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參數(shù)資料
| 型號： | ICS525-01RT |
| 英文描述： | XTAL CER SMT 6X3.5 2PAD |
| 中文描述： | 奧斯卡⑩用戶可配置時鐘 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 70K |
| 代理商： | ICS525-01RT |
ICS525-01/02
OSCaR User Configurable Clock
MDS 525-01/02 I
Integrated Circuit Systems, Inc. 525 Race Street San Jose CA 95126(408) 295-9800tel www.icst.com
5
Revision 071100 Printed 11/13/00
The dividers are expressed as integers, so that if a 66.66 MHz output is desired from a 14.31818 input, the
Reference Divider Word (RDW) should be 59, and the VCO Divider Word (VDW) should be 276, with
an Output divider (OD) of 2. In this example, R6:R0 is 0111011, V8:V0 is 100010100, and S2:S0 is 001.
Since all of these inputs have pull-up resistors, it is only necessary to ground the zero pins, namely V7, V6,
V5, V3, V1, V0, R6, R2, S2, and S1.
To determine the best combination of VCO, reference, and output divider, use the ICS525 Calculator on
our Web site: http://www.icst.com/products/ics525inputForm.html. This online form is easy to use and
quickly shows you up to three options for these settings.
You may also fax this page to MicroClock/ICS at 408 295 9818(fax), or contact us via our website at
www.icst.com. Be sure to indicate the following:
Your Name ________________ Company Name___________________ Telephone_________________
Respond by e-mail (list your e-mail address) __________________or fax number ___________________
Desired input crystal/clock (in MHz) _______________ Desired output frequency________________
VDD = 3.3V or 5V ___________
Duty Cycle: 40-60% _______ or 45-55% required________
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