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Компоненты Описание
CXD2951GA-4 Просмотр технического описания (PDF) - Sony Semiconductor
Номер в каталоге
Компоненты Описание
производитель
CXD2951GA-4
Single Chip GPS LSI
Sony Semiconductor
CXD2951GA-4 Datasheet PDF : 26 Pages
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Radio Pin Description
Pin
No.
Symbol
Standard
pin voltage
[V]
30 RADIOSUB
0
31 V
DD
PLL
1.8
32 V
SS
PLL
0
33 V
DD
CP
1.8
Equivalent circuit
V
DD
CP
IF2V
CC
CXD2951GA-4
Description
Radio GND
PLL 1.8V
PLL GND
Charge pump 1.8V
34 LPFIF
0.8
34
1k
35 LPFRF
V
DD
CP
V
SS
CP
0.9
1k
35
39 VCODECAP 0.65
36 V
SS
CP
0
37 V
DD
VCO
1.8
38 V
SS
VCO
0
40 RFSUB
0
42 NRING
1.8
V
SS
CP
IF PLL loop filter
connection
5k
IF2GND
V
DD
VCO
IF1V
CC
RF PLL loop filter
connection
1k
1k
V
SS
VCO
IF1V
CC
39
Capacitor connection
for decoupling the
VCO bias circuit
Charge pump GND
VCO 1.8V
VCO GND
RF GND
LNA 1.8V
43 RFRREF
0.1
43
250
IF1GND
– 10 –
External resistor
connection
(LNA, RF mixer bias)
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