Datasheet > MAX3270EMH

MAX3270EMH

更新时间： 2024-10-02 22:58:03

品牌	Logo	应用领域
美信 - MAXIM		时钟
页数	文件大小	规格书
12页	103K
描述
155Mbps/622Mbps Clock Recovery and Data Retiming IC with Fully Integrated Phase/Frequency Detector

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数据手册

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MAX3270EMH 数据手册

19-0379; Rev 0; 3/95

1 5 5 Mb p s /6 2 2 Mb p s Clo c k Re c o ve ry a n d

Da t a Re t im in g IC w it h Fu lly In t e g ra t e d

P h a s e /Fre q u e n c y De t e c t o r

MAX3270

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

The MAX3270 is a complete Clock Recovery and Data

Retiming IC for 155Mbps and 622Mbps SDH/SONET

and ATM applications. The MAX3270 meets Bellcore

and CCITT jitter tolerance specifications ensuring error-

fre e d a ta re c ove ry. Re c ove re d c loc k a nd d a ta a re

phase aligned using a fully integrated phase-locked

loop (PLL). An output frequency monitor (FM) is includ-

ed to detect loss of PLL acquisition or a loss of input

data.

♦ Supports Both 155Mbps and 622Mbps Clock

Recovery and Data Retiming

♦ Fully Integrated Phase/Frequency Detector

♦ Capable of Switching to an External Clock

♦ Differential 100K ECL Data and Clock I/Os

♦ Output Monitor Provides Lock Detection

♦ No External Reference Clock Required

The MAX3270 has differential ECL input and output

interfaces, so it is less susceptible to noise in a high-

fre q ue nc y e nvironme nt. The fully inte g ra te d PLL

includes an integrated phase-frequency detector that

eliminates the need for external references.

______________Ord e rin g In fo rm a t io n

________________________Ap p lic a t io n s

PART

TEMP. RANGE

PIN-PACKAGE

155Mbps (STM-1/OC-3)/622Mbps (STM-4/

OC-12) SDH/SONET Transmission Systems

MAX3270EMH

-40°C to +85°C

44 MQFP

155Mbps/622Mbps ATM/SONET Access Nodes

Add/Drop Multiplexers

Cross-Connects

Pin Configuration appears at end of data sheet.

___________________________________________________Typ ic a l Op e ra t in g Circ u it

-2V

-4.5V

450Ω

+5V

50Ω

11 39 17 19 38

16 15

24 27

SDIP

RDOP

RDON

50Ω

RCOP

RCON

-2V

SDIN

PHADJ

CRP

50Ω

MAX3270

FILP

FILG

2.2µF

20Ω

EXCS

-2V

CRS

RST

FILN

+5V

2.2µF

EXC

35 36 22 21 34

50Ω

-4.5V

DIGITAL

SUPPLY

-2V

BYPASS SUPPLIES WITH 0.1µF AND 0.01µF CAPACITORS.

DECOUPLE AVEE1, AVEE2, AND GVEE SUPPLY PINS.

EXCS AND CRS ARE CONNECTED FOR

622Mbps OPERATION.

-4.5V

ANALOG SUPPLY

________________________________________________________________ Maxim Integrated Products

Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .

12 3 4 5 6 7...12

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与MAX3270EMH相关器件

型号	品牌	获取价格	描述	数据表
MAX3271	MAXIM	获取价格	+3.3V, 2.5Gbps Low-Power Transimpedance Amplifier
MAX3271D	MAXIM	获取价格	+3.3V, 2.5Gbps Low-Power Transimpedance Amplifier
MAX3271E	MAXIM	获取价格	+3.3V, 2.5Gbps Low-Power Transimpedance Amplifier
MAX3271EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX3271
MAX3271W	MAXIM	获取价格	+3.3V, 2.5Gbps Low-Power Transimpedance Amplifier
MAX3272	MAXIM	获取价格	+3.3V, 2.5Gbps Low-Power Limiting Amplifiers
MAX3272	ADI	获取价格	+3.3V、2.5Gbps低功耗限幅放大器
MAX3272A	MAXIM	获取价格	+3.3V, 2.5Gbps Low-Power Limiting Amplifiers
MAX3272A	ADI	获取价格	+3.3V、2.5Gbps低功耗限幅放大器
MAX3272AEGP	MAXIM	获取价格	+3.3V, 2.5Gbps Low-Power Limiting Amplifiers

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