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CXD2951GA-4 Просмотр технического описания (PDF) - Sony Semiconductor
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Компоненты Описание
Список матч
CXD2951GA-4
Single Chip GPS LSI
Sony Semiconductor
CXD2951GA-4 Datasheet PDF : 26 Pages
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System Block Diagram
CXD2951GA-4
1575.42MHz
LNA
TCXO
CPU
Freq.
Synthesizer
RF/IF
1575.42MHz
→
1.023MHz
BPF
SAW
TCXO
Reference clock
18.414MHz
(GPS, Sony standard)
Down
Converter
LPF
1 bit
LNA
1.023MHz
Acquisition Block
•
Acquire GPS signals
Tracking Block
•
Locking to GPS signals
•
12ch correlations
Costas Loop & DLL
Computation
& Control
•
Control Acquisition
& Tracking block
•
Position calculating
ARM7TDMI
RTC
Timer
3ch
RAM
72KB
ROM
288KB
I/O
UART
A/D
X'tal
32.768kHz
–3–
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