Datasheet > 78P2351R-IM/A04R

78P2351R-IM/A04R

更新时间： 2024-01-05 14:55:19

品牌	Logo	应用领域
TERIDIAN		/
页数	文件大小	规格书
29页	342K
描述
Telecom IC,

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技术参数
数据手册

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78P2351R-IM/A04R 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.82

78P2351R-IM/A04R 数据手册

78P2351R

155M NRZ to

CMI Converter

PRELIMINARY DATASHEET

FEBRUARY 2004

DESCRIPTION

FEATURES

The 78P2351R is TDK’s second generation Line

Interface Unit (LIU) for 155 Mbit/s electrical SDH

interfaces (STM1e). The device is a single chip

solution that includes an integrated Clock & Data

Recovery in the transmit path for easy, cost efficient

NRZ to CMI conversion.

•

G.703 compliant, adjustable cable driver for

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

The device interfaces to 75Ω coaxial cable through

wideband transformers and can handle over 15dB of

cable loss.

By integrating CDR capabilities in the transmit path,

the small 78P2351R (7x7mm MLF package) is also

ideal for new STM1e Small Form-factor Pluggable

(SFP) modules.

•

Configurable via HW control pins or 4-wire serial

port interface

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

G.813, G.825, G.958; and Telcordia GR-253-

CORE for jitter performance

•

Provides G.783 compliant Loss of Signal (LOS)

detection

Receive Monitor Mode handles up to 20dB of

flat loss (at max 6dB cable loss)

APPLICATIONS

Optional fixed backplane equalizer compensates

for up to 1.5m of trace

•

STM1e SFP modules

SDH/ATM Line Cards

•

Operates from a single 3.3V supply

Available in a small 7x7mm 56-pin QFN

package

Add Drop Multiplexers (ADMs)

PDH/SDH test equipment

•

Industrial Temperature: -40˚C to +85˚C

BLOCK DIAGRAM

78P2351R

75ohm Coax

(CMI Encoded)

Tx Disable

TD +

TD -

Fixed

Eq.

CDR

LVPECL Data

(NRZ Encoded)

CMI

ENDEC

RD +

RD -

Adaptive

Eq.

CDR

Rx LOS

12 3 4 5 6 7...29

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