C9830
133 MHz Clock Generator for Intel 820 Chipset
Preliminary
Spectrum Spread Clocking
Center Spread Spectrum
Down Spread Spectrum
Figure 5a
Figure 5b
Spread Spectrum Selection
Notes:
Spreading %
BYTE5 Bits 7,6
•
+/- 0.25% applies to all frequencies.
BW1,BW0
•
- 0.5% and +/-0.5% apply to 100.2, 133.4 and 133.9MHz.
0,0
0,1
1,0
1,1
+/- 0.25 (Default)
- 0.5
+/- 0.125% applies to frequencies except 105, 110, 114, 120, 124
and 128.5MHz.
+/- 0.5
+/- 0.125
Table 3
Maximum Ratings
This device contains circuitry to protect the inputs
against damage due to high static voltages or electric
field; however, precautions should be taken to avoid
application of any voltage higher than the maximum
rated voltages to this circuit. For proper operation, Vin
and Vout should be constrained to the range:
VSS<(Vin or Vout)<VDD
Voltage Relative to VSS:
Voltage Relative to VDD:
Storage Temperature:
-0.3V
0.3V
-65°C to + 150°C
Operating Temperature:
Maximum Power Supply:
0°C to +70°C
5V
Unused inputs must always be tied to an appropriate
logic voltage level (either VSS or VDD).
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST
MILPITAS, CA 95035, USA TEL: 408-263-6300. FAX 408-263-6571
http://www.imicorp.com/
Rev 1.1
4/25/2000
Page 9 of 14
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