W181 Просмотр технического описания (PDF) - Cypress Semiconductor

Номер в каталоге

Компоненты Описание

производитель

W181

Peak-Reducing EMI Solution

Cypress Semiconductor 

W181

Peak-Reducing EMI Solution

Features

• Cypress PREMIS™ family offering

• Generates an EMI optimized clocking signal

at the output

• Selectable input to output frequency

• Single 1.25% or 3.75% down or center spread output

Simplified Block Diagram

3.3 or 5.0V

XTAL

Input

40 MHz

Max.

X1

X2

W181

Spread Spectrum

Output

(EMI suppressed)

3.3 or 5.0V

Oscillator or

Reference Input

W181

Spread Spectrum

Output

(EMI suppressed)

• Integrated loop filter components

• Operates with a 3.3V or 5V supply

• Low-power CMOS design

• Available in 8-pin small outline integrated circuit

(SOIC) or 14-pin thin shrink small outline package

(TSSOP select options only)

Pin Configurations

SOIC

CLKIN or X1 1

NC or X2 2

GND 3

SS% 4

8 FS2

7 FS1

6 VDD

5 CLKOUT

CLKIN or X1 1

NC or X2 2

GND 3

SS% 4

8 SSON#

7 FS1

6 VDD

5 CLKOUT

TSSOP

FS2 1

CLKIN or X1 2

NC or X2 3

GND 4

NC 5

SS% 6

NC 7

14 NC

13 NC

12 FS1

11 NC

10 VDD

9 NC

8 CLKOUT

Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600

Document #: 38-07152 Rev. *D

Revised July 06, 2004

Share Link: