CY2XP22

更新时间： 2024-11-23 09:41:55

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		时钟发生器
页数	文件大小	规格书
10页	270K
描述
Crystal to LVPECL Clock Generator One LVPECL output pair

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

CY2XP22 数据手册

CY2XP22

Crystal to LVPECL Clock Generator

■ Pb-free 8-Pin TSSOP package

Features

■ Supply voltage: 3.3 V or 2.5 V

■ One LVPECL output pair

■ Commercial and Industrial temperature ranges

■ Selectable frequency multiplication: x2.5 or x5

■ External crystal frequency: 25.0 MHz

■ Output frequency: 62.5 MHz or 125 MHz

Functional Description

The CY2XP22 is a PLL (Phase Locked Loop) based high

performance clock generator that uses an external reference

crystal. It is specifically targeted at FibreChannel and Gigabit

Ethernet applications. It produces a selectable output frequency

that is 2.5 or 5 times the crystal frequency. With a 25 MHz crystal,

the user can select either a 62.5 MHz or 125 MHz output. It uses

Cypress’s low noise VCO technology to achieve less than 1 ps

typical RMS phase jitter. The CY2XP22 has a crystal oscillator

interface input and one LVPECL output pair.

■ Low RMS phase jitter at 125 MHz, using 25 MHz crystal

(1.875 MHz to 20 MHz): 0.4 ps (typical)

■ Phase noise at 125 MHz (typical):

Offset

1 kHz

Noise Power

–117 dBc/Hz

–126 dBc/Hz

–131 dBc/Hz

10 kHz

100 kHz

1 MHz

Logic Block Diagram

XIN

External

Crystal

CLK

CRYSTAL

OSCILLATOR

LOW -N OISE

PLL

OUTPUT

DIVIDER

CLK#

XOUT

F_SEL

Pinouts

Figure 1. Pin Diagram – 8-Pin TSSOP

VDD

VSS

XOUT

XIN

VDD

CLK

CLK#

F_SEL

Table 1. Pin Definitions – 8-Pin TSSOP

Pin Number

Pin Name

VDD

I/O Type

Description

1, 8

Power

3.3 V or 2.5 V power supply

Ground

VSS

3, 4

XOUT, XIN

F_SEL

XTAL output and input

CMOS input

Parallel resonant crystal interface

Frequency Select: see Frequency Table

Differential clock output

6,7

CLK#, CLK

LVPECL output

Cypress Semiconductor Corporation

Document #: 001-10229 Rev. *F

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised April 11, 2011

[+] Feedback

12 3 4 5 6 7...10

中文翻译

下载PDF

与CY2XP22相关器件

型号	品牌	获取价格	描述	数据表
CY2XP22_11	CYPRESS	获取价格	Crystal to LVPECL Clock Generator One LVPECL output pair
CY2XP22ZXC	CYPRESS	获取价格	Crystal to LVPECL Clock Generator
CY2XP22ZXCT	CYPRESS	获取价格	Crystal to LVPECL Clock Generator
CY2XP22ZXI	CYPRESS	获取价格	Crystal to LVPECL Clock Generator
CY2XP22ZXIT	CYPRESS	获取价格	Crystal to LVPECL Clock Generator
CY2XP24	CYPRESS	获取价格	Crystal to LVPECL Clock Generator One LVPECL Output Pair
CY2XP24_11	CYPRESS	获取价格	Crystal to LVPECL Clock Generator One LVPECL Output Pair
CY2XP24ZXC	CYPRESS	获取价格	Crystal to LVPECL Clock Generator
CY2XP24ZXCT	CYPRESS	获取价格	Crystal to LVPECL Clock Generator
CY2XP24ZXI	CYPRESS	获取价格	Crystal to LVPECL Clock Generator