NBC12439FN datasheet(1/20 Pages) ONSEMI

Part #	NBC12439FN

Description	3.3 V/5 V Programmable PLL Synthesized Clock Generator

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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May, 2003 - Rev. 2

1

Publication Order Number:

NBC12439/D

NBC12439

3.3 V/5 VProgrammable

PLL Synthesized Clock

Generator

50 MHz to 800 MHz

The NBC12439 is a general purpose, PLL based synthesized clock

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

800 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. The PLL loop filter is fully

integrated and does not require any external components.

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

• 50 MHz to 800 MHz Programmable Differential PECL Outputs

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

• Parallel Interface for Programming Counter and Output Dividers

During Power-Up

• Minimal Frequency Overshoot

• Serial 3-Wire Programming Interface

• Crystal Oscillator Interface

• Operating Range: V

CC = 3.135 V to 5.25 V

• CMOS and TTL Compatible Control Inputs

• Pin Compatible with Motorola MC12439

• Power-Down of PECL Outputs (B16)

MARKING

DIAGRAMS

A

= Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

PLCC-28

FN SUFFIX

CASE 776

NBC12439

AWLYYWW

128

LQFP-32

FA SUFFIX

CASE 873A

NBC12439

AWLYYWW

Device

Package

Shipping

ORDERING INFORMATION

NBC12439FN

PLCC-28

37 Units/Rail

NBC12439FNR2

PLCC-28

500 Tape & Reel

NBC12439FA

LQFP-32

250 Units/Tray

NBC12439FAR2

LQFP-32

2000 Tape & Reel

1

32

http://onsemi.com

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