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NB4N507A_06 Datasheet, PDF (1/7 Pages) ON Semiconductor – 3.3V/5V, 50 MHz to 200 MHz PECL Clock Synthesizer | |||
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NB4N507A
3.3V/5V, 50 MHz to 200 MHz
PECL Clock Synthesizer
Description
The NB4N507A is a precision clock synthesizer which generates a
very low jitter differential PECL output clock. It produces a clock
output based on an integer multiple of an input reference frequency.
The NB4N507A accepts a standard fundamental mode crystal,
using PhaseâLockedâLoop (PLL) techniques, will produce output
clocks up to 200 MHz. In addition, the PLL circuitry will produce a
50% duty cycle squareâwave clock output.
The NB4N507A can be programmed to generate a selection of input
reference frequency multiples. An exact 155.52 MHz output clock can
be generated from a 19.44 MHz crystal and the x8 multiplier selection.
The NB4N507A is intended for low output jitter clock generation.
Features
⢠Input Crystal Frequency of 10 â 27 MHz
⢠Enable Usage of Common LowâCost Crystal
⢠Differential PECL Output Clock Frequencies up to 200 MHz
⢠Duty Cycle of 48%/52%
⢠Operating Range: VCC = 3.0 V to 5.5 V
⢠Ideal for SONET Applications and Oscillator Manufacturers
⢠Available in Die Form
⢠Packaged in 16âPin Narrow SOIC
⢠PbâFree Packages are Available*
http://onsemi.com
SOICâ16
D SUFFIX
CASE 751B
MARKING DIAGRAM
NB4N507AG
AWLYWW
Osc
PD
CP VCO
PECL
CLKOUT
CLKOUT
Mult
OE
S0 S1
Figure 1. Simplified Logic Block
A
= Assembly Location
WL = Wafer Lot
Y
= Year
WW = Work Week
G
= PbâFree Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
*For additional information on our PbâFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
1
November, 2006 â Rev. 2
Publication Order Number:
NB4N507A/D
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