Audio Connectors - Spectrum Digital TMS320VC5509A EVM PLUS Technical Reference

3.4 Audio Connectors

The VC5509A EVM PLUS has 4 audio connectors. They are described in the following
sections.
3.4.1 J301, Microphone Connector
The input is a 3.5 mm. stereo jack. Both inputs are connected to the microphone so it is
monaural. The signals on the plug are shown in the figure below.
3.4.2 J303, Audio Line In Connector
The audio line in is a stereo input. The input connector is a 3.5 mm stereo jack. The
signals on the mating plug are shown in the figure below.
Ground
Microphone In
Microphone Bias
Figure 3-2, Microphone Stereo Jack
Ground
Right Line In
Left Line In
Figure 3-3, Audio Line In Stereo Jack
Spectrum Digital, Inc
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