Datasheet > TQ8103

TQ8103

更新时间： 2024-11-09 22:19:15

品牌	Logo	应用领域
TRIQUINT		时钟
页数	文件大小	规格书
9页	198K
描述
622 Mb/s Clock & Data Recovery

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中文翻译

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数据手册

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TQ8103 数据手册

S E M I C O N D U C T O R , I N C .

The TQ8103 is a monolithic clock and data recovery (CDR) IC that receives

NRZ data, extracts the high-speed clock, and presents the separated data

and clock as its outputs. This device is designed specifically for SONET

OC-12 and SDH STM-4 applications at 622 Mb/s.

TQ8103

622 Mb/s Clock

& Data Recovery

Its on-chip phase-locked loop (PLL) generates a stable 622.08 Mb/s

reference based upon an external 38.88 MHz TTL reference. The PLL is

based on a VCO constructed from integrated reactive components, which

form a low-jitter, high-Q differential tank circuit. Both frequency- and

phase-detect circuits reliably acquire and hold lock in worst-case SONET

jitter conditions and scrambling patterns. The lock-detect circuitry signals

when the CDR acquires frequency lock.

Features

• Single-chip CDR circuit for

622 Mb/s data

• Exceeds Bellcore and ITU jitter

tolerance maps

Typical SONET/SDH system applications for the TQ8103 include:

• Single-ended ECL input has loop-

through path for external 50 ohm

termination to minimize stubs

and reflections

• Transmission system transport cards

• Switch and cross-connect line cards

• ATM physical layer interfaces

• Test equipment

• Clock and data outputs are

differential ECL

• Add/drop multiplexers

• Provides complete high-speed

OC-12/STM-4 solution when

used with TQ8101 or TQ8105

Mux/Demux/Framer/PLL

Figure 1. Typical Application

1000 pF

10KΩ

• External loop filter requires

simple passive network

50Ω

•

Maintains clock in absence of data

V_TT

SINO

D_OUTP

D_OUTN

• 28-pin leaded chip carrier

ECL data in

(single-ended)

SINI

• Can be used with a high-speed

external clock

50Ω

V_REF

V_TT

CK_OUTP

CK_OUTN

38.88-MHz TTL

clock oscillator

CKREF

20KΩ

62Ω

V_TT

1mF

1000 pF

For additional information and latest specifications, see our website: www.triquint.com

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