Datasheet > NB2669ASNR2

NB2669ASNR2

更新时间： 2024-11-24 03:47:03

品牌	Logo	应用领域
安森美 - ONSEMI		时钟
页数	文件大小	规格书
8页	116K
描述
Low Power, Reduced EMI Clock Synthesizer

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NB2669ASNR2 数据手册

NB2669A

Low Power, Reduced EMI

Clock Synthesizer

The NB2669A is a versatile spread spectrum frequency modulator

designed specifically for a wide range of clock frequencies. The

NB2669A reduces ElectroMagnetic Interference (EMI) at the clock

source, allowing system wide reduction of EMI of all clock dependent

signals. The NB2669A allows significant system cost savings by

reducing the number of circuit board layers, ferrite beads and

shielding that are traditionally required to pass EMI regulations.

The NB2669A uses the most efficient and optimized modulation

profile approved by the FCC and is implemented by using a

proprietary all digital method.

The NB2669A modulates the output of a single PLL in order to

“spread” the bandwidth of a synthesized clock, and more importantly,

decreases the peak amplitudes of its harmonics. This results in

significantly lower system EMI compared to the typical narrow band

signal produced by oscillators and most frequency generators.

Lowering EMI by increasing a signal’s bandwidth is called ‘spread

spectrum clock generation’.

http://onsemi.com

MARKING

DIAGRAM*

TSOP−6

(TSOT−23−6)

SN SUFFIX

CASE 318G

E02AYWG

E02 = Specific Device Code

= Assembly Location

= Year

= Work Week

= Pb−Free Package

The NB2669A is targeted towards all portable devices with very

low power requirements like MP3 players and digital still cameras.

(Note: Microdot may be in either location)

*For additional marking information, refer to

Application Note AND8002/D.

Features

• Generates an EMI Optimized Clocking Signal at the Output

• Integrated Loop Filter Components

• Operates with a 3.3 V / 2.5 V Supply

• Operating Current less than 4.0 mA

• Low Power CMOS Design

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 7 of this data sheet.

• Input Frequency Range: 6.0 MHz to 12 MHz for 2.5 V

Input Frequency Range: 6.0 MHz to 13 MHz for 3.3 V

• Generates a 1X Low EMI Spread Spectrum clock of the Input

Frequency

• Frequency Deviation "1% @ 10 MHz

• Available in TSOP−6 Package (TSOT−23−6)

• Pb−Free Package is Available

Publication Order Number:

December, 2006 − Rev. 3

NB2669A/D

12 3 4 5 6 7 8

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与NB2669ASNR2相关器件

型号	品牌	获取价格	描述	数据表
NB2669ASNR2G	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2760A	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2760ASNR2	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2760ASNR2G	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2762A	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2762ASNR2	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2762ASNR2G	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2769A	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2769ASNR2	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer
NB2769ASNR2G	ONSEMI	获取价格	Low Power, Reduced EMI Clock Synthesizer

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