PCS3I2191A

April 2007 rev 0.2 Spread Spectrum Clock Generator Features PCS3P2191A www.DataSheet4U.com output. PCS3P2191A offers seven selectable centre spread options of ±0.5% to ±2.0%, and a no spread option. (Refer Spread reduces Deviation Selection Table). PCS3P2191A electromagnetic interference Generates four 4X low EMI spread spectrum clocks Input frequency: 15MHz Output frequency: 60MHz Internal loop filter minimizes external components and board space Selectable Centre Spread frequency deviation: ±0.5%, ±0.75%, ± 1.0%, ± 1.25%, ± 1.5%, ± 1.75% ± 2.0% (EMI) at the clock source, allowing system wide reduction of EMI of all clock dependent signals. The PCS3P2191A allows significant system cost savings by reducing the number of circuit board layers, ferrite beads, and shielding that are traditionally required to pass EMI regulations. The PCS3P2191A uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method. The Device is available in 16 Pin TSSOP package, in Commercial and Industrial temperature range. 3.3V ± 0.3V Operating Voltage Commercial and Industrial temperature range 16-pin TSSOP Package Advanced low power CMOS process Product Description PCS3P2191A is a versatile spread spectrum frequency modulator that generates four low EMI 4x clocks at the Application PCS3P2191A is targetted for LCD panel application Block Diagram S2 S1 S0 VDD 2 PLL Modulation CLKIN / XIN XOUT Crystal Osc...