Spectrum Digital TMS320DM368, Technical Reference

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Spectrum Digital, Inc
3-24 DM368 EVM Technical Reference
3.2.28 P3, Microphone In
The microphone input, P3, is a 3.5 mm. stereo jack. Both inputs are connected to the
microphone so it is monaural. The signal is connected to signals “MIC2R” and “MIC2L”
of the TVL320AIC3101. The signals on the plug are shown in the figure below.
3.2.29 P4, Line In
Connector P4 is an audio stereo line input to the TVL320AIC3101, U7, on the EVM.
The input connector is a 3.5 mm stereo jack. The signals on the mating plug are shown
in the figure below.
Table 28: P3, Microphone Input Jack
Pin # Signal Name
1 GND_AIC
2 MIC2L, MIC2R, U7, Pins 14,16
3 MIC2L, MIC2R, U7, Pins 14,16
4 GND_AIC
Table 29: P4, Audio Stereo Line In
Pin # AIC3101 Signal
1 GND_AIC
2 LINE1LP, U7, Pin 10
3 LINE1RP, U7, Pin 12
4 GND_AIC
Microphone In (tip and ring)
Ground (sleeve)
Figure 3-17, P3, Microphone Input Jack
Right Line In (tip)
Ground (sleeve)
Figure 3-18, P4, Audio Stereo Line In Jack
Left Line In (ring)