Texas Instruments TPA0242 manual Mute/Mode Select JP6, Mute/Mode Polarity Select JP8

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Using The TPA0242 EVM With the Plug-N-Play Evaluation Platform

3.3.4.2Mute/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 shutdown control input pin or the mode control input pin of the evaluation module.

JTo shut down the TPA0242 amplifier module using the control signal from the platform headphone jack, jumper JP6 to MUTE

JTo switch the output mode of the TPA0242 amplifier between BTL and single-ended using the control signal from the platform headphone jack, jumper JP6 to MODE

3.3.4.3Mute/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.

-When JP6 is set to Mute, use the following JP8 settings for the TPA0242:

J To shut down the TPA0242 amplifier module when a plug is inserted into the headphone jack, jumper JP8 to Lo (this is the typical setting).

J To shut down the TPA0242 amplifier module until a plug is inserted into the headphone jack, jumper JP8 to Hi.

-When JP6 is set to Mode, use the following JP8 settings for the TPA0242:

J To switch the TPA0242 amplifier module to the single-endedoutput mode when a plug is inserted into the headphone jack, jumper JP8 to Hi (this is the typical setting).

J To switch the TPA0242 amplifier module to the BTL output mode when a plug is inserted into the headphone jack, jumper JP8 to Lo.

Details 3-13

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Contents Users Guide Important Notice Related Documentation From Texas Instruments PrefacePage Contents Tables FiguresIntroduction Feature Highlights Description TPA0242 EVM SpecificationsIntroduction Quick Start ±2. Typical TPA0242 EVM Jumper Settings±1. Quick Start Platform Map PrecautionsQuick Start List for Platform ±3. Platform Jumper and Switch Settings for the TPA0242±2. Module Preparation ±4. Typical TPA0242 EVM Jumper Settings±3. Quick Start Module Map Quick Start List for Stand-AloneControl inputs Details ±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform ±2. TPA0242 EVM TPA0242 Audio Power Amplifier Evaluation Module1 TPA0242 Audio Amplifier IC ±3. TPA0242 EVM Schematic DiagramInputs and Gain ±4. TPA0242 Amplifier ICDifferential Input ±1. TPA0242 EVM BTL Volume SettingsSingle-Ended Operation Depop CircuitryBTL Operation EVM Removal Installing and Removing EVM BoardsEVM Insertion ±5. TPA0242 EVM Jumpers and Switches 2 TPA0242 Module Jumper Settings and Switches2.2 S3 Ð Output Mode Jumper 2.1 S1 Ð Shutdown Switch2.3 S3 Ð Input Mode Jumper 2.4 S4 Ð Input and Output Mode JumperHeadphone Output Jack Signal RoutingSignal Conditioning Mute Shutdown/Mode Headphone Jack Control SignalsMute/Mode Polarity Select JP8 Mute/Mode Select JP6Power Requirements Outputs Inputs and OutputsInputs 1 TPA0242 EVM Connected for BTL Output Using The TPA0242 EVM Stand-Alone±2. Typical TPA0242 EVM Jumper Settings for BTL Stand-Alone ±10. TPA0242 EVM Connected for Stereo Single-Ended Output 2 TPA0242 EVM Connected for Single-Ended Output±4. TPA0242 EVM Parts List TPA0242 Audio Power Amplifier Evaluation Module Parts List
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