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ACS1790T

Part Number	ACS1790T
Manufacturer	Semtech
Description	PLL Frequency Synthesizer
Published	May 11, 2016
Detailed Description	SCL SDA A0 FBCLK A1 VDDD2 ADVANCED COMMUNICATIONS PRODUCT GROUP Introduction The ACS1790T is a high-performance, low ph...
Datasheet	ACS1790T PDF File

Overview

SCL SDA A0 FBCLK A1 VDDD2 ADVANCED COMMUNICATIONS PRODUCT GROUP Introduction The ACS1790T is a high-performance, low phase noise, programmable frequency synthesizer with ultra-fine dynamic output frequency control.
It can be used as a companion to a compatible ToPSync™ device to generate outputs locked to an external reference source or standalone for standard frequency generation for common applications.
The circuit includes an integrated VCO, loop filter, phase-and-frequency detector and output dividers.
The default power-up mode is definable by pin settings and once operational the ACS1790T is fully-programmable via an I2C interface.
The ACS1790T requires only a low-speed external clock input for operation.
When used in conjunction with a compatible ToPSync® device in a Synchronous Ethernet system the ACS1790T allows the Ethernet transmit clocks to be derived initially from the local reference oscillator and subsequently frequency-locked to an external reference source once the sys...

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ACS1790T PLL Frequency Synthesizer - Semtech

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