3. TECHNICAL BRIEF
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3.12 KEY BACLKLIGHT LED Interface
Key Backlight LED is controlled by Current source LED driver port(LED3) of RT8966 like as LCD Backlight.
Figure 3.12.1 Key Backlight Block
LD206
VBAT
R262
0
LD204
LD203
LD202
LD205
LD201
R243
560
R245
560
560
R246
R247
560
560
R248
0
R263
VA215
1u
C251
560
R244
KEY_LED