Le58QL022
Description
The Le58QL022 Quad Low Voltage Subscriber Line AudioProcessing Circuit (QLSLAC™) devices integrate the key functions of analog line cards into high-performance, veryprogrammable, four-channel codec-filter devices.
Key Features
- Low-power, 3.3 V CMOS technology with 5 V tolerant digital inputs
- Performs the functions of four codec/filters
- Software programmable
- Standard microprocessor interface
- A-law, µ-law, or linear coding
- Single or Dual PCM ports available
- Up to 128 channels (PCLK at 8.192 MHz) per PCM port - Optional supervision on the PCM highway
- Built-in test modes with loopback, tone generation, and µP access to PCM data
- Mixed state (analog and digital) impedance scaling
- Performance guaranteed over a 12 dB gain range
