KA8504 Samsung, KA8504 Datasheet
KA8504
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KA8504 Summary of contents
Page 1
... KA8504 SPEECH NETWORK WITH DIALER INTERFACE INTRODUCTION The KA8504 is a telephone speech network which includes TX Amp, RX Amp and DTMF Amp. The gain is controlled automatically by sensing the line current. The circuit internally performs electronic switching between dialing and speech by mute signal. FEATURES ...
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... KA8504 SPEECH NETWORK WITH DIALER INTERFACE PIN CONFIGURATION BIAS MUTE GND PIN DESCRIPTION Pin No Symbol 1 V Positive power line and TX Amp Output Current input. Current output the line current is large, this pin dissipates excess power (current) 4 BIAS AC signal reference voltage terminal. ...
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... KA8504 SPEECH NETWORK WITH DIALER INTERFACE ABSOLUTE MAXIMUM RATINGS Characteristic Line Voltage Line Current Surge Line Current (2 sec) Power Dissipation Operating Temperature Storage Temperature ELECTRICAL CHARACTERISTICS ( 1KHz, unless otherwise noted) Characteristic Symbol Line Voltage Internal Operating Voltage T Gain X T Dynamic Output Voltage ...
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... KA8504 SPEECH NETWORK WITH DIALER INTERFACE APPLICATION CIRCUIT Fig.3 ...