LE58QL061中文资料Codec/Filter SLAC Device数据手册Microchip规格书

描述 Description

Microchip's cost-effective, software-programmable solution is the Le58QL02/021/031 QLSLAC and the Le58QL061/063 QLSLAC line of DSP-based voice codec/filters. The four-channel QLSLAC devices handle the analog-to-digital and digital-to-analog conversion, filtering, compression and expansion functions required to interface a telephone's analog voice signals to the digital PCM highway or General Circuit Interface (GCI).

特性 Features

Low-power, 3.3 V CMOS technology with 5 V tolerant digital inputs
Pin programmable PCM/MPI or GCI interface
Software and coefficient compatible to the Le79Q061/ 063 QSLAC device
Standard PCM/microprocessor interface (PCM/MPI mode)
• Single or Dual PCM ports available
• Time slot assigner (up to 128 channels per port)
• Clock slot and transmit clock edge options
• 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
• µP access to PCM data
• Real Time Data with interrupt (open drain or TTL)
• Broadcast mode
General Circuit Interface (GCI mode)
• Control and PCM data on a single port
• 2.048 Mbits/s data rate
• 2.048 MHz or 4.096 MHz clock option
Performs the functions of four codec/filters
Software programmable
• SLIC device input impedance and Transhybrid balance
• Transmit and receive gains and Equalization
• Programmable Digital I/O pins with debouncing
A-law, µ-law, or linear coding
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
Supports multiplexed SLIC device outputs
256 kHz or 293 kHz chopper clock for SLIC devices with switching regulator
Maximum channel bandwidth for V.90 modems

简介

LE58QL061属于集成电路（IC）的电信。由制造生产的LE58QL061电信电信接口集成电路 (IC) 为通信网络接口提供特定功能和控制，例如以太网切换、线路驱动器、ISDN、放大器、通道扩展器、数字锁相环、DTMF、音频发生器和解码器、回声消除、检测器和发生器、DDA、电话线路监控器和主叫号码标识。