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A reference circuit design is shown below.
Figure 26: Reference Circuit Design for Flashlight Interfaces
4.14. Keypad Interfaces
The module supports three keypads: PWRKEY for turning module on/off and VOL_UP and VOL_DOWN
to adjust the volume.
Table 27: Pin Definition of Keypad Interfaces
Pin Name
Pin No.
PWRKEY
39
VOL_UP
146
VOL_DOWN
147
4.15. Vibration Driver Motor Interfaces
The module supports eccentric rotating machines (ERM). The pin definition of vibrator drive interface is
listed below.
Table 28: Pin Definition of Vibration Driver Motor Interfaces
Pin Name
VIB_DRV
SC690A_Series_Hardware_Design
FLASH1_LED
FLASH2_LED
Module
I/O
Description
DI
Turn on/off the module
DI
Volume up
DI
Volume down
Pin No.
I/O
226
PO
D1
D2
Comment
Pull up to 1.8 V internally.
Active low.
If unused, keep this pin open.
If unused, keep this pin open.
Description
Vibration motor driver
Smart Module Series
Comment
68 / 105
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