DESCRIPTION
The 78P2241 is a line interface transceiver IC for E3, DS3, STS-1, NA T3 and ATM applications. It includes clock recovery and transmitter pulse shaping functions for applications using 75-ohm coaxial cable at distances up to 1100 feet. These applications include DSLAMs, T3/E3 digital multiplexers, SONET Add/Drop multiplexers, PDH equipment, DS3 to Fiber optic and microwave modems and ATM WAN access for routers and switches.

FEATURES
• Single chip transmit and receive interface for
   E3, DS3 and STS-1 applications.
• Interface to 75 ohm coaxial cable over 1100
   feet at speeds up to 51.84 Mbps.
• Compliant with ANSI T1.102-1993, Telcordia
   GR-499-CORE and GR-253-CORE, ITU-T
   G.703 and G.823 for jitter tolerance.
• Compliant with ATM FORUM af-phy-0034 (E3
   public UNI) and af-phy-0054 (DS3 public UNI).
• Easily Interfaced to ATM framer ICs such as
   PMC 7345 , 7346 QJET and 7321.
• Unique clock recovery requires no reference
   clock or crystal oscillator.
• Receive DS3-high and DSX3 monitor signals
• Includes diagnostic loop-back for AMI and
   digital signals.
• Includes a selectable B3ZS/HDB3 ENDEC.
• Pin compatible to 78P7200 (28-lead PLCC).
• 28-lead PLCC and 48-lead TQFP packages
• 3.3 or 5 V operation, ICC<95mA
• Input circuit works either Transformer or
   Capacitor coupled