PCK2023DL 查看數據表（PDF） - Philips Electronics

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PCK2023DL

CK408 (66/100/133/200 MHz) spread spectrum differential system clock generator

Philips Electronics 

Philips Semiconductors

CK408 (66/100/133/200 MHz) spread

spectrum differential system clock generator

Product data

PCK2023

AC WAVEFORMS

VM = 1.25 V @ VDDL and 1.5 V @ VDD3

VX = VOL + 0.3 V

VY = VOH – 0.3 V

VOL and VOH are the typical output voltage drop that occur with the

output load.

CPUCLK

@133MHz

1.25V

3v66

@66MHz

1.5V

THPOFFSET

CPU leads 3V66

Figure 16. Host clock

VDDQ2

VSS

VDDQ3

VSS

SW00569

COMPONENT

MEASUREMENT

2.5VOLT MEASURE POINTS

POINTS

VOH = 2.0V

VDDQ2

VIH = 1.7V

1.25V

VOL = 0.4V

VIL = 0.7V

VSS

COMPONENT

MEASUREMENT

3.3VOLT MEASURE POINTS

POINTS

VOH = 2.4V

VDDQ3

VIH = 2.0V

1.5V

VOL = 0.4V

VIL = 0.7V

VSS

SYSTEM

MEASUREMENT

POINTS

SYSTEM

MEASUREMENT

POINTS

SW00570

Figure 17. 3.3 V clock waveforms

VI

SEL1,

SEL0

VM

GND

VDD

OUTPUT

LOW-to-OFF

OFF-to-LOW

VOL

tPLZ

VX

tPHZ

tPZL

VM

tPZH

VOH

OUTPUT

HIGH-to-OFF

OFF-to-HIGH

VSS

Outputs

enabled

VY

Outputs

disabled

VM

Outputs

enabled

SW00571

Figure 18. State enable and disable times

2001 Sep 07

25

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