Datasheet > 电信电路 > ATM/SONET/SDH 集成电路> 70P2352-IGTR

70P2352-IGTR

更新时间： 2024-01-17 12:58:22

品牌	Logo	应用领域
TERIDIAN		/
页数	文件大小	规格书
42页	754K
描述
Dual Channel OC-3/ STM1-E/ E4 LIU

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70P2352-IGTR 数据手册

78P2352

Dual Channel

OC-3/ STM1-E/ E4 LIU

DATA SHEET

SEPTEMBER 2006

DESCRIPTION

FEATURES

The 78P2352 is Teridian’s second generation Line

Interface Unit (LIU) for 155 Mbps SDH/SONET

(OC-3, STS-3, or STM-1) and 140 Mbps PDH (E4)

telecom interfaces. The device is a dual channel,

single chip solution that includes an integrated CDR

in the transmit path for flexible NRZ to CMI

conversion. The device can interface to 75Ω coaxial

cable using CMI coding or directly to a fiber optics

•

ITU-T G.703 compliant cable driver for 139.264

Mbps or 155.52 Mbps CMI-coded coax

transmission

•

Integrated adaptive CMI equalizer and CDR in

receive path handles over 12.7dB of cable loss

Serial, LVPECL system interface with integrated

CRU in transmit path for flexible NRZ to CMI

conversion.

transceiver module using NRZ coding.

The

•

4-bit parallel CMOS system interface with

master and slave Tx clock modes.

78P2352 is compliant with all respective ANSI, ITU-

T, and Telcordia standards for jitter tolerance,

generation, and transfer.

Selectable LVPECL compatible NRZ media

interface for 155.52 Mbps optical transmission.

Configurable via HW control pins or 4-wire serial

port interface

APPLICATIONS

Compliant with ANSI T1.105.03-1994; ITU-T

G.751, G.813, G.823, G.825, G.958; and

Telcordia GR-253-CORE for jitter performance.

Receiver Loss of Signal (LOS) detection

compatible with ITU-T G.783

•

Central Office Interconnects

DSLAMs

Add Drop Multiplexers (ADMs)

Multi Service Switches

Digital Microwave Radios

•

Operates from a single 3.3V supply

Standard and thermally enhanced 128-pin

JEDEC LQFP package options

BLOCK DIAGRAM

EACH CHANNEL: Tx

Lock Detect

ECLxP/N

Tx CDR

SIxDP/N

TXxCKP/N

FIFO

CMI

Encoder

SIxCKP/N

CMIxP/N

PIxCK

PIx[3:0]D

PTOxCK

PMOD, SMOD[1:0], PAR

RLBK

SOxCKP/N

SOxDP/N

CMI

Rx CDR

Decoder

Adaptive

Eq.

RXxP/N

POx[3:0]D

POxCK

Lock Detect

LOS Detect

CMI

LLBK

EACH CHANNEL: Rx

Page: 1 of 42

2006 Teridian Semiconductor Corporation

Rev. 2.4

12 3 4 5 6 7...42

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