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| AN6150 Speech Network Circuit s Overview The AN6150 is an integrated circuit designed for telephone speech network. It has the basic function necessary to apply a sound signal onto the line and is applicable for various types of handsets. 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 output switchable. * Each amplifier gain automatically changeable depending on line current. * Various types of microphones and receivers are available. 0.3 - 3 to 15 7.620.25 16-pin DIL Plastic Package (DIP016-P-0300D) s Block Diagram VL 16 VLC 15 ST 14 SF 13 MIC 12 DT 11 DM 10 KT 9 V-I Control SEND Main Amp. MIC PreAmp. ATT Logic DTMF PreAmp. ATT KT PreAmp. 2V REG 1V REG Current Check REC Main Amp. REC PreAmp. ATT 1 GND 2 V2 3 V1 4 AP 5 RO1 6 RO2 7 RF 8 RI s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 GND 2V REG. 1V REG. ATT control REC output REC output REC filter REC input Pin name Pin No. 9 10 11 12 13 14 15 16 Pin name KEY In TONE input Dial mute SW DTMF input MIC input Transmission filter SIDE tone LIN filter LIN s Absolute Maximum Ratings (Ta=25C) Parameter Line voltage Line current Power dissipation (Ta=60C) Operating ambient temperature Storage temperature Symbol VL IL PD Topr Tstg Rating 14.4 135 1380 -30 to + 75 -55 to + 150 Unit V mA mW C C s Electrical Characteristics (IL=40mA, fin=1kHz, Ta=25C) Parameter Receive System Receiver gain *1 Receiver output distortion *1 Max. receiver level *1 Receiver auto pad *1 KEY IN TONE gain *1 Transmission System Transmission gain *2 Transmission output distortion *2 Max. transmission level *2 Transmission auto pad *2 DTMF gain *2 DTMF output distortion *2 DTMF auto pad *2 Power Supply DC line voltage (1) DC line voltage (2) Internal supply voltage *1 *2 VL - 1 VL - 2 VCC IL=12mA IL=127mA IL=12mA 2.4 5.4 1.7 3 7.8 2.0 3.6 10.2 2.3 V V V GV-T THD-T VO -T AP- T GV- DT THD- DT AP- DT Vi=-45dBm Vi=-45dBm THD=5% Vi=-45dBm, DIL=100 to 20mA Vi=-35dBm, Dial Mute SW- ON Vi=-35dBm, Dial Mute SW- ON Vi=-35dBm, DIL=100 to 20mA -2.2 -6.5 -8 -6 -4 1 2.8 -3.5 -6 1 -6 -4 -1 -4 5 -2 -2 5 dBm % dBm dB dBm % dB GV- R THD- R VO - R AP- R GV-KT Vi=-45dBm Vi=-45dBm THD=5% Vi=-45dBm, DIL=100 to 20mA Vi=-40dBm, Dial Mute SW- ON 0 -5.5 -25 -7 -4.5 1 4 -3 -22.5 - 0.5 -20 -2 5 dBm % dBm dB dBm Symbol Condition min typ max Unit Connect the 1k load between Pins5 and 6 for measurement. Connect the 600 receiver impedance between Pins16 and 1 and measure it at the receiver side. s Electrical Characteristics (cont.) (IL=40mA, fin=1kHz, Ta=25C) Parameter Dial Mute input Dial mute OFF Dial mute ON Input current (1) Input current (2) Receiver System K. T. output distortion *1, Mute K.T. mute *1, MIC mute *2, 4 4 Symbol VDM-H VDM-L IDM-H IDM-L THD-KT VDM=VCC VDM=0V Condition min 0.8 -2.0 -2.0 typ max VCC 0.3 Unit V V A A % 0.1 - 0.2 1 2.0 - 0.02 Vi=-42dBV, IL=40mA Vi=-15dBV, Dial mute SW- OFF Vi=-40dBV, Dial mute SW- ON Vi=-28dBV, Dial mute SW- OFF IL=30mA, fin=1kHz IL=90mA, fin=1kHz M-KT M-T 4 40 60 40 dB dB dB 4 DTMF mute *2, Power Supply M-DT AC impedance (1)*3, AC impedance (2)*3, 4 4 ZAC-1 ZAC-2 400 400 670 620 800 800 *1 Connect the 1k load between Pins5 and 6 for measurement *2 Connect the 600 receiver impedance between Pins16 and 1 measure it at the receiver side. *3 Connect + - between Pins16 and 1 for measurement. 100F 820 *4 Characteristics above are of reference valuse for design but not guaranteed values. s Characteristics Curve VL- IL 8 7 6 5 4 3 2 1 0 800 700 Il.=20mA Il.=50mA ZAC - f AC Impedance ZAC () Line Voltage VL (V) 600 500 400 300 200 100 0 0.1 Il.=80mA 0 40 80 120 160 0.5 1 5 10 Line Current IL (mA) Frequency f (kHz) Vout (REC), THD - IL 0 Vout (MIC), THD - IL 0 Transmission Auto Pad Vout (MIC) (dBV) Receiver Auto Pad Vout (REC) (dBV) -2 -4 -6 -8 Vout -10 -12 -14 THD 0 40 80 in = -47dBV f =1kHz -2 -4 -6 in = -47dBV f =1kHz 10 10 8 6 4 2 0 160 Distortion THD (%) 8 6 4 2 0 160 -8 -10 -12 -14 THD 0 40 80 120 120 Line Current IL (mA) Line Current IL (mA) Vout (DTMF), THD - IL 0 DTMF Auto Pad Vout (DTMF) (dBV) -2 -4 -6 -8 Vout -10 -12 -14 in = -37dBV f =1kHz 10 8 (DTMF) 6 4 2 0 160 THD 0 40 80 120 Line Current IL (mA) Distortion THD (%) Distortion THD (%) Vout (MIC) s Application Circuits * In case of using ceramic receiver R10 4.7k C9 0.022F R11 2.7k R9 12k ECM Ceramic T DTMF Key in tone R12 9.1k - R13 9.1 k R8 620 R5 R7 62 C8 0.0022F C7 0.068F 12 R4 SW2 C6 0.068F 11 10 9 R3 C5 0.068F + C11 100F Diode Bridge L2 R14 820 1 + - C10 47F L1 16 15 14 13 AN6150 2 3 4 5 6 7 8 C1+ 470F - + - C2 100F SW1 C4 0.068F C3 0.047F receiver R2 R1 * In case of using low impedance receiver R10 4.7k C9 0.022F R11 2.7k R9 12k ECM Ceramic T DTMF Key in tone R12 9.1k - R13 9.1 k R8 620 R5 R7 62 C8 0.0022F C7 0.068F 12 R4 SW2 C6 0.068F 11 10 9 R3 C5 0.068F + C11 100F Diode Bridge L2 R14 820 1 + - C10 47F L1 16 15 14 13 AN6150 2 3 4 5 R15 6 7 8 C1 + 470F - + - C2 100F SW1 R R1 C4 0.068F C3 0.047F R2 |
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