Smart Module Series
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4.17. LED Driver Interface
The following is the pin definition of LED driver interfaces.
Table 30: Pin Definition of LED Driver Interface
A reference circuit design for LED interfaces is shown below.
LED_GRN
LED_RED
Module
LED_BLU
R1
D3
R3
0 R
D1
0 R
R2
D2
0 R
Figure 23: Reference Circuit Design for LED Interfaces
4.18. Audio Interfaces
The module provides three pairs of analog input/output channels and two digital input/output channels.
channels. The following table shows the pin definition.
Table 31: Pin Definition of Audio Interfaces
Pin Name
Pin No.
I/O
Description
Comment
LED_RED
23
AO
Current source for the red LED.
Sources up to 12 mA max
per channel.
LED_GRN
24
AO
Current source for the green LED.
LED_BLU
25
AO
Current source for the blue LED.
Pin Name
Pin
No.
I/O
Description
Comment
DMIC1_DATA
45
DIO
Digital microphone 1 data
