect Generator Wizard The device must be used together with the Holtek supplied Sound Effect Generator Wizard software. I SUPPLY V DD R SER C BYPASS I SHUNT I LOAD Feedback Examination of the shunt regulator block diagram will reveal that the supply current will be determined by the value of the external RSER resistor. For this reason selection of this resistor value is an important issue. It is recommended that the following criteria are used when deciding on the value of RSER. Evaluation Board An evaluation board is available from Holtek to enable the easy development of user applications. This is used together with the Sound Effect Generator Wizard software and the Holtek e-link to enable the user sound files to be programmed into the device. The evaluation board also allows the user to immediately play the files thus allowing for rapid evaluation of the required sound effects. Rev March 02, 2016

5 Evaluation Board Circuit J1 R1 150/2W SW1 C1 C2 C3 C4 Adapter 10uF uF ~100uF ohm/0.2W Speaker ICPCK LS1 ICPDA GND 1 4P2T HT45F2020 Rev March 02, 2016

6 Application Circuits Buzzer 750Ω/0.25W 750Ω/0.25W 1kΩ 22μF ~ 1kΩ Buzzer 22μF ~ 1kΩ Fig 1 Fig 2 Speaker 150Ω/2W 750Ω/0.25W 1N μF ~ 100Ω Speaker 22μF ~ 10Ω A03400 Fig 3 Fig 4 430Ω/0.25W 22μF~ 820Ω 820Ω Speaker 150Ω 150Ω Fig 5 Rev March 02, 2016

7 Package Information Note that the package information provided here is for consultation purposes only. As this information may be updated at regular intervals users are reminded to consult the Holtek website for the latest version of the package information. Additional supplementary information with regard to packaging is listed below. Click on the relevant section to be transferred to the relevant website page. Further Package Information (include Outline Dimensions, Product Tape and Reel Specifications) Packing Meterials Information Carton information Rev March 02, 2016

8 6-pin SOT23-6 Outline Dimensions H Dimensions in inch Symbol Min. Nom. Max. A A A b C D BSC E BSC e BSC e BSC H BSC L BSC θ 0 8 Dimensions in mm Symbol Min. Nom. Max. A 1.45 A A b C D 2.90 BSC E 1.60 BSC e 0.95 BSC e BSC H 2.80 BSC L BSC θ 0 8 Rev March 02, 2016

9 Copyright 2016 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek's products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at Rev March 02, 2016