Le58QL022 - Zarlink

Le58QL022 Quad Low Voltage Subscriber Line Audio-Processing Circuit

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. The QLSLAC devices are based on the proven design of Legerity’s reliable SLAC™ device families. The advanced architecture of the QLSLAC devices im.

Features

„ Low-power, 3.3 V CMOS technology with 5 V tolerant digital inputs „ Software and coefficient compatible 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 a.