AB1561 Headset Reference Design
User Guide
© 2020 Airoha Technology Corp.
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1) The EVK components shown in red indicate the buttons on the EVK. From left to right, these buttons are
Regen, PIO2, PIO3, PIO4, PIO5, PIO7 and PIO8.
2) The EVK components shown in green indicate the LEDs. The LEDs are shown from left to right as LED0 and
LED1. These LEDs have different colors.
3) The EVK component shown in yellow is the earphone jack. The earphone jack is used for listening to the
voice prompt and ringtone that are related to a specific MMI functionality.
Figure 2. EVK components