Le58QL022
Le58QL022 is Quad Low Voltage Subscriber Line Audio-Processing Circuit manufactured by Zarlink.
Quad Low Voltage Subscriber Line Audio-Processing Circuit VE580 Series
APPLICATIONS
- Codec function on telephone switch line cards
Features
- Low-power, 3.3 V CMOS technology with 5 V tolerant digital inputs
- Software and coefficient patible to the Am79Q02/ 021/031 QSLAC device
- Performs the functions of four codec/filters
- Software programmable:
- SLIC input impedance
- Transhybrid balance
- Transmit and receive gains
- Equalization (frequency response)
- Digital I/O pins
- Programmable debouncing on one input
- Time slot assigner
- Programmable clock slot and PCM transmit clock edge options
- 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
- 1.536, 1.544, 2.048, 3.072, 3.088, 4.096, 6.144, 6.176, or 8.192 MHz master clock derived from MCLK or PCLK
- 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 d B gain range
- Real Time Data register with interrupt (open drain or TTL output)
- Supports multiplexed SLIC device outputs
- Broadcast state
- 256 k Hz or 293 k Hz chopper clock for Legerity SLIC devices with switching regulator
- Maximum channel bandwidth for V.90...
