Description
The AS2507 is a CMOS integrated circuit that contains all the functions needed to build a 2wire intercom network.
Features
- Line/speech circuit and signalling on one 14
pin CMOS chip
Only 2 wires needed for power supply,
signalling and speech
Soft clipping to avoid harsh distortion Fully integrated 2/4 wire conversion Side tone cancellation Low noise Signalling with FSK modem Low standby power consumption allows
parallel operation of up to 25 terminals on a bus pair with central supply
Parallel operation of up to 70 terminals if
supplied locally
Controllable via simple µC interface Very few exte.
AS2507 Datasheet
