Datasheet > XRT7296_10

XRT7296_10

更新时间： 2022-04-10 04:11:15

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
2页	124K
描述
XRT7296 DS3 STS-1 E3 Integrated Line Transmitter

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XRT7296 DS3 STS-1 E3 Integrated Line Transmitter

General Description:

The XRT7296 is a fully integrated PCM Line Driver IC intended for

DS3 (44.736Mbps) or E3(34.368Mbps) applications. It can also be

used for transmitting SONET STS-1 (51.84Mbps) signals over

coaxial cable. The IC is designed to complement either XRT7295

DS3/SONET STS-1 or XRT7295E E3 Integrated Line Receivers. The

XRT7296 converts input clock and dual-rail unipolar data into AMI

pulses according to AT&T Technical Advisory No. 34 or CCITT G.703

recommendations.

The device provides B3ZS (DS3) or HDB3 (E3) encoding functions for data to be transmitted to the line. A

complimentary decoder circuit is also included in the chip for decoding received signals from an external

line receiver. Both encoder and decoder functions can be disabled independently through external control

pins. In the receive direction, coding errors and bipolar violations are detected and flagged at an output

pin.

On-chip pulse shaper circuitry eliminates normally required external components for line equalization to

meet the cross-connect template. For system level trouble-shooting and testing, both local and remote

loop-backs are possible with the built-in loop-back circuit.

The XRT7296 is manufactured using BiCMOS

technology and is packaged in a 28-pin PDIP or SOJ

packages. The device requires a single 5V power

supply and consumes a maximum power of 700mW.

(Line current feed + device dissipation).

Key Features:



Fully Integrated Transmit Interface for

DS3/E3/STS-1

Integrated Pulse Shaping Circuit

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