PCK2020 データシートの表示（PDF） - Philips Electronics
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PCK2020 Datasheet PDF : 16 Pages
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Philips Semiconductors
CK00 (100/133MHz) spread spectrum
differential system clock generator
Product specification
PCK2020
VDD
PULSE
GENERATOR
VI
RT
D.U.T.
VO
CL
S1
2<VDD
Open
VSS
500Ω
500Ω
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2<VDD
VSS
VDD = VDDQ2 or VDDQ3, DEPENDS ON THE OUTPUT
Figure 6. Host clock measurements
SW00574
2.5 V CLOCKING
INTERFACE
2.0 V
1.25 V
0.4 V
THKP
DUTY CYCLE
THKH
TRISE
TFALL
THKL
3.3 V CLOCKING
INTERFACE
(TTL)
2.4 V
1.5 V
0.4 V
TPKP
DUTY CYCLE
TPKH
TRISE
TFALL
TPKL
Figure 7. 2.5 V/3.3 V clock waveforms
SW00575
2000 Nov 13
14
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