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FIBOCOM SU806 Series Hardware Guide
Page 30 of 91
VDDCAMCORE
1.00625-1.4
1.2
400
VDD2V8
1.8-3.3
2.8
200
VIB_DRV_N
1.8-3.3
3.3
100
3.2 Control Signal
3.2.1 Power on/off
SU806 series module provides one-
way power on/off control signal to module’s power on/off, restart and
sleep/wake up. Its pin definition is shown as follow table:
Table 3-5 Power on/off signal
Pin Name
Pin
Number
I/O
Description
Note
KEY_PWR_ON
114
DI
Active low, module power on/off, restart,
sleep/wake up the module
-
CBL_PWR_N
261
DI
Active low, just have module power on function
-
3.2.1.1 Power on
After module’s VBAT pin is powered, pull down KEY_PWR_ON or CBL_PWR_N pin for 3.5s~6s can
trigger module power on. The button control and OC drive power on reference design is shown as follows:
S1
KEY_PWR_ON
Close to S1
TVS
1K
Figure 3-4 Button power on reference design
