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ICS525-01RT Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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ICS525-01RT Datasheet(HTML) 1 Page - Integrated Circuit Systems |
1 / 8 page • Packaged as 28 pin SSOP (150 mil body) • ICS525-01 with output frequencies up to 160 MHz • ICS525-02 with output frequencies up to 250 MHz • User determines the output frequency by setting all internal dividers • Eliminates need for custom oscillators • No software needed • Online ICS525 calculator at www.icst.com/products/ics525inputForm.html • Pull-ups on all select inputs • Input crystal frequency of 5 - 27 MHz • Input clock frequency of 2 - 50 MHz • Very low jitter • Duty cycle of 45/55 up to 200 MHz • Operating voltages of 3.0 to 5.5V • Ideal for oscillator replacement • Industrial temperature versions available • For Zero Delay, refer to the ICS527 ICS525-01/02 OSCaR™ User Configurable Clock MDS 525-01/02 I 1 Revision 071100 Printed 11/13/00 Integrated Circuit Systems, Inc. • 525 Race Street •San Jose• CA • 95126•(408) 295-9800tel• www.icst.com The ICS525-01 and ICS525-02 OSCaR™ are the most flexible way to generate a high quality, high accuracy, high frequency clock output from an inexpensive crystal or clock input. The name OSCaR stands for OSCillator Replacement, as they are designed to replace crystal oscillators in almost any electronic system. The user can easily configure the device to produce nearly any output frequency from any input frequency by grounding or floating the select pins. Neither microcontroller nor software nor device programmer are needed to set the frequency. Using Phase-Locked-Loop (PLL) techniques, the device accepts a standard fundamental mode, inexpensive crystal to produce output clocks up to 250 MHz. It can also produce a highly accurate output clock from a given input clock, keeping them frequency locked together. For similar capability with a serial interface, use the ICS307. For simple multipliers to produce common frequencies, refer to the LOCO family of parts, which are smaller and more cost effective. Block Diagram Description Features Crystal or clock input X1/ICLK X2 Reference Divider Phase Comparator, Charge Pump, and Loop Filter Crystal Oscillator VCO Divider VCO Output Buffer 2 VDD GND S2:S0 CLK Output Buffer REF Output Divider R6:R0 V8:V0 2 3 9 7 PD optional |
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