ICS8745B datasheet(6/15 Pages) ICST

部件名	ICS8745B

功能描述	1:5 DIFFERENTIAL-TO-LVDS ZERO DELAY CLOCK GENERATOR

PDF	15 Pages

Scroll/Zoom	100%

制造商	ICST [Integrated Circuit Systems]

网页	http://www.icst.com

标志

6 / 15 page

8745BY

www.icst.com/products/hiperclocks.html

REV. B DECEMBER 2, 2004

Integrated

Circuit

Systems, Inc.

ICS8745B

1:5 DIFFERENTIAL-TO-LVDS

ZERO DELAY CLOCK GENERATOR

PARAMETER MEASUREMENT INFORMATION

DIFFERENTIAL INPUT LEVEL

3.3V OUTPUT LOAD AC TEST CIRCUIT

SCOPE

nQx

LVDS

Power Supply

Float GND

3.3V

PHASE JITTER AND STATIC PHASE OFFSET

CMR

Cross Points

GND

CLK0,

CLK1

nCLK0,

nCLK1

CYLE-TO-CYCLE JITTER

OUTPUT RISE/FALL TIME

Clock

Outputs

20%

80%

20%

t F

VOD

tsk(o)

OUTPUT SKEW

nQx

nQy

(where

t(Ø) is any random sample, and t(Ø) mean is the average

of the sampled cycles measured on controlled edges)

t (Ø) mean = Static Phase Offset

➤t(Ø)

nFB_IN

FB_IN

tjit(Ø) = t(Ø) — t(Ø) mean = Phase Jitter

CLK0,

CLK1

nCLK0,

nCLK1

➤

tjit(cc) = tcycle n –tcycle n+1

1000 Cycles

tcycle n

tcycle n+1

Q0:Q4

nQ0:nQ4

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