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Texas Instruments MIXED SIGNAL PRODUCTS TPA0103 User Manual

Page 27

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Using The TPA0103 EVM With the Plug-N-Play Evaluation Platform

3-13

Details

3.3.4.2

Mute/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.

J

To switch the TPA0103 amplifier module between center channel
speaker and stereo headphone modes using the control signal from
the platform headphone jack, jumper JP6 to

MODE

J

For center channel only or 3-channel output modes (as selected by
EVM jumper S2) leave JP6

open.

3.3.4.3

Mute/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.

J

When JP6 is set to Mode, set JP8 to

Hi.

J

When JP6 is open, JP8 settings are ignored.