NB4N507A - PECL Clock Synthesizer

Datasheet Summary

Description

very low jitter differential PECL output clock.

It produces a clock output based on an integer multiple of an input reference frequency.

Features

ăInput Crystal Frequency of 10 - 27 MHz.
ăEnable Usage of Common Low-Cost Crystal.
ăDifferential PECL Output Clock Frequencies up to 200 MHz.
ăDuty Cycle of 48%/52%.
ăOperating Range: VCC = 3.0 V to 5.5 V.
ăIdeal for SONET.

ON Semiconductor

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Datasheet Details

Part number	NB4N507A
Manufacturer	ON Semiconductor
File Size	119.99 KB
Description	PECL Clock Synthesizer
Datasheet	NB4N507A Datasheet
Additional preview pages of the NB4N507A datasheet.

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Full PDF Text Transcription

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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 Phase-Locked-Loop (PLL) techniques, will produce output clocks up to 200 MHz. In addition, the PLL circuitry will produce a 50% duty cycle square-wave clock output (see Figure 7). 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.

Published: Jan 12, 2007 |