MPC92439EI

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 th...