Datasheet > 78P2352-IEL/A04

78P2352-IEL/A04

更新时间： 2024-02-18 01:45:45

品牌	Logo	应用领域
东电化 - TDK		/
页数	文件大小	规格书
41页	431K
描述
Telecom IC,

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技术参数
数据手册

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78P2352-IEL/A04 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.6	Base Number Matches：	1

78P2352-IEL/A04 数据手册

78P2352

Dual Channel

OC-3/ STM1-E/ E4 LIU

PRELIMINARY DATASHEET

FEBRUARY 2004

DESCRIPTION

FEATURES

The 78P2352 is TDK’s second generation Line

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

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

applications. 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 module using

NRZ coding. The 78P2352 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 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

Standard and thermally enhanced 128-pin

JEDEC LQFP

•

APPLICATIONS

•

Central Office Interconnects

DSLAMs

Add Drop Multiplexers (ADMs)

Multi Service Switches

•

BLOCK DIAGRAM

EACH CHANNEL: Tx

Lock Detect

Tx CDR

ECLxP/N

TXxCKP/N

SIxDP/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

12 3 4 5 6 7...41

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