Audio Interface; Audio Connectors - Motorola G30 Technical Information

Configuration

Audio Interface

The Developer Board includes analog and digital audio interfaces. The audio interface contains a
speaker - alert speaker, microphone, and a headset
Microphone
Connector
Connector
Speaker-Alert
Connector
Figure 2-14: Audio Connectors
Analog Audio path:
•
Handset mode: use "MIC" Input (pin 51), and differential speaker "ALRT_N", "ALRT_P"
outputs (pins 63, 65 of the G30).
•
Headset mode:
• When G30 with 70 pin connector is used, "MIC_HDST" Input (pin 57), "HDST_SPK" output
(pin 54).
• When G30 adapter is used, "MIC_HDST" Input (pin 57), "HDST_SPK" output (pin 67).
Note:
22
NA for
G30
Headset
In order to operate the G30 EVB with the G30 70 pin connector module, pin 54 of the 70
pin connector, must be manually shorted with pin 67 of the 70 pin connector.
The short can be implemented using 70 pin Header "P100".
G30 Developer's Kit
(Figure 2-14).
December 15, 2009