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XRT7295AT

更新时间： 2024-11-08 22:11:11

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
18页	1035K
描述
DS3/Sonet STS-1 Integrated Line Receiver

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XRT7295AT 数据手册

XRT7295AT

DS3/Sonet STS-1

Integrated Line Receiver

December 2000-2

FEATURES

APPLICATIONS

D Fully Integrated Receive Interface for DS3 and

D Interface to DS-3 Networks

D Digital Cross-Connect Systems

D CSU/DSU Equipment

STS-1 Rate Signals

D Integrated Equalization (Optional) and Timing

Recovery

D PCM Test Equipment

D Loss-of-Signal and Loss-of-Lock Alarms

D Variable Input Sensitivity Control

D Fiber Optic Terminals

D 5V Power Supply

D Pin Compatible with XRT7295AE and XRT7295AC

D Companion Device to T7296 Transmitter

GENERAL DESCRIPTION

The XRT7295AT DS3/SONET STS-1 integrated line

receiver is a fully integrated receive interface that

terminates a bipolar DS3 (44.736Mbps) or Sonet STS-1

(51.84Mbps) signal transmitted over coaxial cable. (See

Figure 13).

settings, to adapt longer cables. High input sensitivity

allows for significant amounts of flat loss within the

system. Figure 1 shows the block diagram of the device.

The XRT7295AT device is manufactured using linear

CMOS technology. The XRT7295AT is available in a

20-pin plastic SOJ package for surface mounting.

The device also provides the functions of receive

equalization (optional), automatic-gain control (AGC),

clock-recovery and data retiming, loss-of-signal and

loss-of-frequency-lock detection. The digital system

interface is dual-rail, with received positive and negative

1s appearing as unipolar digital signals on separate

output leads. The on-chip equalizer is designed for cable

distances of 0 to 450ft. from the cross-connect frame to

the device. The receive input has a variable input

sensitivity control, providing three different sensitivity

Two versions of the chip are available, one is for either

DS3 or STS-1 operation (the XRT7295AT, this data

sheet), and the other is for E3 operation(the XRT7295AE,

refer to the XRT7295AE data sheet). Both versions are

pin compatible.

For either DS3 or STS-1, an input reference clock at

44.736MHz or 51.84MHz provides the frequency

reference for the device.

ORDERING INFORMATION

Operating

Part No.

Package

20 Lead 300 Mil JEDEC SOJ

Temperature Range

XRT7295ATIW

-40°C to + 85°C

Rev. 1.20

E2000

EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z FAX (510) 668-7017

12 3 4 5 6 7...18

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与XRT7295AT相关器件

型号	品牌	获取价格	描述	数据表
XRT7295AT_10	EXAR	获取价格	DS3 SONET STS1 Integrated Line Receiver
XRT7295ATIW	EXAR	获取价格	DS3/Sonet STS-1 Integrated Line Receiver
XRT7295ATIW-F	EXAR	获取价格	DS3 SONET STS1 Integrated Line Receiver
XRT7295E	EXAR	获取价格	INTEGRATED LINE RECEIVER
XRT7295E	PULSE	获取价格	T3/DS3/E3/STS-1 TRANSFORMERS
XR-T7295E	EXAR	获取价格	INTEGRATED LINE RECEIVER
XR-T7295E-1EIP	EXAR	获取价格	INTEGRATED LINE RECEIVER
XR-T7295E-1EIW	EXAR	获取价格	INTEGRATED LINE RECEIVER
XR-T7295IP	EXAR	获取价格	DS3/Sonet STS-1 Integrated Line Receiver
XR-T7295IW	EXAR	获取价格	DS3/Sonet STS-1 Integrated Line Receiver