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WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU
®
Table of Figures
AUDIO
POWER
UART2
PCM
UART1
USB
SIM 1.8V/3V
EBI
DAC
ADC
GPIO
SPI1
I2C
SPI2
EXT_IT
RF
INTERFACE
SUPPLY INTERFACE
AUDIO FILTER
MEMORY
FLASH / SRAM
RF
FRONT END
RF
TRANSCEIVER
COAX
UFL
IMP
ANTENNA
Q
2
6
8
6
B
O
A
R
D
T
O
B
O
A
R
D
I
N
T
E
R
F
A
C
E
C
O
N
N
E
C
T
O
R
CHARGER
RTC
USB detection
KEYPAD
Figure 1: Functional architecture ................................................................. 19
Figure 2: Power supply during burst emission.................................................. 22
Figure 3: Start-up current waveform................................................................. 24
Figure 4: SPI Timing diagrams,Mode 0,Master,4 wires .................................... 34
Figure 5: SPI Timing diagrams with LOAD signal, Mode 0, Master, 4 wires ..... 35
Figure 6: I²C Timing diagrams, Master ............................................................. 36
Figure 7: Ni-Cd / Ni-Mh charging waveform ..................................................... 53
Figure 8: Li-Ion full charging waveform ............................................................ 55
Figure 9: Power-ON sequence (no PIN code activated) ..................................... 59
Figure 10: Power-OFF sequence ....................................................................... 61
