NBC12429 데이터 시트보기 (PDF) - ON Semiconductor

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NBC12429

3.3V/5V Programmable PLL Synthesized Clock Generator

ON Semiconductor 

NBC12429, NBC12429A

3.3V/5V Programmable PLL

Synthesized Clock

Generator

25 MHz to 400 MHz

Description

The NBC12429 and NBC12429A are general purpose,

Phase−Lock−Loop (PLL) based synthesized clock sources. The VCO

will operate over a frequency range of 200 MHz to 400 MHz. The

VCO frequency is sent to the N−output divider, where it can be

configured to provide division ratios of 1, 2, 4, or 8. The VCO and

output frequency can be programmed using the parallel or serial

interfaces to the configuration logic. Output frequency steps of

125 kHz, 250 kHz, 500 kHz, or 1.0 MHz can be achieved using a

16 MHz crystal, depending on the output dividers. The PLL loop filter

is fully integrated and does not require any external components.

Features

• Best−in−Class Output Jitter Performance, ±20 ps Peak−to−Peak

• 25 MHz to 400 MHz Programmable Differential PECL Outputs

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

• Parallel Interface for Programming Counter and Output Dividers

During Powerup

• Minimal Frequency Overshoot

• Serial 3−Wire Programming Interface

• Crystal Oscillator Interface

• Operating Range: VCC = 3.135 V to 5.25 V

• CMOS and TTL Compatible Control Inputs

• Pin and Function Compatible with Motorola MC12429 and

MPC9229

• 0°C to 70°C Ambient Operating Temperature (NBC12429)

• −40°C to 85°C Ambient Operating Temperature (NBC12429A)

• Pb−Free Packages are Available

http://onsemi.com

MARKING

DIAGRAMS

1 28

281

PLCC−28

FN SUFFIX

CASE 776

NBC12429xG

AWLYYWW

LQFP−32

FA SUFFIX

CASE 873A

NBC12

429x

AWLYYWWG

1 32

QFN32

MN SUFFIX

CASE 488AM

1

NBC12

429x

AWLYYWWG

G

x

= Blank or A

A

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

G or G = Pb−Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 18 of this data sheet.

© Semiconductor Components Industries, LLC, 2009

1

January, 2009 − Rev. 13

Publication Order Number:

NBC12429/D

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