ACS1790T PLL Frequency Synthesizer

Semtech

Description

SCL SDA A0 FBCLK A1 VDDD2 ADVANCED COMMUNICATIONS PRODUCT GROUP Introduction The ACS1790T is a high-performance, low phase noise, programmable freque.
6 DEVICE OPERATION 7 THE VCO PLL BLOCK 7 THE OUTPUT DIVIDER BLOCK8 THE OUTPUT STAGE 8 THE CONTROL BLOCK 8 Reset9 USING THE ACS1790T 9 HARDWARE DEVICE.

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Datasheet Specifications

Part number: ACS1790T
Manufacturer: Semtech
File Size: 1.08 MB
Datasheet: ACS1790T-Semtech.pdf
Description: PLL Frequency Synthesizer

Features

* Optimised for Synchronous Ethernet, SONET and SDH operation
* Meets RMS jitter requirements of Gigabit Ethernet, 10 Gigabit Ethernet and OC-48 / STM16
* Default options for 25 MHz & 125 MHz or 25 MHz & 156.25 MHz outputs at reset
* High frequency LVPECL output: 10 MHz
* 200

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

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ACS1790T PLL Frequency Synthesizer Semtech

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