PBL3726-18A Description
PBL 3726/18A is a standard version of the PBL 3726 family of the mask-programmable, monolithic integrated speech circuits for use in electronic telephones. It is designed for use with a low impedance microphone. Transmitting and receiving gain is regulated with line length.
PBL3726-18A Key Features
- Minimum number of inexpensive external ponents, 7 capacitors and 11 resistors
- Mute function for operation with DTMF-generator
- Transmit and receive gain regulation for automatic loop loss pensation
- Extended current and voltage range 5
- 130 mA, down to 2 V
- Differential microphone input for good balance to ground
- Balanced receiver output stage
- Short start-up time
- Stabilized DC-supply for low current CMOS diallers and/or electret microphones
- DTMF-input controlled by mute