參數(shù)資料
型號(hào): PCK2021DGG
廠商: NXP SEMICONDUCTORS
元件分類: XO, clock
英文描述: CK00 100/133 MHz spread spectrum differential system clock generator
中文描述: 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
封裝: 6.10 MM, PLASTIC, SOT-362-1, TSSOP-48
文件頁(yè)數(shù): 11/15頁(yè)
文件大?。?/td> 108K
代理商: PCK2021DGG
Philips Semiconductors
Product data
PCK2021
CK00 (100/133 MHz) spread spectrum differential
system clock generator
2001 Oct 11
11
AC WAVEFORMS
V
M
= 1.25 V @ V
DDL
and 1.5 V @ V
DD3
V
X
= V
OL
+ 0.3 V
V
Y
= V
OH
– 0.3 V
V
OL
and V
OH
are the typical output voltage drop that occur with the output load.
50%
HOST CLK
V
OH
V
SS
SW00962
50%
t
PERIOD
Figure 1. HOST CLOCK
V
DDL
V
IH
= 2.0 V
1.5 V
V
IL
= 0.7 V
V
OH
= 2.4 V
V
OL
= 0.4 V
V
SS
SYSTEM
MEASUREMENT
POINTS
COMPONENT
MEASUREMENT
POINTS
SW00668
Figure 2. 3.3 V clock waveforms
t
PLZ
t
PZL
V
I
SEL1,
SEL0
GND
V
DD
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
OL
V
OH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
V
SS
outputs
enabled
outputs
enabled
outputs
disabled
t
PHZ
V
M
V
M
V
M
t
PZH
V
X
V
Y
SW00662
Figure 3. State enable and disable times
PULSE
GENERATOR
R
T
V
I
DUT
V
O
C
L
V
DD
TEST
t
PLH
/t
PHL
t
PLZ
/t
PZL
t
PHZ
/t
PZH
S
1
Open
2 V
DD
V
SS
Open
V
SS
S
1
2
V
DD
V
DD
= V
DD3
500
500
SW00963
Figure 4. Load circuitry for switching times
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