Specifications

WM_PRJ_Q2501_PTS_001 – 003
March 2004
© 2003 All rights reserved
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son
autorisation préalable.
1.5.3.2 GPS baseband architecture
SPI
CONTROLLER
CPU
MEMORY
MANAGEMENT
UNIT
R
F
I
N
T
E
R
F
A
C
E
GPS BASEBAND
RF GPS
FRONT END
RF GSM
FRONT END
FLASH
XTAL 32 KHZ
GPS main serial link UART2
UART SWITCH
GPS ENABLE
GSM ENABLE
GPS POWER
GSM POWER
GPS auxiliary serial link
UART0
ROM
SRAM
GPS
ACCELERATOR
GPS
CORRELATOR
GPS UART1 (not connected)
RESET CIRCUIT
FOR
GPS
FW
CTRL
W
I
S
M
O
Q
2
5
0
1
S
Y
S
T
E
M
C
O
N
N
E
C
T
O
R
ANTENNAS
CONTROL
RTC BACKUP
RTC 32kHz
I/O
CONTROLLER
GSM/GPRS BASEBAND
Figure 5: GPS baseband architecture
The GPS baseband chipset of WISMO Quik Q2501 is based on an ARM7TDMI
processor core and uses a 0.18 µm CMOS technology. The embedded GPS
processor includes a 16-channel GPS correlator.