IMIFS782
Features
- Spread Spectrum clock generator (SSCG) with 1×, 2×, and 4× outputs
- 6- to 82-MHz operating frequency range
- Modulates external clocks including crystals, crystal oscillators, or ceramic resonators
- Programmable modulation with simple R-C external loop filter (LF)
- Center spread modulation
- 3V-5V power supply
- TTL-/CMOS-patible outputs
- Low short-term jitter
- Low-power Dissipation
- 3.3 VDC = 37 m W
- typical
- 5.0 VDC = 115 m W
- typical
- Available in 8-pin SOIC and TSSOP packages
Description
The Cypress FS781/82/84 are Spread Spectrum clock generator ICs (SSCG) designed for the purpose of reducing electromagnetic interference (EMI) found in today’s high-speed digital systems. The FS781/82/84 SSCG clocks use a Cypress-proprietary technology to modulate the input clock frequency, XIN, by modulating the frequency of the digital clock. By modulating the reference clock the measured EMI at the fundamental and harmonic frequencies of FSOUT is greatly reduced. This...
