Texas Instruments TPA005D12 3.4.4.2Mute/Mode Select JP6, 3.4.4.3Mute/Mode Polarity Select JP8

Using The TPA005D12 Class-D EVM With the Plug-N-Play Platform

3.4.4.2Mute/Mode Select (JP6)

A 3-pin jumper header (JP6) on the platform, functioning as an SPDT switch, routes the control signal from the headphone jack to either the mute control input pin or the mode control input pin of the evaluation module.

JSet jumper JP6 to MODE when a separate headphone amplifier is NOT installed in U5.

JSet jumper JP6 to MUTE when a separate headphone amplifier IS installed in U5. This will cause the TPA005D12 class-D EVM to shut down when a plug is inserted into platform headphone jack J10.

3.4.4.3Mute/Mode Polarity Select (JP8)

A second 3-pin jumper header (JP8) on the platform selects the control signal polarity by connecting either the active-high or the active-low line from the headphone jack to jumper JP6.

-Set jumper JP8 to Lo for normal class-D operation when a separate headphone amplifier IS installed in U5.

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