Description
The Si3050+Si3018/19 Voice DAA chipset provides a highly-programmable and globally-compliant foreign exchange office (FXO) analog interface that is ideal for DSL IADs, PBXs, IP-PBXs, and VoIP gateway products. The solution implements Silicon Laboratories' patented isolation capacitor technology, which eliminates the need for costly isolation transformers, relays, or opto-isolators, while providing superior surge immunity for robust field performance.

FEATUREs
PCM highway data interface
µ-law/A-law companding
SPI control interface
GCI interface
80 dB dynamic range TX/RX
Line voltage monitor
Loop current monitor
+6 dBm or +3.2 dBm TX/RX level mode
Parallel handset detection
3 µA on-hook line monitor current
Overload detection
Programmable line interface
   AC termination
   DC termination
   Ring detect threshold
   Ringer impedance