Datasheet > 78P2351-IGT/A04

78P2351-IGT/A04

更新时间： 2024-01-29 21:52:01

品牌	Logo	应用领域
东电化 - TDK		/
页数	文件大小	规格书
40页	424K
描述
Digital Transmission Interface, CMOS, PQFP100

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技术参数
数据手册

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78P2351-IGT/A04 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.61	Base Number Matches：	1

78P2351-IGT/A04 数据手册

78P2351

Single Channel

OC-3/ STM1-E/ E4 LIU

PRELIMINARY DATASHEET

FEBRUARY 2004

DESCRIPTION

FEATURES

The 78P2351 is TDK’s second generation Line

Interface Unit (LIU) for 155 Mbit/s SDH/SONET (OC-

3, STS-3, or STM-1) and 140Mbit/s PDH (E4)

applications. The device is a 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 module using NRZ coding.

The 78P2351 is compliant with all respective ANSI,

ITU-T, and Telcordia standards for jitter tolerance,

generation, and transfer.

•

G.703 compliant, adjustable 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 15dB of cable loss

Serial, LVPECL-compatible system interface

with integrated CDR in transmit path for flexible

NRZ to CMI conversion.

4-bit parallel CMOS system interface with

master/slave Tx clock modes.

Selectable LVPECL compatible NRZ line

interface for 155.52 Mbps optical transmission.

Configurable via HW control pins or 4-wire serial

port interface

Optional fixed backplane equalizer compensates

for up to 1.5m of trace

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.

Loss of Lock (LOL) and standards compliant

Loss of Signal (LOS) detection.

Receive Monitor Mode handles up to 20dB of

flat loss (at max 6dB cable loss)

Operates from a single 3.3V supply

100-pin JEDEC LQFP

•

APPLICATIONS

•

Central Office Interconnects

DSLAMs

Add Drop Multiplexers (ADMs)

PDH/SDH test equipment

Multi Service Switches

•

BLOCK DIAGRAM

Lock Detect

Tx CDR

ECLP/N

TXCKP/N

SIDP/N

FIFO

CMI

Encoder

CMI2P/N

CMIP/N

SICKP/N

PICK

PI[3:0]D

PTOCK

PMOD, SMOD[1:0], PAR

RLBK,

RDSL

SOCKP/N

SODP/N

CMI

Rx CDR

Decoder

Adaptive

Eq.

RXP/N

PO[3:0]D

POCK

Lock Detect

LOS Detect

CMI

LLBK

12 3 4 5 6 7...40

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