Datasheet > SY89312V

SY89312V

更新时间： 2024-10-01 14:54:07

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美国微芯 - MICROCHIP		/
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7页	391K
描述
The SY89312V is an integrated ÷2 divider with differential clock inputs. It is functionally equiva

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SY89312V 数据手册

SY89312V

3.3V/5V, 4GHz PECL/ECL

÷2 Clock Generator

Precision Edge^®

General Description

Precision Edge^®

The SY89312V is an integrated ÷2 divider with differential

clock inputs. It is functionally equivalent to the

SY100EP32V but in an ultra-small 8-pin QFN package

that features a 70% smaller footprint.

Features

• Guaranteed AC performance over temperature and

The V

pin, an internally generated voltage supply, is

voltage:

>4GHz f

input

available for this device only. For single-ended input

conditions, the unused differential input is connected to V_BB

•

MAX

<160ps t /t

r f

as a switching reference voltage. V can also bias AC-

<440ps t

•

coupled inputs. When used, decouple V and V

via a

•

3.3V and 5V power supply operation

0.01

µF capacitor and limit current sourcing or sinking to

• 100k ECL/PECL-compatible I/O

0.5mA. When not in use, V should be left open.

• Internal 75KΩ input pull-down resistors

• Wide operating temperature range: –40°C to +85°C

• Available in ultra-small 8-pin 2mm × 2mm QFN package

The reset pin is asynchronous and is asserted when it is

high. Upon power-up, the internal flip-flops will be in a

random state; the reset allows for the synchronous use of

multiple SY89312Vs in a system.

Truth Table⁽¹⁾

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

CLK

/CLK

RESET

Note:

1. F = Divide by 2 function.

Precision Edge is a registered trademark of Micrel, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Revision 2.0

hbwhelp@micrel.com or (408) 955-1690

June 25, 2013

12 3 4 5 6 7

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