Bipolar Linear/I 2 L TELEPHONE TONE RINGER BIPOLAR LINEAR/I2L

Transcription

1 Order this document by M0/D Bipolar Linear/I L omplete Telephone Bell Replacement ircuit with Minimum External omponents On hip Diode Bridge and Transient Protection Direct Drive for Piezoelectric Transducers Push Pull Output Stage for Greater Output Power apability Base Frequency Options M0 :.0 khz M0 :.0 khz M0 : 00 Hz Input Impedance Signature Meets Bell and EIA Standards Rejects Rotary Dial Transients TELEPHONE TONE NGER BIPOLAR LINEAR/IL SEMIONOR TEHNIAL DATA D SUFFIX PLASTI PAKAGE ASE Typical Application P SUFFIX PLASTI PAKAGE ASE 0 k k. µf.0 V.0 µf V PIN ONNETIONS Ring A R A RO A Tip.0 µf. k M0 X A RO RO RO (Top View) R M0 : = 000 pf M0 : = 00 pf M0 : = 000 pf Piezo Sound Element This device contains 9 active transistors and 9 gates. Device M0D M0P ORDENG INFORMATION Operating Temperature Range T A = 0 to +0 Package SOI Plastic DIP Motorola, Inc. 99 MOTOROLA ANALOG I DEVIE DATA

2 M0 MAXIMUM RATINGS (Voltages Referenced to, Pin ) Rating Symbol Value Unit Operating A Input urrent (Pins, ) 0 ma, RMS Transient Input urrent (Pins, ) (T<.0 ms) Vin ±00 ma, peak Voltage Applied at R (Pin ) VR.0 V Voltage Applied at (Pin ) V.0 V Voltage Applied to Outputs (Pins, ) VO.0 to V V Power Dissipation (@ ) PD.0 W Operating Ambient Temperature TA 0 to +0 Storage Temperature Tstg to +0 NOTE: ESD data available upon request. ELETAL HARATESTIS (TA = ) haracteristic Test Symbol Min Typ Max Unit Ringing Start Voltage VStart = VI at Ring Start VI > 0 a VStart (+). VI < 0 b VStart ( ). Ringing Stop Voltage c VStop Vdc VStop = VI at Ring Stop M0 M0 0 M0 Output Frequencies (VI = 0 V) d Hz M0 High Tone fh M0 Low Tone fl 0 M0 Warble Tone fw.. M0 High Tone fh 00 M0 Low Tone fl 0 M0 Warble Tone fw.. M0 High Tone fh M0 Low Tone fl 0 M0 Warble Tone fw Output Voltage (VI = 0 V) VO Vpp Output Short ircuit urrent IRO, IRO 0 0 mapp Input Diode Voltage (II =.0 ma) VD... Vdc Input Voltage SR Off (II = 0 ma) a Voff 0 Vdc Input Voltage SR On (II = 00 ma) b Von...0 Vdc lamp Voltage (VI = 0 V) Vclamp... Vdc Vdc PIN FUNTION DESPTION Pin Symbol Description, A, A The input terminals to the full wave diode bridge. The ac ringing signal from the telephone line energizes the ringer through this bridge. The input of the threshold comparator to which diode bridge current is mirrored and sensed through an external resistor (R). Nominal threshold is. V. This pin internally clamps at. V. The positive supply terminal for the oscillator, frequency divider and output buffer circuits., RO, RO The tone ringer output terminals through which the sound element is driven. The negative terminal of the diode bridge and the negative supply terminal of the tone generating circuitry. R The oscillator terminal for the external resistor and capacitor which control the tone ringer frequencies (R, ). MOTOROLA ANALOG I DEVIE DATA

3 M0 APPLIATION IRUIT PERFORMANE (Refer to Typical Application) haracteristic Typical Value Units Output Tone Frequencies Hz M0 0/00 M0 /00 M0 0/0 Warble Frequencies. Output Voltage (VI 0 Vrms, 0 Hz) Vpp Output Duty ycle 0 % Ringing Start Input Voltage (0 Hz) Vrms Ringing Stop Input Voltage (0 Hz) Vrms Maximum A Input Voltage ( Hz) 0 Vrms Impedance When Ringing VI = 0 Vrms, Hz > VI = 0 Vrms, Hz Impedance When Not Ringing VI = 0 Vrms, Hz kω VI =. Vrms, Hz >.0 MΩ VI = 0 Vrms,.0 Hz kω VI =.0 Vrms, Hz >00 kω Maximum Transient Input Voltage (T.0 ms) 00 V Ringer Equivalence: lass A 0. Ringer Equivalence: lass B 0.9 kω Block Diagram Tip Ring R A A Diode Bridge SR Transient lamp V Bias Push Pull Output Buffer Input urrent Mirror RO RO Piezo Sound Element R R Oscillator Tone Frequency Divider Warble Frequency Divider Ref Threshold omparator R MOTOROLA ANALOG I DEVIE DATA

