PBL38573 Description
PBL 38573 is a monolithic integrated speech transmission circuit for use in electronic telephones. It is intended specially for telephone lines with constant current feed. Maximum line current less than 130 mA in DIL package (100 mA in SO package).
PBL38573 Key Features
- Minimum number of external ponents for function,with one filtered DC-supply. 6 capacitors and 10 resistors. Easy adaptio
- generator. Transmitter and receiver gain regulation for automatic loop loss pensation. Disconnectable. Extended current
- 130mA (DIP), down to 2 V. Differential microphone input for good balance to ground. Balanced receiver output stage. Stab
- supply for low current CMOS diallers and electret microphones. Short start up time. Excellent RFI performance. In 14- pi
- 1 9 MIC. 10