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MPC92439KLF

Part Number	MPC92439KLF
Manufacturer	IDT
Description	LVPECL Clock Syntheesizer
Published	Oct 30, 2014
Detailed Description	900MHz, Low Voltage, LVPECL Clock Syntheesizer The MPC92439 is a 3.3 V compatible, PLL based clock synthesizer targeted ...
Datasheet	MPC92439KLF PDF File

Overview

900MHz, Low Voltage, LVPECL Clock Syntheesizer The MPC92439 is a 3.
3 V compatible, PLL based clock synthesizer targeted for high performance clock generation in mid-range to high-performance telecom, networking and computing applications.
With output frequencies from 3.
125 MHz to 900 MHz and the support of differential LVPECL output signals the device meets the needs of the most demanding clock applications.
Features • • • • • • • • • • • • • • • 3.
125 MHz to 900 MHz synthesized clock output signal Differential LVPECL output LVCMOS compatible control inputs On-chip crystal oscillator for reference frequency generation Alternative LVCMOS compatible reference input 3.
3V power supply Fully integrated PLL Minimal frequency overshoot Serial 3-wire programming interface Parallel programming interface for power-up 28-PLCC and 32-LQFP packaging 28-Lead and 32-lead Pb-free packages available SiGe Technology Ambient temperature range 0°C to + 70°C Pin and function compatible to the MC12439 and MPC9239 MPC92439 DATA SHEET 900MHZ LOW VOLTAGE CLOCK SYNTHESIZER FN SUFFIX(1) 28-LEAD PLCC PACKAGE CASE 776-02 EI SUFFIX(2) 28-LEAD PLCC PACKAGE CASE 776-02 Functional Description The internal crystal oscillator uses the external quartz crystal as the basis of its frequency reference.
The frequency of the internal crystal oscillator or external reference clock signal is multiplied by the PLL.
The VCO within the PLL operates over a range of 400 to 900 MHz.
Its output is scaled by a divider that is configured by either the serial or parallel interfaces.
The AC SUFFIX(2) crystal oscillator frequency fXTAL, the PLL feedback-divider M and the PLL post-divider N de32-LEAD LQFP PACKAGE termine the output frequency.
CASE 873A-03 The feedback path of the PLL is internal.
The PLL adjusts the VCO output frequency to be M times the reference frequency by adjusting the VCO control voltage.
Note that for K SUFFIX some values of M (either too high or too low) the PLL will not achieve phase lock.
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MPC92439KLF LVPECL Clock Syntheesizer - IDT

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