ICS7151

www.DataSheet4U.com ICS7151 Spread Spectrum Clock Generator Description The ICS7151-10, -20, -40, and -50 are clock generators for EMI (Electro Magnetic Interference) reduction (see below for frequency ranges and multiplier ratios). Spectral peaks can be attenuated by slightly modulating the oscillation frequency. Both down and center spread profiles are selectable. Down spread maintains an average frequency less than an unspread clock, and will not exceed the maximum frequency of an unspread clock. Features Operating voltage of 3.3 V ±0.3 V Packaged in 8-pin SOIC Available in Pb (lead) free package Input frequency range of 16.5 to 33.4 MHz Output frequency ranges of 8.3 to 16.7 MHz, 16.5 to 33.4 MHz, 33.3 to 66.7 MHz, 66.6 to 133.4 MHz ±1.5% center spread; -1.0%, -3.0% down spread) Provides a spread spectrum clock output (±0.5%, Multiplication rates of x1/2, x1, x2, and x4 Advanced, low-power CMOS process Block Diagram VDD S1:0 2 DataShee ENS PLL Clock Synthesis DataSheet4U.com and Spread Spectrum Circuitry CKOUT XIN Clock Buffer/ Crystal Ocsillator XOUT External caps required with crystal for accurate tuning of the clock GND Product Lineup Product Input Frequency Range Multiplier Ratio Output Frequency Range ICS7151M-10, ICS7151MI-10 ICS7151M-20, ICS7151MI-20 ICS7151M-40, ICS7151MI-40 ICS7151M-50, ICS7151MI-50 16.5 MHz to 33.4 MHz 16.5 MHz to 33.4 MHz 16.5 MHz to 33.4 MHz 16.5 MHz to 33.4 MHz X1 X2 X4 X1/2 16.5 MHz to 33.4 MHz 33.3 MHz to 66...