NB4N441

更新时间： 2024-10-01 03:46:59

品牌	Logo	应用领域
安森美 - ONSEMI		时钟
页数	文件大小	规格书
12页	169K
描述
3.3V Serial Input MultiProtocol PLL Clock Synthesizer, Differential LVPECL Output

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NB4N441 数据手册

NB4N441

3.3V Serial Input

MultiProtocol PLL Clock

Synthesizer, Differential

LVPECL Output

http://onsemi.com

Description

MARKING

DIAGRAM*

The NB4N441 is a precision clock synthesizer which generates a

differential LVPECL clock output frequency from 12.5 MHz to

425 MHz. A Serial Peripheral Interface (SPI) is used to configure the

device to produce one of sixteen popular standard protocol output

frequencies from a single 27 MHz crystal reference. The NB4N441

also has the added feature of allowing application specific output

frequencies from 12.5 MHz to 425 MHz using crystals within the

range of 10 MHz to 28 MHz.

NB4N

441

QFN−24

MN SUFFIX

CASE 485L

ALYWG

Features

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

• Performs Precision Clock Generation and Synthesis from a Single

27 MHz Crystal Reference

• Serial Load Capability for Proprietary Frequencies

• Flexible Input Allows for External Clock Reference

(Note: Microdot may be in either location)

• Exceeds Bellcore and ITU Jitter Generation Specification

• PLL Lock Detect Output

*For additional marking information, refer to

Application Note AND8002/D.

• Output Enable

• Fully Integrated Phase−Lock−Loop with Internal Loop Filter

• Operating Range: V = 3.135 V to 3.465 V

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 11 of this data sheet.

• Small Footprint 24 Pin QFN

• These are Pb−Free Devices*

LOCKED

XTAL

OSC

OUTDIV

CLKOUT

B2, 4, 8,

27 MHz

16, 32

CLKOUT

Feedback

Divider

− 2 V

SDATA

SCLOCK

SLOAD

Frequency Control Logic

Serial Load

Figure 1. Simplified Block Diagram

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Semiconductor Components Industries, LLC, 2006

Publication Order Number:

June, 2006 − Rev. 0

NB4N441/D

12 3 4 5 6 7...12

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