Datasheet > P56C3Q991-5J

P56C3Q991-5J

更新时间： 2024-09-24 23:25:39

品牌	Logo	应用领域
其他 - ETC		时钟驱动器
页数	文件大小	规格书
10页	546K
描述
Eight Distributed-Output Clock Driver

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中文翻译

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数据手册

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P56C3Q991-5J 数据手册

PI6C3Q991, PI6C3Q993

3.3V Programmable Skew PLL Clock Driver

SuperClock

Features

Description

PI6C3Q99X family provides following products:

PI6C3Q991:32-pinPLCCversion

PI6C3Q993:28-pinQSOPversion

Inputs are 5V I/O Tolerant

4 pairs of programmable skew outputs

Low skew: 200ps same pair; 250ps all outputs

Selectable positive or negative edge synchronization:

Excellent for DSP applications

ThePI6C3Q99Xfamilyisahighfanout3.3VPLL-basedclockdriver

intended for high performance computing and data-communica-

tions applications. A key feature of the programmable skew is the

abilityofoutputstoleadorlagtheREFinputsignal.ThePI6C3Q991

has 8 programmable skew outputs in 4 banks of 2, while the

PI6C3Q993 has 6 programmable skew outputs and 2 zero skew

outputs.Skewiscontrolledby3-levelinputsignalsthatmaybehard-

wiredtoappropriateHIGH-MID-LOWlevels.

Synchronous output enable

Output frequency: 3.75 MHz to 85 MHz

2x, 4x, 1/2, and 1/4 outputs

3 skew grades:

3-level inputs for skew and PLL range control

PLL bypass for DC testing

When the GND/sOE pin is held low, all the outputs are synchro-

nously enabled. However, if GND/sOE is held high, all the outputs

except3Q0and3Q1aresynchronouslydisabled.Furthermore,when

the V

/PE is held high, all the outputs are synchronized with the

CCQ

positive edge of the REF clock input. When V

/PE is held low,

CCQ

alltheoutputsaresynchronizedwiththenegativeedgeof REF.Both

devices have LVTTL outputs with 12mA balanced drive outputs.

Externalfeedback,internalloopfilter

12mA balanced drive outputs

LowJitter:<200pspeak-to-peak

Industrial temperature range

Pin-to-pincompatiblewithIDTQS5V991andQS5V993

Availablein32-pinPLCCand28-pinQSOP

PinConfigurations

PI6C3Q991

PI6C3Q993

REF

GND

TEST

2F1

CCQ

1 32 31 30

3F0

3F1

/PE

2F0

3F1

4F0

4F1

/PE

2F0

GND/sOE

1F1

GND/sOE

1F1

CCQ

28-Pin

1F0

CCN

1F0

CCQ

32-Pin

4Q1

4Q0

GND

3Q1

3Q0

CCN

4Q1

4Q0

GND

CCN

1Q0

1Q1

GND

2Q0

2Q1

1Q0

1Q1

GND

14 15 16 17 18 19 20

CCN

PS8449A

10/09/00

12 3 4 5 6 7...10

中文翻译

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