概览

优势和特点

  • 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

产品详情

应用

  • 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

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