SM8761AAS

更新时间： 2024-09-29 04:03:59

品牌	Logo	应用领域
NPC		时钟发生器微控制器和处理器光电二极管
页数	文件大小	规格书
11页	126K
描述
Spread Spectrum Clock Generator

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中文翻译

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数据手册

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SM8761AAS 数据手册

SM8761 series

Spread Spectrum Clock Generator

OVERVIEW

The SM8761 series are compact clock generator ICs that have a spread spectrum (SS) function to reduce unde-

sirable EMI radiation. They have a built-in crystal oscillator circuit, PLL, and loop ﬁlter. They accept an input

clock signal, generated using an external crystal or direct external clock input, and output an SS-modulated

clock signal. In addition, versions are available for center spread and down spread modulation mode, and all

have a mode control pin to select the SS modulation function.

FEATURES

ꢀ Spread spectrum clock output to reduce EMI

ꢀ Correspond to wide range of output frequency

ꢀ Low jitter

ꢀ Operating supply voltage: 3.3 0.3V

ꢀ Multiplication: 1-time multiplication

ꢀ Package: 8-pin SOP

SM8761AA

Down spread

SM8761AB

Spectrum modulation mode

Center spread

Spectrum modulation rate

– 1.0% to – 3.8%

20MHz to 40MHz

0.75% to 2.25%

12MHz to 32MHz

1-time multiplication

Crystal element connection

External input clock

Input frequency

20MHz to 108MHz

1-time multiplication

200ps (typ) @33MHz

120ps (typ) @75MHz

Output frequency

Multiplication

Jitter (Cycle-to-Cycle)

200ps (typ) @16MHz

*1. The modulation rate that can be selected varies with the input frequency.

PINOUT

PACKAGE DIMENSIONS

(Top view)

(Unit: mm)

XTN

VDD

MSEL1

MSEL0

TSTN

VSS

0.695typ

5.2 0.3

CLKOUT

1.27

0 to 10°

0.10

0.4 0.1

APPLICATIONS

0.12

^ꢀPrinter (laser/inkjet)

^ꢀPhotocopiers, scanners

^ꢀLCD/PDP displays

^ꢀProjectors

ORDERING INFORMATION

Device

Package

^ꢀMiscellaneous electronic equipment

SM8761AAS

SM8761ABS

8-pin SOP

NIPPON PRECISION CIRCUITS INC.—1

12 3 4 5 6 7...11

中文翻译

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与SM8761AAS相关器件

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