Datasheet > CY23FS04-2

CY23FS04-2

更新时间： 2024-09-17 01:14:19

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
12页	374K
描述
Failsafeâ¢ 2.5V/3.3V Zero Delay Buffer

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CY23FS04-2 数据手册

CY23FS04-2

Failsafe™ 2.5V/3.3V Zero Delay Buffer

Features

Functional Description

■

Internal DCXO for Continuous Glitch-free Operation

Zero Input-Output Propagation Delay

Low-Jitter (35 ps max RMS) Outputs

Low Output-to-Output Skew (200 ps max)

4.17 MHz to 50 MHz Reference Input

Supports Industry Standard Input Crystals

4.17 MHz to 50 MHz Outputs

The CY23FS04-2 is a FailSafe™ zero delay buffer with two

reference clock inputs and four phase-aligned outputs. The

device provides an optimum solution for applications where

continuous operation is required in the event of a primary clock

failure.

The continuous, glitch-free operation is achieved by using a

DCXO, which serves as a redundant clock source in the event of

a reference clock failure by maintaining the last frequency and

phase information of the reference clock.

The unique feature of the CY23FS04-2 is that the DCXO is in fact

the primary clocking source, which is synchronized

(phase-aligned) to the external reference clock. When this

external clock is restored, the DCXO automatically resynchro-

nizes to the external clock.

5V-Tolerant Inputs

Phase-Locked Loop (PLL) Bypass Mode

Dual Reference Inputs

The frequency of the crystal that is connected to the DCXO must

be an integer factor of the frequency of the reference clock. This

factor is set by two select lines: S[2:1], see Table 2. The output

power supply VDD can be connected to either 2.5V or 3.3V.

VDDC is the power supply pin for internal circuits and must be

connected to 3.3V.

16-Pin TSSOP

2.5V or 3.3V Output Power Supplies

3.3V Core Power Supply

Logic Block Diagram

XIN XOUT

DCXO

REFSEL

REF1

CLKA[1:2]

CLKB[1:2]

Failsafe^TM

Block

REF2

FBK

PLL

Decoder

FAIL# /SAFE

S[2:1]

Cypress Semiconductor Corporation

Document Number: 38-07671 Rev. *B

•

198 Champion Court

•

San Jose

CA 95134-1709

•

408-943-2600

Revised January 29, 2010

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与CY23FS04-2相关器件

型号	品牌	获取价格	描述	数据表
CY23FS04-3	CYPRESS	获取价格	Failsafeâ¢ 2.5 V/3.3 V Zero Delay Buffer
CY23FS04ZC	CYPRESS	获取价格	Failsafe 2.5V/ 3.3V Zero Delay Buffer
CY23FS04ZCT	CYPRESS	获取价格	Failsafe 2.5V/ 3.3V Zero Delay Buffer
CY23FS04ZI	CYPRESS	获取价格	Failsafe 2.5V/ 3.3V Zero Delay Buffer
CY23FS04ZIT	CYPRESS	获取价格	Failsafe 2.5V/ 3.3V Zero Delay Buffer
CY23FS04ZXC	CYPRESS	获取价格	Failsafe⑩ 2.5V/ 3.3V Zero Delay Buffer
CY23FS04ZXC-2	CYPRESS	获取价格	Failsafeâ¢ 2.5V/3.3V Zero Delay Buffer
CY23FS04ZXC-2T	CYPRESS	获取价格	Failsafeâ¢ 2.5V/3.3V Zero Delay Buffer
CY23FS04ZXCT	CYPRESS	获取价格	Failsafe⑩ 2.5V/ 3.3V Zero Delay Buffer
CY23FS04ZXI	CYPRESS	获取价格	Failsafe⑩ 2.5V/ 3.3V Zero Delay Buffer