PRELIMINARY
Am79R70
Ringing Subscriber Line Interface Circuit
DISTINCTIVE CHARACTERISTICS
s Ideal for ISDN-TA and set top applications s On-chip ringing with on-chip ring-trip detector s Low standby state power s Battery operation: — VBAT1: –40 V to –67 V — VBAT2: –19 V to VBAT1 s On-chip battery switching and feed selection s On-hook transmission s Polarit...
