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| AN6152 Speech Network Circuit s Overview The AN6152 is an integrated circuit designed for telephone speech network. It has the basic function which is necessary to apply a sound signal onto the line and excellent in branch performance. 19.20.3 1 2 3 4 5 6 7 8 6.20.3 5.20.25 16 15 14 13 12 11 10 9 1.10.25 3.050.25 2.54 + 0.1 5 0.0 Unit : mm 0.50.1 1.220.25 s Features * Wide operating voltage range : 3 to 11.5V * Built-in amplifiers for "Dial Tone" and "DTMF" * Amplifier * Each amplifier gain automaticaly changeable depending on line current. * Various types of microphone and receiver are available. 0.3 - 3 to 15 7.620.25 16-pin DIP Package (DIP016-P-0300D) s Block Diagram VCC 16 VL 15 ST 14 AP 13 NF 12 MI2 11 MI1 10 DT 9 Current Source ATT Control MIC Pre Amp. SEND Main Amp. ATT KT Pre Amp. DTMF Pre Amp. REC Main Amp. ATT REC Pre Amp. Logic VREF 1 GND 2 RO1 3 RO2 4 RF 5 RI 6 KT 7 DM 8 Vr s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 GND REC output REC output REC filter REC input KEY IN TONE input DIAL mute SW V reference Pin name Pin No. 9 10 11 12 13 14 15 16 MIC input MIC input SEND NF ATT control SIDE tone LINE Internal suppuly voltage Pin name DTMF input s Absolute Maximum Ratings (Ta=25C) Parameter Line voltage Line current Power dissipation (Ta=60C) Operating ambient temperatuer Storage temperature Symbol VL IL PD Topr Tstg Rating 14.4 120 1380 -30 to + 75 -55 to + 150 Unit V mA mW C C s Electrical Characteristics (Ta=25C) Parameter Receiver System Receiver gain (1) Receiver gain (2) Max. receiver KEY IN TONE gain (1) KEY IN TONE gain (2)*1 Transmission System Transmission gain (1) Transmission gain (2) Max. transmission level DTMF gain (1) DTMF gain (2) DTMF transmission level Power Supply DC line voltage (1) DC line voltage (2) Internal supply voltage (1) Internal supply (2) AC impedance (1)*1 AC impedance (2)*1 VL-1 VL-2 VCC-1 VCC-2 ZAC-1 ZAC-2 IL=20mA IL=120mA IL=20mA IL=120mA IL=30mA, fin=1kHz IL=90mA, fin=1kHz 2.6 7.5 1.8 5.8 450 450 3.1 9.0 2.1 6.5 610 610 3.6 10.5 2.4 7.2 750 750 V V V V GV-T1 GV-T2 VO-T GV-DT1 GV-DT2 VO-DT IL=30mA, Vi=-50dBV IL=80mA, Vi=-50dBV IL=30mA, THD=5% IL=30mA, Vi=-50dBV IL=80mA, Vi=-50dBV IL=30mA, THD=5% 33 29.5 0 28.5 25.0 0 35.5 32.0 5 30.5 27.0 5 32.5 29.0 38 34.5 dB dB dBV dB dB dBV GV-R1 GV-R2 VO-R GV-KT1 GV-KT2 IL=30mA, Vi=-50dBV IL=80mA, Vi=-50dBV IL=30mA, THD=5% IL=30mA, Vi=-50dBV IL=80mA, Vi=-50dBV 34.5 31.5 0 28.5 25.5 37.5 34.0 5 31.0 28.0 33.5 30.5 39.5 36.5 dB dB dBV dB dB Symbol Condition min typ max Unit Note) Operating supply voltage range : VCC (opr) = 3 to 11.5V *1 These values are of reference values but not guaranteed values. s Electrical Characteristics (cont.) (Ta=25C) Parameter Dial Mute Input Dial mute OFF Dial mute ON Input current (1) Input current (2) REC mute * 1, 2 Symbol VDM-H VDM-L IDM-H IDM-L M-R M-KT M-DT M-DT VDM=VCC Condition min 0.8 -2.0 -2.0 50 50 60 50 typ max VCC 0.3 Unit V V A A dB dB dB dB 0.1 - 0.2 2.0 - 0.02 KT mute *1, 2 MIC mute *1, 2 DTMF mute *1, 2 VDM=0V IL=30mA, Vi=-35dBV, Dial Mute SW- ON IL=30mA, Vi=-30dBV, Dial Mute SW- OFF IL=30mA, Vi=-35dBV, Dial Mute SW- ON IL=30mA, Vi=-30dBV, Dial Mute SW- OFF Note) Operating supply voltage range : VCC (opr) = 3 to 11.5V *1 These values are of reference values but not guaranteed values. *2 Measure the output signal ratio when each amp. system operates or does not operate. |
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