PCK2010 데이터 시트보기 (PDF) - Philips Electronics
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PCK2010 Datasheet PDF : 16 Pages
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Philips Semiconductors
CK98 (100/133MHz) Spread Spectrum System Clock
Generator
Preliminary specification
PCK2010
1 (inactive) 0 (100MHz) 0
1
(Reserved)
(Reserved)
100MHz, No Center
Spread ±0.5%
1 (inactive) 0 (100MHz) 1
0
100MHz, No
Spread Spectrum
Inactive
100MHz, No Spread
Spectrum
1 (inactive) 0 (100MHz) 1
1
100MHz, No
Spread Spectrum
Active
100MHz, No Down
Spread – 0.5%
1 (inactive) 1 (133MHz) 0
0
Test Mode
Active
Test Mode
1 (inactive) 1 (133MHz) 0
1
(Reserved)
(Reserved)
133MHz, No Center
Spread ±0.5%
1 (inactive) 1 (133MHz) 1
0
133MHz, No
Spread Spectrum
Inactive
133MHz, No Spread
Spectrum
1 (inactive) 1 (133MHz) 1
1
133MHz, No
Spread Spectrum
Active
133MHz, No Down
Spread – 0.5%
AC WAVEFORMS
VM = 1.25V @ VDDQ2 and 1.5V @ VDDQ3
VX = VOL + 0.3V
VY = VOH –0.3V
VOL and VOH are the typical output voltage drop that occur with the
output load.
Active
Inactive
Active
Active
Active
Inactive
Active
CPUCLK
@133MHz
1.25V
VDDQ2
VSS
3v66
@66MHz
1.5V
THPOFFSET
CPU leads 3V66
VDDQ3
VSS
SW00354
Figure 1. CPUCLK to 3V66 offset
CPUCLK
@ 133MHz
1.25V
VDDQ2
VSS
IOAPIC
@ 16.6MHz
1.25V
THPOFFSET
CPUCLK leads IOAPIC
VDDQ2
VSS
SW00357
Figure 3. CPU to IOAPIC offset
3V66
@ 66MHz
1.5V
VDDQ3
VSS
PCICLK
@ 33MHz
1.5V
THPOFFSET
3V66 leads PCICLK
Figure 2. 3V66 to PCI offset
VDDQ3
VSS
SW00356
2.0
2.5V CLOCKING 1.25
INTERFACE
0.4
THKP
DUTY CYCLE
THKH
TRISE
TFALL
THKL
TPKH
TPKP
2.4
3.3V CLOCKING
INTERFACE
1.5
(TTL)
0.4
TRISE
TFALL
TPKL
SW00242
Figure 4. 2.5V/3.3V clock waveforms
1999 Mar 01
12
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