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19
HSDP
20
HSDM
21
VBAT
22
RESET
23
BT_WAKE_HOST
24
GPIO7
25
HOST_WAKE_BT
26
EECS
27
EESK
28
GPIO4
29
GND
30
BT_ANT
31
GND
5. Typical Application Circuit
NOTE：
a.
RF traces need to keep 50 ohm impedance.
b.
PIN_22 actives low USB system reset.
c.
VBAT 3.3V for main power.
USB 2.0 differential line
USB 2.0 differential line
3.3V Main Power Supply
System reset signal active low
BT wake up host
HOST wake up WLAN /SPI flash data line SIO3(NC)
HOST wake up BT
SPI flash chip select pin(NC)
SPI flash clock pin(NC)
SPI flash data line SIO0(NC)
Ground connections
BT _ANT
Ground connections
Figure 5
7
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