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
 TIP/RING polarity detection
 Integrated codec and 2- to 4-wire
analog hybrid
 Programmable digital hybrid for
near-end echo reduction
 Polarity reversal detection
 Programmable digital gain in 0.1 dB
increments
 Integrated ring detector
 Type I and II caller ID support
 Pulse dialing support
 3.3 V power supply
 Daisy-chaining for up to 16 devices
 Greater than 5000 V isolation
 Patented isolation technology
 Ground start and loop start support
 Available in Pb-free RoHS-compliant
packages