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AD9549

Part Number	AD9549
Manufacturer	Analog Devices
Description	Dual Input Network Clock Generator/Synchronizer
Published	Apr 13, 2007
Detailed Description	FEATURES Flexible reference inputs Input frequencies: 8 kHz to 750 MHz Two reference inputs Loss of reference indicators...
Datasheet	AD9549 PDF File

Overview

FEATURES Flexible reference inputs Input frequencies: 8 kHz to 750 MHz Two reference inputs Loss of reference indicators Auto and manual holdover modes Auto and manual switchover modes Smooth A-to-B phase transition on outputs Excellent stability in holdover mode Programmable 16 + 1-bit input divider, R Differential HSTL clock output Output frequencies to 750 MHz Low jitter clock doubler for frequencies of >400 MHz Single-ended CMOS output for frequencies of <150 MHz Programmable digital loop filter (<1 Hz to ~100 kHz) High speed digitally controlled oscillator (DCO) core Direct digital synthesizer (DDS) with integrated 14-bit DAC Excellent dynamic performance Programmable 16 + 1-bit feedback divider, S Software controlled power-down Available 64-lead LFCSP package Dual Input Network Clock Generator/Synchronizer AD9549 APPLICATIONS Network synchronization Reference clock jitter cleanup SONET/SDH clocks up to OC-192, including FEC Stratum 3/3E reference clocks Wireless base station, co...

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