Technical information

Audio Interface
38 G24-L Module Hardware Description November 15, 2008
Analog Ground
The G24-L interface incorporates a dedicated analog ground contact, AGND pin 59, which is
internally connected to the G24's ground. The AGND signal is intended to provide a separate
ground connection for the application's external audio devices and circuits.
This signal provides an isolated ground connection directly from G24-L, which is separated from
the noisy digital ground of the application. It is recommended to connect this signal to analog
audio devices and circuits used by the application. Using a separate analog ground minimizes
audio noises and improves the audio circuit's immunity from external interferences.