Texas Instruments TPA2028D1YZFEVM manual Shutdown Control, Connect I2C Controls to JP3

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Operation

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Save Script can record the current register values. Select Save Script >> Click the folder icon to browse to the place where you want to save the script >> name the file in text format, then select OK to save.

Load Script can load the previously saved script to program the entire register file. Select Load Script >> Click the folder icon to browse to the place where the script is located >> Select the file then click OK >> Click Load.

I2C interface can program individual register value of TPA2028D1. Select I2C Interface >> I2C address is xB0, which is the address of TPA2028D1. Device address is from 1 to 7, which is the register address of TPA2028D1.

2.1.4Shutdown Control

The TPA2028D1 EVM provides independent hardware shutdown controls for the Class-D power amplifier and the USB controller.

1.Press and hold push button S1 to shutdown TPA2028D1. Release S1 to activate TPA2028D1.

2.Press and hold push button S2 to shutdown the USB controller. Release S2 to activate the USB controller.

2.2Quick Start List When Connected to Existing Circuits With I 2 C Controls

The TPA2028D1YZFEVM can be easily connected to existing circuits with I2C controls. Connections to the EVM module can be made using banana plugs for the power supply. The inputs accept standard RCA plugs and the outputs accept banana connectors.

2.2.1Evaluation Module Preparations

1.Ensure that all external power sources are set to OFF.

2.Install shunts in jumpers JP4.

3.Remove shunts between J1 and J3 and connect I2C controls to J1 as shown in Figure 5.

Figure 5. Connect I2C Controls to JP3

4.Install shunts in jumpers JP2 when single-ended audio input is used; this ties IN– to ground.

5.Remove USBPWR.

6.Connect an external regulated power supply adjusted for 2.5 V–5.5 V to the VDD and GND banana jacks, taking care to observe marked polarity.

7.Connect audio source to IN.

8.Connect speakers (8 to 32 ) to the output banana jacks OUTP and OUTM.

9.Turn on power supply.

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TPA2028D1YZFEVM

SLOU283 –February 2010

 

 

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Contents TPA2028D1YZFEVM IntroductionSoftware Installation Sequence OperationEvaluation Module Preparations Found New Hardware Wizard Advisory Screen Using the Software Starting the SoftwareSoftware Interface Shutdown Control Connect I2C Controls to JP3TPA2028D1YZFEVM Schematic TPA2028D1YZFEVM YZF-Device Schematic,TPA2028D1YZFEVM Schematic TPA2028D1YZFEVM PCB Layers TPA2028DYZF1EVM YZF-Device Top LayerTPA2028D1YZFEVM Parts List Bill of Materials for TPA2028D1YZFEVMShunts Evaluation BOARD/KIT Important Notice FCC Warning