CY25200

• Wide operating output (SSCLK) frequency range
     - 3200 MHz
• Programmable spread spectrum with nominal 31.5-kHz modulation frequency.
• Center spread: ±0.25% to ±2.5%
• Down spread: 0.5% to 5.0%
• Input frequency range:
     - External crystal: 830 MHz fundamental crystals
     - External reference: 8166 MHz Clock
• Integrated phase-locked loop (PLL)
• Programmable crystal load capacitor tuning array
• Low cycle-to-cycle Jitter
• 3.3V operation with 2.5V output clock drive option
• Spread spectrum On/Off function
• Power-down or Output Enable function
• Output frequency select option

Supply Voltage (V_DD) ...................................................................0.5 to +7.0V
DC Input Voltage.................................................................. 0.5V to VDD + 0.5
Storage Temperature (Non-condensing)..................................55°C to +125°C
Junction Temperature.............................................................. 40°C to +125°C
Data Retention @ T^_j = 125°C............................................................. > 10 Years
Package Power Dissipation..................................................................... 350 mW
Static Discharge Voltage..................... > 2000V (per MIL-STD-883, Method 3015)

The CY25200 is a Spread Spectrum Clock Generator (SSCG) IC used for the purpose of reducing Electro Magnetic Interference (EMI) found in today's high-speed digital electronic systems.

The device uses a Cypress proprietary Phase-Locked Loop (PLL) and Spread Spectrum Clock (SSC) technology to synthesize and modulate the frequency of the input clock. By frequency modulating the clock, the measured EMI at the fundamental and harmonic frequencies are greatly reduced. This reduction in radiated energy can significantly reduce the cost of complying with regulatory agency requirements (EMC) and improve time to market without degrading system performance.

The CY25200 uses a factory-programmable configuration memory array to synthesize output frequency, spread %, crystal load capacitor, clock control pins, PD# and OE options. The spread % is factory programmed to either center spread or down spread with various spread percentages. The range for center spread is from ±0.25% to ±2.50%. The range for down spread is from 0.5% to 5.0%. Contact the factory for smaller or larger spread % amounts if required.

The input to the CY25200 can be either a crystal or a clock signal. The input frequency range for crystals is 830 MHz, and for clock signals is 8166 MHz.

The CY25200 has six clock outputs, SSCLK1 to SSCLK6. The frequency modulated SSCLK outputs can be programmed from 3200 MHz.

The CY25200 products are available in a 16-pin TSSOP package with a commercial operating temperature range of 0 to 70°C.