PCS3P2537A

February 2008 rev 0.2 Low Power Peak EMI Reduction IC Features 1x Peak EMI Reduction IC Input Frequency: 18MHz-36MHz Output Frequency: 18MHz-36MHz Frequency Deviation @ 27MHz : -0.25% Modulation Rate @ 27MHz : 30.1KHz Supply Voltage: 3.3V±0.3V Operating current less than 8mA @ 27MHz. Spread Spectrum Enable Control. Low power CMOS design. 8 pin TDFN (2X2) COL package. Commercial temperature PCS3P2537A PCS3P2537A modulates the output of www.DataSheet4U.com a single PLL in order to “spread” the bandwidth of a synthesized clock, and more importantly, decreases the peak amplitudes of its harmonics. This results in significantly lower system EMI compared to the typical narrow band signal produced by oscillators and most frequency generators. Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation’. PCS3P2537A has a frequency range of 18MHz-36MHz, and accepts input clock either from a Crystal or from an external reference and locks on to it delivering a 1x spread spectrum clock output. It has an SSON control for enabling and disabling Spread Spectrum function. PCS3P2537A operates with a supply voltage of 3.3V, and is available in 8L TDFN(2X2) COL package over commercial temperature. Product Description PCS3P2537A is a versatile Low Power, 1x spread spectrum frequency modulator designed to reduce electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data depe...