DATA SHEET
PMC-960924
ISSUE 5
PM5350 S/UNI-ULTRA
SATURN USER NETWORK INTERFACE
1 FEATURES
• Single chip ATM User-Network Interface operating at 155.52 and 51.84
Mbit/s.
• Provides an Analog Edge Interface that can be selected to interface directly
with Category-5 Unshielded Twisted Pair (UTP-5) or Shielded Twisted Pair
cables, or to interface with Pseudo-ECL (PECL) optical data links (ODLs),
using a minimum of passive components.
• Implements the ATM Forum User Network Interface Specification and the
ATM physical layer for Broadband ISDN according to CCITT
Recommendation I.432.
• Processes duplex 155.52 Mbit/s STS-3c/STM-1 (direct interface to a twisted
pair cable or PECL interface to a PMD device) or 51.84 Mbit/s STS-1 (PECL
interface to a PMD device only) data streams with on-chip clock and data
recovery and clock synthesis.
• Performs clock recovery and clock synthesis using on-chip loop filters.
• Provides Saturn Compliant Interface - PHYsical layer (SCI-PHY™) FIFO
buffers in both transmit and receive paths with parity support. Compatible with
ATM Forum Utopia Level 1 specification.
• Inserts and extracts the generic flow control (GFC) bits via a simple serial
interface and provides a transmit XOFF function to allow for local flow control.
• Provides a generic 8-bit microprocessor bus interface for configuration,
control, and status monitoring.
• Low power, +5 Volt, CMOS technology.
• 128 pin high performance plastic quad flat pack (PQFP) 14 mm x 20 mm
package.
The receiver section:
• Provides a serial interface at 155.52 or 51.84 Mbit/s.
• Adaptively equalizes the received differential signal.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 1