DS21455

Quad T1/E1/J1 Transceivers

Industry's First 4-Port Transceivers to Switch Among All T1, E1, and J1 Standards without External Component Changes

Viewing:

Part Details

Four Independent Transceivers, Each Having the Following Features:

Complete T1 (DS1)/ISDN-PRI/J1 Transceiver Functionality
Complete E1 (CEPT) PCM-30/ISDN-PRI Transceiver Functionality
Short- and Long-Haul Line Interface for Clock/Data Recovery and Waveshaping
CMI Coder/Decoder
Crystal-Less Jitter Attenuator
Fully Independent Transmit and Receive Functionality
Dual HDLC Controllers
On-Chip Programmable BERT Generator and Detector
Internal Software-Selectable Receive- and Transmit-Side Termination Resistors for 75Ω/100Ω/120Ω T1 and E1 Interfaces
Dual Two-Frame Elastic-Store Slip Buffers that can Connect to Asynchronous Backplanes Up to 16.384MHz
16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to Recovered Network Clock
Programmable Output Clocks for Fractional T1, E1, H0, and H12 Applications
Interleaving PCM Bus Operation
8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola
IEEE 1149.1 JTAG-Boundary Scan
3.3V Supply with 5V Tolerant Inputs and Outputs
DS21455 Directly Replaces DS21Q55
Signaling System 7 (SS7) Support
RAI-CI, AIS-CI Support