AN6152 Speech Network Circuit ■ Overview • Wide operating voltage range : 3 to 11.5V • Built-in amplifiers for “Dial Tone” and “DTMF” • Amplifier • Each amplifier gain automaticaly changeable depending on 16 2 15 3 14 4 13 5 12 6 11 7 10 8 2.54 19.2±0.3 ■ Features 1 0.5±0.1 1.22±0.25 Unit : mm 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. 9 1.1±0.25 6.2±0.3 line current. • Various types of microphone and receiver are available. 5.2±0.25 3.05±0.25 + 0.1 5 0.0 0.3 – 3 to 15˚ 7.62±0.25 16-pin DIP Package (DIP016-P-0300D) ■ Block Diagram VCC VL ST AP NF MI2 MI1 DT 16 15 14 13 12 11 10 9 Current Source ATT Control SEND Main Amp. MIC Pre Amp. DTMF Pre Amp. ATT KT Pre Amp. REC Main Amp. REC Pre Amp. ATT Logic VREF 1 2 3 4 5 6 7 8 GND RO1 RO2 RF RI KT DM Vr ■ Pin Descriptions Pin No. Pin name Pin No. Pin name 1 GND 9 DTMF input 2 REC output 10 MIC input 3 REC output 11 MIC input 4 REC filter 12 SEND NF 5 REC input 13 ATT control 6 KEY IN TONE input 14 SIDE tone 7 DIAL mute SW 15 LINE 8 V reference 16 Internal suppuly voltage ■ Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Rating Unit Line voltage VL 14.4 V Line current IL 120 mA mW Power dissipation (Ta=60˚C) PD 1380 Operating ambient temperatuer Topr –30 to + 75 ˚C Storage temperature Tstg –55 to + 150 ˚C ■ Electrical Characteristics (Ta=25˚C) Parameter Symbol Condition min typ max Unit Receiver System Receiver gain (1) GV–R1 IL=30mA, Vi=–50dBV 34.5 37.5 39.5 Receiver gain (2) GV–R2 IL=80mA, Vi=–50dBV 31.5 34.0 36.5 Max. receiver VO–R IL=30mA, THD=5% 0 5 dB dB dBV KEY IN TONE gain (1) GV–KT1 IL=30mA, Vi=–50dBV 28.5 31.0 33.5 dB KEY IN TONE gain (2)*1 GV–KT2 IL=80mA, Vi=–50dBV 25.5 28.0 30.5 dB Transmission System Transmission gain (1) GV–T1 IL=30mA, Vi=–50dBV 33 35.5 38 dB Transmission gain (2) GV–T2 IL=80mA, Vi=–50dBV 29.5 32.0 34.5 dB 0 5 DTMF gain (1) GV–DT1 IL=30mA, Vi=–50dBV 28.5 30.5 32.5 dB DTMF gain (2) GV–DT2 IL=80mA, Vi=–50dBV 25.0 27.0 29.0 dB DTMF transmission level VO–DT IL=30mA, THD=5% 0 5 Max. transmission level VO–T IL=30mA, THD=5% dBV dBV Power Supply DC line voltage (1) VL–1 IL=20mA 2.6 3.1 3.6 V DC line voltage (2) VL–2 IL=120mA 7.5 9.0 10.5 V Internal supply voltage (1) VCC–1 IL=20mA 1.8 2.1 2.4 V Internal supply (2) VCC–2 IL=120mA 5.8 6.5 7.2 V AC impedance (1)*1 AC impedance (2)*1 ZAC–1 IL=30mA, fin=1kHz 450 610 750 Ω ZAC–2 IL=90mA, fin=1kHz 450 610 750 Ω Note) Operating supply voltage range : VCC (opr) = 3 to 11.5V *1 These values are of reference values but not guaranteed values. ■ Electrical Characteristics (cont.) (Ta=25˚C) Parameter Symbol Condition min typ max Unit Dial Mute Input Dial mute OFF VDM–H Dial mute ON VDM–L 0.3 V Input current (1) IDM–H VDM=VCC –2.0 0.1 2.0 µA Input current (2) IDM–L –2.0 – 0.2 – 0.02 µA REC mute * M–R KT mute *1, 2 M–KT MIC mute *1, 2 M–DT DTMF mute *1, 2 M–DT 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 1, 2 0.8 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. VCC V 50 dB 50 dB 60 dB 50 dB