User's Manual

7
19
HSDP
USB 2.0 differential line
20
HSDM
USB 2.0 differential line
21
VBAT
3.3V Main Power Supply
22
RESET
System reset signal active low
23
BT_WAKE_HOST
BT wake up host
24
GPIO7
HOST wake up WLAN /SPI flash data line SIO3(NC)
25
HOST_WAKE_BT
HOST wake up BT
26
EECS
SPI flash chip select pin(NC)
27
EESK
SPI flash clock pin(NC)
28
GPIO4
SPI flash data line SIO0(NC)
29
GND
Ground connections
30
BT_ANT
BT _ANT
31
GND
Ground connections
5. Typical Application Circuit
Figure 5
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.