VE8820
FEATURES
- plete BORSCHT Function for Two Channels in a Single Voice Port™ chipset
- Battery Feed, Over-voltage support, integrated Ringing, line Supervision, Codec, Hybrid (2 W/4 W), Test
- Integrated Power Management
- Integrated high voltage switching regulator controllers
- Wide input voltage range (VSW =+3.3 V to +35 V)
- Switching power supply tracks line voltage minimizing active & ringing state power dissipation
- Low power Idle and On-hook transmission states
- Worldwide Programmability
- Two-wire AC impedance, Balance Impedance, Gain
- DC feed voltage and current limit
- Ringing frequency, voltage and current limit
- 12 k Hz and 16 k Hz Metering
- Programmable loop closure and ring trip thresholds
- Ringing
- 5 REN
- Up to 140-Vpk internal balanced sinusoidal or trapezoidal ringing with programmable DC offset
- Unbalanced ringing for PBX trunk patibility
- Powerful Signal Generator
- Universal Caller ID generation
- Up to 4 simultaneous tones
- Automatic cadencing feature
-...
