This document is the technical manual of CY25701JXC/FJXC series crystal oscillators produced by Cypress Semiconductor Corporation. This series of crystal oscillators has a frequency range of 10-166MHz, programmable duty cycle, internal PLL, and 3.3V working voltage.
The CY25701JXC/FJXC is a Spread Spectrum Crystal Oscillator (SSXO) IC designed to reduce electromagnetic interference (EMI) in high-speed digital systems. It utilizes Cypress proprietary PLL and Spread Spectrum Clock technology to synthesize and modulate the frequency of an embedded input crystal, thereby reducing radiated energy at fundamental and harmonic frequencies.
| Output clock frequency range | 10–166 MHz |
|---|---|
| Supply voltage | 3.3V |
| Typical cycle-to-cycle jitter (SSCLK ≥133 MHz) | 85 ps |
| Operating temperature range | -20 to 70°C |
| Package type | 4-pin Plastic JE |
The device supports center spread from ±0.25% to ±2.0%, down spread from –0.5% to –4.0%, and no spread (±0.0%).
Yes, field and factory programming is available for samples and manufacturing by submitting requests to a local Cypress Field Application Engineer.
The frequency modulation is programmed at 31.5 kHz for all SSCLK frequencies from 10 to 166 MHz.