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ZL30415

更新时间： 2024-11-03 22:41:11

品牌	Logo	应用领域
加拿大卓联 - ZARLINK		时钟
页数	文件大小	规格书
23页	349K
描述
SONET/SDH Clock Multiplier PLL

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ZL30415 数据手册

ZL30415

SONET/SDH Clock Multiplier PLL

Data Sheet

November 2004

Features

•

Meets jitter requirements of Telcordia GR-253-

CORE for OC-12, OC-3, and OC-1 rates

Ordering Information

Meets jitter requirements of ITU-T G.813 for STM-

4, and STM-1 rates

ZL30415GGC

64 Ball CABGA

Provides one differential LVPECL output clock

selectable to 19.44 MHz, 38.88 MHz, 77.76 MHz,

155.52 MHz, or 622.08 MHz

-40°C to +85°C

Description

•

Provides a single-ended CMOS output clock at

19.44 MHz

The ZL30415 is an analog phase-locked loop (APLL)

designed to provide jitter attenuation and rate

conversion for SDH (Synchronous Digital Hierarchy)

and SONET (Synchronous Optical Network)

networking equipment. The ZL30415 generates low

jitter output clocks that meet the jitter requirements of

Telcordia GR-253-CORE OC-12, OC-3, OC-1 rates

and ITU-T G.813 STM-4 and STM-1 rates.

Accepts a single-ended CMOS reference at

19.44 MHz or a differential LVDS, LVPECL, or

CML reference at 19.44 MHz or 77.76 MHz

•

Provides a LOCK indication

3.3 V supply

Applications

The ZL30415 accepts a CMOS compatible reference

at 19.44 MHz or a differential LVDS, LVPECL, or CML

reference at 19.44 MHz or 77.76 MHz and generates a

differential LVPECL output clock selectable to

19.44 MHz, 38.88 MHz, 77.76 MHz, 155.52 MHz, or

622.08 MHz, and a single-ended CMOS clock at

19.44 MHz. The ZL30415 provides a lock indication.

•

SONET/SDH line cards

LPF

REF_SEL

FS3 FS2 FS1

C19o, C38o, C77o,

C155o, C622o,

LVPECL output

C19i

Frequency

& Phase

Loop

Filter

VCO

Reference

Selection

MUX

OC-CLKoP/N

C19o

Frequency

Dividers

and

Clock

Drivers

Detector

REFinP/N

19.44 MHz and 77.76 MHz

Reference

and

Bias Circuit

C19i or C77i

State

Machine

CML, LVDS,

LVPECL input

REF_FREQ

LOCK

BIAS

VCC GND VDD

C19oEN

Figure 1 - Functional Block Diagram

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

12 3 4 5 6 7...23

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