Datasheet > 暂无类别数据> MB88R157PNF-G-JN-EFE1

MB88R157PNF-G-JN-EFE1

更新时间： 2024-11-07 11:13:03

品牌	Logo	应用领域
富士通 - FUJITSU		时钟发生器
页数	文件大小	规格书
24页	132K
描述
Spread Spectrum Clock Generator

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MB88R157PNF-G-JN-EFE1 数据手册

FUJITSU MICROELECTRONICS

DATA SHEET

DS04-29132-3E

ASSP

Spread Spectrum Clock Generator

MB88R157

■ DESCRIPTION

MB88R157 is a clock generator for EMI (Electro Magnetic Interference) reduction. The peak of unnecessary

radiation noise (EMI) can be attenuated by making the oscillation frequency slightly modulate periodically with

the internal modulator.

This product has a built-in non-volatile memory, so its frequency setting can memorize each system or application.

Also the product has a built-in oscillation stabilization circuit, so it is not necessary to use the external oscillation

stabilization capacitance.

■ FEATURES

• Input frequency

• Output frequency : 1 MHz to 134 MHz

Programmable of the parameter of N divider, M divider, K divider

: 10 MHz to 40 MHz

(N divider : 11-bit, M divider : 12-bit, K divider : 7-bit)

• Modulation rate

: no modulation, 0.25%, 0.5%, 0.75%, 1.0%, 1.25%, 1.5%, 1.75%

• Equipped with a crystal oscillation circuit

• Built-in oscillation stabilization capacitance : 5 pF to 10 pF (0.039 pF step range)

• Clock output Duty : 45% to 55%

• Clock Cycle-Cycle Jitter : Less than 100 ps (Output frequency is over 2 MHz)

• Low power consumption by CMOS process 5.5 mA (24 MHz, Typ-sample, no load)

(Input frequency : 24 MHz, N divider parameter : 1000, M divider parameter : 1000, K divider parameter : 1)

• Power supply voltage : 3.3 V 0.3 V

• Operating temperature −20 °C to + 85 °C

• Package : 8-pin plastic SOP

2009.8

12 3 4 5 6 7...24

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