4 M0 IRUIT DESPTION The M0 Tone Ringer derives its power supply by rectifying the ac ringing signal. It uses this power to activate a tone generator and drive a piezo ceramic transducer. The tone generation circuitry includes a relaxation oscillator and frequency dividers which produce high and low frequency tones as well as the tone warble frequency. The relaxation oscillator frequency fo is set by resistor R and capacitor connected to Pin R. The oscillator will operate with fo from.0 khz to 0 khz with the proper choice of external components (see Figure ). The frequency of the tone ringer output signal at RO and RO alternates between fo/ to fo/. The warble rate at which the frequency changes is fo/0 for the M0, fo/0 for the M0 and fo/0 for the M0. With a.0 khz oscillator frequency, the M0 produces 00 Hz and 000 Hz tones with a. Hz warble rate. The M0 generates 00 Hz and 000 Hz tones with a similar. Hz warble frequency from an.0 khz oscillator frequency. The M0 will produce 00 Hz and 00 Hz tones with a. Hz warble rate from a.0 khz oscillator frequency. The tone ringer output circuit can source or sink 0 ma with an output voltage swing of V peak to peak. Volume control is readily implemented by adding a variable resistance in series with the piezo transducer. Input signal detection circuitry activates the tone ringer output when the ac line voltage exceeds programmed threshold level. Resistor R determines the ringing signal amplitude at which an output signal at RO and RO will be generated. The ac ringing signal is rectified by the internal diode bridge. The rectified input signal produces a voltage across R which is referenced to. The voltage across resistor R is filtered by capacitor at the input to the threshold circuit. /f o, OSILLATOR PEOD ( µ s) Figure. Oscillator Period (/fo) versus Oscillator R Product 0 k R 00 k 00 pf 000 pf R, OSILLATOR R PRO (µs) When the voltage on capacitor exceeds. V, the threshold comparator enables the tone ringer output. Line transients produced by pulse dialing telephones do not charge capacitor sufficiently to activate the tone ringer output. apacitors and and resistor R determine the 0 V, Hz signature test impedance. also provides filtering for the output stage power supply to prevent droop in the square wave output signal. Six diodes in series with the rectifying bridge provide the necessary non linearity for the. V, Hz signature tests. An internal shunt voltage regulator between the and terminals provides dc voltage to power the output stage, oscillator and frequency dividers. The dc voltage at is limited to approximately V in regulation. To protect the I from telephone line transients, an SR is triggered when the regulator current exceeds 0 ma. The SR diverts current from the shunt regulator and reduces the power dissipation within the I. EXTERNAL OMPONENTS R R R Line Input Resistor R affects the tone ringer input impedance. It also influences ringing threshold voltage and limits current from line transients. (Range:.0 to 0 kω). Line Input apacitor ac couples the tone ringer to the telephone line and controls ringer input impedance at low frequencies. (Range: 0. to.0 µf). Oscillator Resistor (Range: 0 to 00 kω). Oscillator apacitor (Range: 00 to 000 pf). Input urrent Sense Resistor R controls the ringing threshold voltage. Increasing R decreases the ring start voltage. (Range:.0 to kω). Ringing Threshold Filter apacitor filters the ac voltage across R at the input of the ringing threshold comparator. It also provides dialer transient rejection. (Range: 0. to.0 µf). Ringer Supply apacitor filters supply voltage for the tone generating circuits. It also provides an ac current path for the 0 Vrms ringer signature impedance. (Range:.0 to 0 µf). (/fo =. R + 0 µs) MOTOROLA ANALOG I DEVIE DATA

5 M0 Figure. Test One VI. k* A A VO 90 Ω RO R 0 k* M0 : = 000 pf* M0 : = 00 pf* M0 : = 000 pf* RO 0.0 µf k*.0 µf 0. µf VDD 0 k. k 0. µf S (Normally Open) a. Increase V I from + V while monitoring V O. V Start (+) equals V I when V O commences switching. b. Decrease V I from V while monitoring V O. V Start ( ) equals V I when V O commences switching. c. Decrease V I from +0 V while monitoring V O. V Stop equals V I when V O ceases switching. d. Set V I to +0 V. lose S. Measure frequencies f H, f L and f W. Q 0 k R VDD 0.0 µf* 00 k VDD I µf / I fh I M0B I MB VDD = V Q N90 *Indicates % tolerance (% otherwise) 9 / I 0 fl fw M0 : R = 0 kω* M0 : R = kω* M0 : R = 0 kω* MOTOROLA ANALOG I DEVIE DATA

