PBL38541 Description
PBL 38541 is a monolithic integrated speech transmission circuit for use in electronic telephones or in any other line interface application. High settable supply current for auxiliary functions, up to 6.0 mA (at high line currents). The circuit is designed to acodate either a low impedance dynamic or an electret microphone.
PBL38541 Key Features
- Minimum number of external ponents, with two filtered DCsupplies, 7 capacitors and 11 resistors. Easy adaption to variou
- generator. A separate signaling input for payphone and DTMF tones controlled by mute. Transmitter and receiver gain regu
- 130 mA, down to 2 .2V. Differential microphone input for good balance to ground. Balanced receiver output stage. One sta
- supply for low current CMOS diallers and or electret microphones. One settable current limited supply with 6 mA max. cur
- pin DIP and 20
- pin SO packages
- Telephone line
- output for external devices