DS21Q58数据手册集成电路（IC）的电信规格书PDF

描述 Description

The DS21Q58 E1 quad transceiver contains all the necessary functions for connecting to four E1 lines. The DS21Q58 is a direct replacement for the DS21Q50, with the addition of signaling access and improved interrupt handling. It is composed of a line interface unit (LIU), framer, and a TDM backplane interface, and is controlled through an 8-bit parallel port configured for Intel or Motorola bus operations or serial port operation.

特性 Features

• Four Complete E1 (CEPT) PCM-30/ISDN-PRI Transceivers
• Pin Compatible with the DS21Q50 and DS21Q59
• Short-Haul Line Interfaces
• 32-Bit or 128-Bit Crystal-Less Jitter Attenuator
• Frames to FAS, CAS, and CRC4 Formats
• CAS/CCS Signaling Support
• 4MHz/8MHz/16MHz Clock Synthesizer
• Flexible System Clock with Automatic Source Switching on Loss-of-Clock Source
• Two-Frame Elastic-Store Slip Buffer on the Receive Side
• Interleaving PCM Bus Operation Up to 16.384MHz
• Configurable Parallel and Serial Port Operation
• Detects and Generates Remote and AIS Alarms
• Fully Independent Transmit and Receive Functionality
• Four Separate Loopback Functions
• PRBS Generation/Detection/Error Counting
• 3.3V Low-Power CMOS
• Large Counters for Bipolar and Code Violations, CRC4 Codeword Errors, FAS Word Errors, and E Bits
• Eight Additional User-Configurable Output Pins
• 100-Pin (14mm x 14mm) LQFP Package

应用 Application

• 上/下路复用器
• 局端设备
• 用户授权设备
• DSLAM背板
• IMA
• 线卡
• PBX
• 路由器/交换机
• 路由器/交换机
• 定时系统
• WAN接口

简介

DS21Q58属于集成电路（IC）的电信。由制造生产的DS21Q58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。