PBL38541
Key Features
- Minimum number of external components, with two filtered DCsupplies, 7 capacitors and 11 resistors. Easy adaption to various market needs. Mute control input for operation with DTMF - generator. A separate signaling input for payphone and DTMF tones controlled by mute. Transmitter and receiver gain regulation for automatic loop loss compensation. Extended current and voltage range 4 - 130 mA, down to 2 .2V. Differential microphone input for good balance to ground. Balanced receiver output stage. One stabilized DC - supply for low current CMOS diallers and or electret microphones. One settable current limited supply with 6 mA max. current. Short start up time. Excellent RFI performance. 18 - pin DIP and 20 - pin SO packages. * * * * * * *
- 1 DTMF input 10
