PLL701-01 datasheet, PDF - EEWORLD Datasheet

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PLL701-01: Descriptionlow emi spread spectrum multiplier clock; File Size215KB，5 Pages; ManufacturerPLL (PhaseLink Corporation)

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PLL701-01 Overview

low emi spread spectrum multiplier clock

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PLL701-01/02/04/06

Low EMI Spread Spectrum Multiplier Clock

FEATURES

•

Spread Spectrum Clock Generator with selectable

multiplier from 1x to 6x outputs.

Output frequency ranges: 10MHz to 180MHz.

Accepts input from crystal or reference clock.

Selectable Center, Down or Asymmetric Spread

Modulation.

Selectable Modulation rate.

TTL/CMOS compatible outputs.

3.3V Operating Voltage.

Low short term jitter.

Available in 8-Pin 150mil SOIC.

PIN CONFIGURATION

XIN/FIN

XOUT/SD*^

SC0^

SC1^

VDD

SC2^

FOUT

GND

PLL701-0X

XIN/FIN = 10 ~ 30 MHz

Note:

^: Internal pull-up resistor (120kΩ for SD, 30 kΩ for

SC0-SC2).

*: The value of SD is latched upon power-up. The

internal pull-up resistor results in a default high value

when no pull-down resistor is connected to this pin

(recommended external pull-down resistor of 27 kΩ).

DESCRIPTION

The PLL701-01/02/04/06 are Spread Spectrum Clock

Generators designed for the purpose of reducing EMI

in high-speed digital systems. Any output frequency

from 10 to 180MHz can be selected by programming

6 multiplier modes. The device is designed to operate

from a crystal or reference clock input and provides

1x to 6x modulated clock outputs.

OUTPUT CLOCK (FOUT) SELECTION

SC2

SC1

SC0

FOUT

(-01)

FOUT

(-02)

FOUT

(-04)

FOUT

(-06)

SST Modulation

Magnitude

0.50%

1.00%

1.50%

2.00%

Fin / 512

2.50%

3.00%

3.50%

OFF

Freq.

Type

±0.25%

±0.5%

-1.0%

±0.75%

+0.25% ~ -1.25%

±1.0%

+0.5% ~ -1.5%

±1.25%

+0.75% ~ -1.75%

±1.5%

+1.0% ~ -2.0%

±1.75%

+1.25% ~ -2.25%

Notes:

C: Center Spread. A: Asymmetric Spread. D: Down Spread.

47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991

www.phaselink.com

Rev 08/30/05 Page 1

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