Datasheet > XR81101

XR81101

更新时间： 2024-11-25 01:21:23

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
8页	208K
描述
Universal Clock - High Frequency LVCMOS Clock Synthesizer

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

XR81101 数据手册

XR81101

Universal Clock - High Frequency

LVCMOS Clock Synthesizer

FEATURES

General Description

• XR81101-AA02: Factory configured

The XR81101-AA02 is a clock synthesizer operating at a 3.3V/2.5V sup-

ply with Integer divider, using a 25MHz parallel resonant crystal reference

input provides a 125MHz LVCMOS output. The device is optimized for

use with a 25MHz crystal (or system clock) and generates a 125MHz out-

put clock for GE applications. The LVCMOS output has very low phase

noise jitter of sub 150fs, while consuming extremely low power.

• One LVCMOS output

• Crystal oscillator interface which can also be

overdriven using a single-ended reference clock

• Output frequency: 125MHz

• Crystal/input frequency: 25MHz, parallel resonant

crystal

The application diagram below shows a typical synthesizer configuration

with any standard crystal oscillating in fundamental mode. Internal load

capacitors are optionally available to minimize/eliminate external crystal

loads. A system clock can also be used to overdrive the oscillator for a

synchronous timing system.

• RMS phase jitter @ 125MHz, 1.875MHz - 20MHz:

< 150fs

• Full 3.3V or 2.5V operating supply

• -40°C to 85°C ambient operating temperature

• Lead-free (RoHS 6) package

The typical phase noise plot below shows the jitter integrated over the

1.875MHz to 20MHz range that is widely used in WAN systems. These

clock devices show a very good high frequency noise floor below -150dB.

APPLICATIONS

• Gigabit Ethernet

• Low-jitter Clock Generation

• Synchronized clock systems

The XR81101 is a family of Universal Clock synthesizer devices in

TSSOP-8 packages. The devices generate ANY frequency in the range of

10MHz to 200MHz by utilizing a highly flexible delta sigma modulator and

a wide ranging VCO. These devices can be used with standard crystals or

external system clock to support a wide variety of applications. This family

of products has an extremely low power PLL block with core power con-

sumption 40% less than the equivalent devices from competition. By sec-

ond sourcing several of the existing sockets, these devices provides a

very compelling power efficiency value benefit across all market seg-

ments.

Ordering Information – page 8

Other clock multiplier and/or driver configurations are possible in this

clock family and can be requested from the factory

Typical Application

XR81101ͲAA02

XR81101ꢀPHASEꢀNOISEꢀ(dBc/Hz)

-40db

V_CC

2.5Vꢀorꢀ3.3V

RMS Jitter = 123.6fs

-60db

XTAL_IN

125MHz

Int Range 1.875MHz to 20MHz

-80db

-100db

-120db

-140db

-160db

-180db

25MHz

Enable

XTAL_OUT

V_EE

100Hz

1KHz

10KHz

100KHz

1MHz

10MHz

1 / 8

exar.comXR81101

Rev 1A

12 3 4 5 6 7 8

中文翻译

下载PDF

与XR81101相关器件

型号	品牌	获取价格	描述	数据表
XR81101-AA02-F	EXAR	获取价格	Clock Generator, 125MHz, CMOS, PDSO8, TSSOP-8
XR81101-AA02TR-F	EXAR	获取价格	Clock Generator, 125MHz, CMOS, PDSO8, TSSOP-8
XR81101EVB	EXAR	获取价格	Universal Clock - High Frequency LVCMOS Clock Synthesizer
XR81102	EXAR	获取价格	Universal Clock - High Frequency LVPECL Clock Synthesizer
XR81102-CA02-F	EXAR	获取价格	Universal Clock - High Frequency LVPECL Clock Synthesizer
XR81102-CA02TR-F	EXAR	获取价格	Clock Generator, 125MHz, CMOS, PDSO8, TSSOP-8
XR81102EVB	EXAR	获取价格	Universal Clock - High Frequency LVPECL Clock Synthesizer
XR81111	EXAR	获取价格	Universal Clock - High Frequency LVPECL Clock Synthesizer
XR81111-CA04-F	EXAR	获取价格	Universal Clock - High Frequency LVPECL Clock Synthesizer
XR81111-CA04TR-F	EXAR	获取价格	Clock Generator, 156.25MHz, CMOS, QFN-10

与XR81101相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

39
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

31
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

59
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

55

产品中心

服务支持

精选活动

关于我们

帮助中心

XR81101

XR81101 数据手册

与XR81101相关器件

与XR81101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

XR81101

XR81101 数据手册

与XR81101相关器件

与XR81101相关文章

您还可以找

您在本页遇到什么问题？