6 M0 Figure. Test Two 0 V. k*.0 V S IRO IRO A RO RO A R 0 k* S.0 k VR 0 V k* 0. µf M0 : = 000 pf* M0 : = 00 pf* M0 : = 000 pf* *Indicates % tolerance (% otherwise) With V R =.0 V, close S. Switch S to Pin and measure current at Pin (I O ). Repeatedly switch V R between.0 V and 0 V until Pin current changes polarity. Measure the opposite polarity current (I O ). alculate: I RO = I O + I O. Switch S to Pin and repeat. alculate: I RO = I O + I O. Figure. Test Three VD.0 ma A RO A Measure voltage at Pin. 90 Ω R 0 k* 0.0 µf RO R k* *Indicates % tolerance (% otherwise) 0. µf M0 : = 000 pf* M0 : = 00 pf* M0 : = 000 pf* MOTOROLA ANALOG I DEVIE DATA

7 M0 Figure. Test Four V A A I RO R 0 k* RO k* M0 : = 000 pf* M0 : = 00 pf* M0 : = 000 pf* *Indicates % tolerance (% otherwise) 0. µf a. Set I to 0 ma. Measure voltage at Pin (V off ). b. Set I to 00 ma. Measure voltage at Pin (V on ). (Each test < 0 ms) Figure. Test Five 0 V. k* A RO A R 0 k* RO k* M0 : = 000 pf* M0 : = 00 pf* M0 : = 000 pf* *Indicates % tolerance (% otherwise) Vclamp Measure voltage at Pin (Vclamp). Figure. Test Six 0 V. k* A RO A.0 k 0 k VO RO R 0 k* S VR k* 0. µf M0 : = 000 pf* M0 : = 00 pf* M0 : = 000 pf* *Indicates % tolerance (% otherwise) With V R =.0 V, close S. Measure dc voltage between Pins and (V O ). Repeatedly switch V R between.0 V and 0 V until Pins and change state. Measure the new voltage between Pins and (V O ). alculate: V O = V O + V O. MOTOROLA ANALOG I DEVIE DATA

8 M0 OUTLINE DIMENSIONS T G X D A B K X P SEATING PLANE 0. (0.00) M T B S A S 0. (0.00) M B M M D SUFFIX PLASTI PAKAGE ASE 0 ISSUE N R X J F NOTES:. DIMENSIONING AND TOLERANING PER ANSI Y.M, 9.. ONTROLLING DIMENSION: MILLIMETER.. DIMENSIONS A AND B DO NOT INLUDE MOLD PROTRUSION.. MAXIMUM MOLD PROTRUSION 0. (0.00) PER SIDE.. DIMENSION D DOES NOT INLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0. (0.00) TOTAL IN EXESS OF THE D DIMENSION AT MAXIMUM MATEAL ONDITION. MILLIMETE INHES DIM MIN MAX MIN MAX A B D F G. BS 0.00 BS J K M 0 0 P R NOTE T SEATING PLANE H F A G D N B K 0. (0.00) M T A M B M P SUFFIX PLASTI PAKAGE ASE 0 ISSUE K L J M NOTES:. DIMENSION L TO ENTER OF LEAD WHEN FORMED PARALLEL.. PAKAGE ONTOUR OPTIONAL (ROUND OR SQUARE ORNE).. DIMENSIONING AND TOLERANING PER ANSI Y.M, 9. MILLIMETE INHES DIM MIN MAX MIN MAX A B D F G. BS 0.00 BS H J K L. BS 0.00 BS M 0 0 N Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; JAPAN: Nippon Motorola Ltd.; Tatsumi SPD JLD, F Seibu Butsuryu enter, P.O. Box 09; Phoenix, Arizona or 0 0 Tatsumi Koto Ku, Tokyo, Japan. 0 MFAX: RMFAX0@ .sps.mot.com TOUHTONE 0 09 ASIA/PAIFI: Motorola Semiconductors H.K. Ltd.; B Tai Ping Industrial Park, INTERNET: NET.com Ting Kok Road, Tai Po, N.T., Hong Kong. 99 MOTOROLA ANALOG I DEVIE M0/D DATA