5V50009DCG8 datasheet(1/8 Pages) IDT

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DATASHEET

SPREAD SPECTRUM CLOCK GENERATOR

IDT5V50009

IDT™ SPREAD SPECTRUM CLOCK GENERATOR

1

IDT5V50009

REV C 040609

Description

The IDT5V50009 generates a low EMI output clock and a

reference clock from a clock or crystal input. The part is

designed to lower EMI through the application of spreading

a clock. Using IDT’s proprietary mix of analog and digital

Phase-Locked Loop (PLL) technology, the device spreads

the frequency spectrum of the output, reducing the

frequency amplitude peaks by several dB depending on

spread range. The IDT5V50009 offers a range of down

spread from a high speed clock or crystal input. The

IDT5V50009 generates one modulated (SSCLK) and

unmodulated (REFCLK) clock. The modulated clock is

controlled by the select pin, and the unmodulated clock has

the same frequency as the input clock or crystal.

Features

• Packaged in 8-pin SOIC

• Available in Pb (lead) free package

• Input frequency range 20- 40 MHz

• Provides modulated and unmodulated clocks

• Accepts a clock or crystal input

• Provides down spread modulation

• Provides power down function

• Reduce electromagnetic interference (EMI) by

8-16 db

• Operating voltage of 3.3 V

• Advanced, low-power CMOS process

Block Diagram

PLL Clock

Synthesis and

Spread

Spectrum

Circuitry

S0

GND

Clock Buffer/

Crystal

Ocsillator

X1/CLK

X2

External caps required for

with crystal for accurate

tuning of the clock

SSCLK

REFCLK

VDD

PD

Số phần tương tự - 5V50009DCG8

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Renesas Technology Corp	5V50009DCG8	181Kb / 8P	SPREAD SPECTRUM CLOCK GENERATOR 040609

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