Top

E1 Quad Transceiver

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Key Features

  • Four Complete E1 (CEPT) PCM-30/ISDN-PRI Transceivers
  • Pin Compatible with the DS21Q50
  • Long-Haul and 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) LQFP Package

Applications/Uses

  • DSLAM Backplane
  • IMA and WAN Equipment
  • Routers/Switches

Description

The DS21Q59 E1 quad transceiver contains all the necessary functions for connecting to four E1 lines. The DS21Q59 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, 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.

Simplified Block Diagram

DS21Q59: Block Diagram DS21Q59: Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .