AD9548

更新时间： 2024-01-26 20:04:04

品牌	Logo	应用领域
亚德诺 - ADI		时钟发生器
页数	文件大小	规格书
112页	1935K
描述
Quad/Octal Input Network Clock Generator/Synchronizer

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

AD9548 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	88
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	1.64
JESD-30 代码：	S-XQCC-N88	JESD-609代码：	e3
长度：	12 mm	湿度敏感等级：	3
端子数量：	88	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
主时钟/晶体标称频率：	1000 MHz	认证状态：	Not Qualified
座面最大高度：	0.9 mm	最大供电电压：	1.89 V
最小供电电压：	1.71 V	标称供电电压：	1.8 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	40
宽度：	12 mm	uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, OTHER
Base Number Matches：	1

AD9548 数据手册

Quad/Octal Input Network Clock

Generator/Synchronizer

AD9548

FEATURES

APPLICATIONS

Supports Stratum 2 stability in holdover mode

Supports reference switchover with phase build-out

Supports hitless reference switchover

Auto/manual holdover and reference switchover

4 pairs of reference input pins with each pair configurable as

a single differential input or as 2 independent single-

ended inputs

Input reference frequencies from 1 Hz to 750 MHz

Reference validation and frequency monitoring (1 ppm)

Programmable input reference switchover priority

30-bit programmable input reference divider

4 pairs of clock output pins with each pair configurable as a

single differential LVDS/LVPECL output or as 2 single-

ended CMOS outputs

Output frequencies up to 450 MHz

30-bit integer and 10-bit fractional programmable feedback

divider

Programmable digital loop filter covering loop bandwidths

from 0.001 Hz to 100 kHz

Optional low noise LC-VCO system clock multiplier

Optional crystal resonator for system clock input

On-chip EEPROM to store multiple power-up profiles

Software controlled power-down

Network synchronization

Cleanup of reference clock jitter

GPS 1 pulse per second synchronization

SONET/SDH clocks up to OC-192, including FEC

Stratum 2 holdover, jitter cleanup, and phase transient

control

Stratum 3E and Stratum 3 reference clocks

Wireless base station controllers

Cable infrastructure

Data communications

GENERAL DESCRIPTION

The AD9548 provides synchronization for many systems,

including synchronous optical networks (SONET/SDH). The

AD9548 generates an output clock synchronized to one of up to

four differential or eight single-ended external input references.

The digital PLL allows for reduction of input time jitter or phase

noise associated with the external references. The AD9548

continuously generates a clean (low jitter), valid output clock

even when all references have failed by means of a digitally

controlled loop and holdover circuitry.

The AD9548 operates over an industrial temperature range of

−40°C to +85°C.

88-lead LFCSP package

FUNCTIONAL BLOCK DIAGRAM

ANALOG

FILTER

STABLE

SOURCE

AD9548

CLOCK DISTRIBUTION

CLOCK

MULTIPLIER

CHANNEL 0

DIVIDER

CHANNEL 1

DIVIDER

DIGITAL

PLL

CHANNEL 2

DIVIDER

DAC

REFERENCE INPUTS

AND

MONITOR MUX

CHANNEL 3

DIVIDER

SYNC

SERIAL CONTROL INTERFACE

STATUS AND

CONTROL PINS

EEPROM

(SPI or I C)

Figure 1.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...112

下载PDF

与AD9548相关器件

型号	品牌	描述	获取价格	数据表
AD9548/PCBZ	ADI	Quad/Octal Input Network Clock Generator/Synchronizer	获取价格
AD9548BCPZ	ADI	Quad/Octal Input Network Clock Generator/Synchronizer	获取价格
AD9548BCPZ-REEL7	ADI	Quad/Octal Input Network Clock Generator/Synchronizer	获取价格
AD9549	ADI	Dual Input Network Clock Generator/Synchronizer	获取价格
AD9549ABCPZ	ADI	Dual Input Network Clock Generator/Synchronizer	获取价格
AD9549ABCPZ-REEL7	ADI	Dual Input Network Clock Generator/Synchronizer	获取价格

产品中心

服务支持

精选活动

关于我们

帮助中心

AD9548

AD9548 技术参数

AD9548 数据手册

与AD9548相关器件

与AD9548相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

AD9548

AD9548 技术参数

AD9548 数据手册

与AD9548相关器件

与AD9548相关文章

您还可以找

您在本页遇到什么问题？