Datasheet PI6C2504 Datasheet (PERICOM)

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查询PI6C2504供应商

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PI6C2504

Phase-Locked Loop Clock Driver

with 4 Clock Outputs

Product Features

• High-Performance Phase-Locked-Loop Clock

Distribution for Networking

• Registered DIMM Synchronous DRAM modules

for server/workstation/PC applications

• Allows Clock Input to have Spread Spectrum

modulation for EMI reduction

• Zero Input-to-Output delay

• Low jitter: Cycle-to-Cycle jitter ±100ps max.

• On-chip series damping resistor at clock output

drivers for low noise and EMI reduction

• Operates at 3.3V V

• Wide range of Clock Frequencies up to 80 MHz

• Package: Plastic 16-pin QSOP Package (Q)

CC

Product Description

The PI6C2504 features a low-skew, low-jitter, phase-locked loop
(PLL) clock driver, distributing high-frequency clock signals for
SDRAM and server applications. By connecting the feedback
FB_OUT output to the feedback FB_IN input, the propagation
delay from the CLK_IN input to any clock output will be nearly zero.

Logic Block Diagram

G

CLK_IN

FB_IN

AV

CC

Functional Table

stupnIstuptuO

G]3:0[YTUO_BF

LL NI_KLC

HNI_KLCNI_KLC

PLL

4

Y[0:3]

FB_OUT

Product Pin Configuration

AGND

V

GND

V

FB_OUT

CC

Y0
Y1

CC

1
2
3

16-Pin

4
5
6

G

7
8

CLK_IN

16

AV

15
14

Q

13
12
11
10

9

CC

GND
GND
Y3

Y2
V

CC

FB_IN

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Pin Functions

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NI_KLC61I .tupnikcolCecnerefeRNI_KLC.tupnikcolcmurtcepsdaerpsswolla

NI_BF9IeeF.tupnikcabdNI_BFdivorp.LLPlanretniehtotlangiskcabdeefehtse

G7I .etatswolcigolaotdelbasidera]3:0[Ystuptuo,WOLsiGnehW.elbaneknabtuptuO

PI6C2504

Phase-Locked Loop Clock Driver

with 4 Clock Outputs

TUO_BF8O

]3:0[Y21,11,4,3O

VA

CC

51rewoP

F.tuptuokcabdeeTUO_BFidedsi.kcabdeeflanretxerofdetacTUO_BFdeddebmenasah

.rotsisergnipmad-seiresdeddebmenasahtuptuohcaE

VA,sesopruptsetroF.ylppusrewopgolanA

CC

VA

CC

dnadessapybsiLLP,dnuorgotdeppartssiNI_KLCecivedehtotyltceriddereffubsi

.stuptuo

DNGA1dnuorG .yrtiucricgolanaehtrofecnereferdnuorgehtsedivorpDNGA.dnuorggolanA

V

CC

01,6,2rewoP.ylppusrewoP

DNG41,31,5dnuorGdnuorG

DC Specifications (Absolute maximum ratings over operating free-air temperature range)

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V

I

V

O

I

CD_O

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T

GTS

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egnaregatlovtuptuO

tnerructuptuoCD 001Am

o

55=

A

riallitsniC0.1W

erutarepmetegarotS56051

.xYstuptuokcolcehtsaeulavemasehtforotsisergnipmad-seires

foseipocweks-woledivorpstuptuoesehT.stuptuokcolCNI_KLC

5.0V

5.0+V

CC

o

nehW.LLPehtssapybotdesuoslaebnac

C

Note: Stress beyond those listed under absolute maximum ratings may cause permanent damage to the device.

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I

CC

C

I

C

O

VIV=

VIV=
VOV=

CC

CC

CC

I;DNGro

DNGro
DNGro6

)1(

0=

O

CC

V6.301

V3.3

.niM.pyT.xaMstinU

4

Note: 1. Continuous Output Current

Recommended Operating Conditions

lobmySretemaraP.niM.xaMstinU

V

CC

V

HI

V

LI

V

I

T

A

egatlovylppuS0.36.3

egatlovtupnilevelhgiH0.2
egatlovtupnilevelwoL 8.0

egatlovtupnI0V

CC

erutarepmetria-eerfgnitarepO007Cº

µA

Fp

V

2

PS8380A 07/17/00

Phase-Locked Loop Clock Driver

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Electrical Characteristics

(Over recommended operating free-air temperature range Pull Up/Down Currents, VCC = 3.0V)

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PI6C2504

with 4 Clock Outputs

V

I

HO

I

LO

tnerrucpu-lluP

tnerrucnwod-lluP

TUO

V

TUO

V

TUO

V

TUO

V4.2=

V0.2=

V8.0=52

V55.0=71

AC Specifications

Timing requirements over recommended ranges of supply voltage and operating free-air temperature

lobmySretemaraP.niM.xaMstinU

F

KLC

CYI

D

ycneuqerfkcolC5208zHM

elcycytudkcolctupnI0406%

purewopretfaemiTnoitazilibatS1sm

Switching Characteristics

(Over recommended ranges of supply voltage and operating free-air temperature, CL=30pF)

V

retemaraP)tupnI(morF)tuptuO(oT

CC

.niM.pyT.xaM

− 81

− 03

Am

C°07-0,V3.0±V3.3=

stinU

rettijtuohtiwrorreesahpt

NI_KLC ↑

elcyc-ot-elcyc,rettiJzHM66dnazHM001tATUO_BFroYynA001001+

zHM66dnazHM001ta,wekSTUO_BFroYynA002

elcycytuD 5455%

V0.2otV4.0,emit-esir,rt 0.1

V4.0otV0.2,emit-llaf,ft 1.1

Note: These switching parameters are guaranteed by design.

zHM66dnazHM001ta

NI_BF ↑ 051051+

sp

sn

3

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Package Mechanical Information: 16-pin QSOP Package (Q).

PI6C2504

Phase-Locked Loop Clock Driver

with 4 Clock Outputs

°

Ordering Information

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Q4052C6IP61QPOSQnip-61laicremmoC

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax [phone] • http://www.pericom.com

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