LE88241
Description
Legerity's dual-channel Le88221/241 Automatic Battery Switching (ABS) VoicePort™ device implements a dualchannel telephone line interface by providing all the necessary voice interface functions from the high voltage subscriber line to the µP/DSP digital interface.
Key Features
- Battery Feed, Over-voltage support, integrated Ringing, line Supervision, Codec, Hybrid (2W/4W), Test
- Small footprint package
- Exposed pad 80-pin LQFP
- Low power Idle and On-hook transmission states Ringing
- Up to 110-Vpk internal balanced sinusoidal or trapezoidal ringing with programmable DC offset
- Unbalanced ringing for PBX trunk patibility (Le88241 device) Pin selectable PCM/MPI or GCI interface Worldwide Programmability
- Two-wire AC impedance, Balance Impedance, Gain
- DC feed voltage and current limit
- Ringing frequency, voltage and current limit
- 12 kHz and 16 kHz Metering
