Datasheet > GS4915-INE3

GS4915-INE3

更新时间： 2024-02-28 21:11:19

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描述
ClockCleaner⑩

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GS4915-INE3 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	1.72	商用集成电路类型：	CONSUMER CIRCUIT
Base Number Matches：	1

GS4915-INE3 数据手册

GS4915 ClockCleaner™

GS4915 Data Sheet

Key Features

Description

•

Reduces jitter for clocks of 148.5MHz,

148.5/1.001MHz, 74.25MHz, 74.25/1.001MHz and

27MHz

The GS4915 provides a low jitter clock output when fed

with an HD or SD video clock input. Other input clock

frequencies between 12MHz and 165MHz can be

automatically passed through to the GS4915 outputs.

•

Output jitter as low as 20ps peak to peak

Automatic bypass mode for all other clock rates

Loop bandwidth adjustable as low as 2kHz

Output skew control

An internal 2:1 mux allows the user to select between a

differential or single-ended (LVCMOS) input clock. Both

a single-ended LVCMOS- compatible and an

LVDS-compatible differential output are provided.

Input selectable as differential or single-ended

Both single-ended and differential outputs

Uses the GO1555 VCO

The GS4915 may operate in either auto or fixed

frequency mode. In auto mode, the device will

automatically clean the selected input clock if its

frequency is found to be one of the supported SD or HD

clock rates. In fixed mode, the user selects only one of

these frequencies to be cleaned.

Small 6mm x 6mm 40-pin QFN package

Pb-free and RoHS compliant

Applications

In addition, the device allows the user to select between

auto or manual bypass operation. In autobypass mode,

the GS4915 will automatically bypass its cleaning stage

and pass the input clock signal directly to the output

whenever the device is unlocked, which includes the

case where the input frequency is something other than

the five frequencies supported. In manual bypass

mode, the input signal passes through directly to the

output.

High definition video systems. Digital video recording,

playback, processing and display devices.

The GS4915 can optionally double the output frequency

for 74.25MHz or 74.175MHz HD clocks in order to

provide optimal jitter performance of some serializers.

The GS4915 also provides the user with a 2-state skew

control. The output clocks produced by the device may

be advanced by ¼ of an output CLK period in order to

accommodate downstream setup and hold

requirements.

The GS4915 is designed to operate with the GO1555

VCO.

The GS4915 Clock Cleaner complements Gennum's

GS4911B Clock and Timing Generator for

implementing a video genlock solution. Whereas the

GS4911B itself cleans low-frequency jitter, the GS4915

is designed to clean primarily the higher frequency jitter

of clocks generated by the GS4911B.

39145 - 3 November 2007

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