CY7B951_06 Datasheet, PDF (1/10 Pages) Cypress Semiconductor – Local Area Network ATM Transceiver

CY7B951
Local Area Network ATM Transceiver
Features
• SONET/SDH and ATM Compatible
• Compatible with PMC-Sierra PM5345 SUNI™
• Clock and data recovery from 51.84- or 155.52-MHz
datastream
• 155.52-MHz clock multiplication from 19.44-MHz source
• 51.84-MHz clock multiplication from 6.48-MHz source
• ±1% frequency agility
• Line Receiver Inputs: No external buffering required
• Differential output buffering
• • 100K ECL compatible I/O
• No output clock “drift” without data transitions
• Link Status Indication
• Loopback testing
Logic Block Diagram
• Single +5V supply
• 24-pin SOIC
• Compatible with fiber optic modules, coaxial cable, and
twisted pair media
• No external PLL components
• Power down options to minimize power or crosstalk
• Low operating current: <65 mA
• 0.8 µ BiCMOS
• Pb-Free Packages Available
Functional Description
The Local Area Network ATM Transceiver is used in
SONET/SDH and ATM applications to recover clock and data
information from a 155.52-MHz or 51.84-MHz NRZ or NRZI
serial data stream and to provide differential data buffering for
the Transmit side of the system.
Pin Configuration
Figure 1. SONET/SDH and ATM Interface
Cypress Semiconductor Corporation
Document Number: 38-02010 Rev. *A
• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Revised October 26, 2006