PDF ICS7152 Data sheet ( Hoja de datos )

Número de pieza	ICS7152
Descripción	Spread Spectrum Clock Generator
Fabricantes	Integrated Circuit Systems
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No Preview Available ! www.DataSheet4U.com ICS7152 Spread Spectrum Clock Generator Description The ICS7152-01, -02, -11, and -12 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. Center spread maintains an average frequency equal to an unspread clock. Down spread meets maximum frequency specs over the entire modualtion cycle. 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) • Advanced, low-power CMOS process • Industrial temperature range available • Available in Pb (lead) free package Block Diagram VDD SEL FREQ XENS XIN XOUT DataSheet4PUL.LcColmock Synthesis and Spread Spectrum Circuitry Clock Buffer/ Crystal Ocsillator External caps required with crystal for accurate tuning of the clock GND CKOUT Product Lineup Product ICS7152M-01, ICS7152MI-01 ICS7152M-02, ICS7152MI-02 ICS7152M-11, ICS7152MI-11 ICS7152M-12, ICS7152MI-12 Input Frequency Range 16.6 MHz to 67 MHz 40.0 MHz to 134.0 MHz 16.6 MHz to 67.0 MHz 40.0 MHz to 134.0 MHz Modulation Type Modulation Enable Pin Down spread Center spread Yes DataShee MDS 7152 E 1 Revision 012306 DataSheet4U.com Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com DataSheet4 U .com 1 page www.DataSheet4U.com ICS7152 Spread Spectrum Clock Generator DC Electrical Characteristics et4U.com Unless stated otherwise, VDD = 3.3 V ±0.3 V, Ambient Temperature -40 to +85°C Parameter Symbol Conditions Min. Typ. Operating Voltage VDD 3.0 3.3 Supply Current IDD No load, at 3.3 V 14 Input High Voltage VIH SEL, FREQ, XENS XIN, Input slew rate 3 V/ns, 16.6 to 100 MHz VDD x 0.8 VDD x 0.8 XIN, Input slew rate 3 V/ns, 100 to 134 MHz VDD x 0.9 Input Low Voltage VIL SEL, FREQ, XENS XIN, Input slew rate 3 V/ns, 16.6 to 100 MHz GND GND XIN, Input slew rate 3 V/ns, 100 to 134 MHz GND Output High Voltage Output Low Voltage Input Capacitance VOH CKOUT, IOH = -4 mA VDD - 0.5 VOL CKODaUtTa,SIOheLe=t44Um.cAom CIN XIN, SEL, XENS GND CKOUT, 16.6 to 67 MHz Load Capacitance CL CKOUT, 67 to 100 MHz CKOUT, 100 to 134 MHz Output Impedance ZO CKOUT, 16.6 to 134 MHz 25 Max. 3.6 28 VDD + 0.3 VDD + 0.3 VDD + 0.3 VDD x 0.20 VDD x 0.20 VDD x 0.10 VDD 0.4 16 15 10 7 Units V mA V V V V V V V V pF pF pF pF Ω DataShee MDS 7152 E 5 Revision 012306 DataSheet4U.com Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com DataSheet4 U .com 5 Page

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