DESCRIPTION

The SY89429V is a general purpose, synthesized clock source targeting applications that require both serial and parallel interfaces. Its internal VCO will operate over a range of frequencies from 400MHz to 800MHz. The differential PECL output can be configured to be the VCO frequency divided by 2, 4, 8 or 16. With the output configured to divide the VCO frequency by 2, and with a 16MHz external quartz crystal used to provide the reference frequency, the output frequency can be specified in 1MHz steps.

FEATURES

■ 3.3V and 5V power supply options

■ 25MHz to 400MHz differential PECL outputs

■ 50ps peak-to-peak output jitter

■ Minimal frequency over-shoot

■ Synthesized architecture

■ Serial 3-wire interface

■ Parallel interface for power-on

■ Internal quartz reference oscillator driven by quartz crystal

■ Application Note (AN-07) for ease of design-ins

■ Available in 28-pin PLCC and SOIC packages

APPLICATIONS

■ Workstations

■ Advanced communications

■ High end consumer

■ High-performance computing

■ RISC CPU clock

■ Graphics pixel clock

■ Test equipment

■ Other high-performance processor-based applications