
Cypress Semiconductor
Features
• Flash-programmable capacitor tuning array for low
ppm initial frequency clock output
• Low clock output jitter
— 4 ps typ. RMS period jitter
— ±30 ps typ. peak-to-peak period jitter
• Flash-programmable dividers
• Two-pin programming interface
• On-chip oscillator runs from 10–48-MHz crystal
• Five selectable post-divide options, using reference
oscillator output
• Programmable asynchronous or synchronous OE and
PWR_DWN modes
• 2.7V to 3.6V operation
• Controlled rise and fall times and output slew rate
Benefits
• Enables fine-tuning of output clock frequency by
adjusting CLoad of the crystal
• Allows multiple programming opportunities to correct
errors, and control excess inventory
• Enables programming of output frequency after
packaging
• PPM clock output error can be adjusted in package
• Provides flexibility in output configurations and testing
• Enables low-power operation or output enable function
• Provides flexibility for system applications through
selectable instantaneous or synchronous change in
outputs
• Enables encapsulation in small-size, surface-mount
packages