ICS7152A datasheet pdf

ICS7152A MDS 7152A A1Revision 102005 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com Spread Spectrum Clock Generator Description The ICS7152A-02 and -11 are clock generators for EMI (Electromagnetic Interference) reduction (see below for frequency ranges and multiplier ratios). Spectral peaks are attenuated by modulating the system clock frequency. Down or center spread profiles are selectable. Down spread will not exceed the maximum frequency of an unspread clock, and center spread does not change the average operating frequency of the system ICS offers many other clocks for computers and computer peripherals. Consult ICS when you need to remove crystals and oscillators from your board. Features •Operating voltage of 3.3 V ±0.3 V •Packaged in 8-pin SOIC •Input frequency range of 16.6 to 134.0 MHz •Output frequency range of 16.6 to 134.0 MHz •Provides a spread spectrum clock output (±0.5%, ±1.5% center spread; -1.0%, -3.0% down spread) •Low cycle-to-cycle jitter - less than 100 ps •Advanced, low-power CMOS process •Industrial and commercial temperature ranges •Available in Pb (lead) free package •Pin compatible with Fujitsu MB88152-102 and -111 Block Diagram Product Lineup ProductInput Frequency RangeModulation TypeModulation Enable Pin ICS7152AM-02, ICS7152AMI-0240.0 MHz to 134.0 MHzDown spread Ye s ICS7152AM-11, ICS7152AMI-1116.6 MHz to 67.0 MHzCenter spread PLL Clock Synthesis and Spread Spectrum Circuitry SEL FREQ CKOUT GND VDD Clock Buffer/ Crystal Ocsillator XIN XOUT External caps required with crystal for accurate tuning of the clock XENS

Features

• •Operating voltage of 3.3 V ±0.3 V
• •Packaged in 8-pin SOIC
• •Input frequency range of 16.6 to 134.0 MHz
• •Output frequency range of 16.6 to 134.0 MHz
• •Provides a spread spectrum clock output (±0.5%,
• •Low cycle-to-cycle jitter - less than 100 ps
• •Advanced, low-power CMOS process
• •Industrial and commercial temperature ranges
• •Available in Pb (lead) free package
• •Pin compatible with Fujitsu MB88152-102 and -111