CS61304A

T1/E1 Line Interface Unit for CPE/ISDN Primary Rate Interface

Overview

Power Supply (V)	Control Modes	Line Coders	Number of Channels	TBR-12 Compliant	Impedance Matching Line Driver	Package
5	Host, H/W & Extended H/W	AMI, B8ZS & HDB3	1		—	28 PDIP 28 PLCC

Description

The CS61304A combines the complete analog transmit-and-receive line interface for T1 or E1 applications in a low-power, 28-pin device operating from a 5 V supply. The CS61304A is a pin-compatible replacement for the LXT304A.

The receiver uses a digital DLL (delay-locked loop) that is continuously calibrated from a crystal reference to provide stability and jitter tolerance. The CS61304A has a receiver jitter attenuator optimized for T1 CPE (customer premise equipment) applications subject to AT&T 62411 and E1 ISDN primary rate interface (PRI) applications. The transmitter features internal pulse shaping and a low-impedance output stage, allowing the use of external resistors for transmitter impedance matching.

Features

• Provides an analog transmission line interface for T1/E1 applications
• Provides line driver, jitter attenuator and clock recovery functions
• Fully compliant with AT&T 62411 Stratum® 4, Type II jitter requirements
• Low-power consumption
• B8ZS/HDB3/AMI encoder/decoder
• 50 mA transmitter short-circuit current limiting
• Package: 28-pin PLCC; lead-free assembly

Diagram