SA1638 데이터 시트보기 (PDF) - Philips Electronics
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SA1638 Datasheet PDF : 26 Pages
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Philips Semiconductors
Low voltage IF I/Q transceiver
Product specification
SA1638
LSB
DATA
X1 or t5
X0 or t4
a1
tH
tSU
CLOCK
50%
FIRST CLOCK
MSB
a0
tSU
LAST CLOCK
FIRST CLOCK
tSU
STROBE
CLOCK
STROBE
tW
50%
CLOCK ENABLED
SHIFT IN DATA
Figure 4. Serial Input Timing Sequence
CLOCK
DISABLED
STORE DATA
SR00527
CLKIN
LOIN
÷2
CLKIN
L
R
X
P
N
ICP
REFERENCE
DIVIDER
“1” D
Q
C
R
R
MAIN
DIVIDER
“1”
R
D
C
X
Q
L
VCCCP
P
P-TYPE
CHARGE PUMP
CP
N-TYPE
CHARGE PUMP
N
VSS
Figure 5. Phase Detector Structure with Timing
SR00528
1997 Sept 03
11
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