Texas Instruments TPA6030A4 manual 2.Module Preparation, Evaluation Module Preparations, Power Up

Quick Start List for Platform

-Evaluation Module Preparations

Figure 2–2. Module Preparation

13	12	10
		11

10)The SE jumper, J1, is used to select between the two output modes, SE and BTL. To allow the module SE/BTL control input to force the amplifier IC into a BTL output mode, set output mode jumper J1 to OFF. To keep the module amplifier IC in the single-ended output mode regardless of the control input state, set jumper J1 to ON.

11)The HP jumper, J2, is used to select between the two input modes, HP and LINE. To keep the amplifier IC in LINE input mode, set J2 to OFF. To keep the amplifier IC in the HP input mode, set jumper J2 to ON.

-Power Up

Platform LED1 should light indicating the presence of VCC, and the evaluation modules installed on the platform should begin operation.

-Volume Control

12)Potentiometer R1 (VOLUME) sets the BTL volume, which can range from –40 dB to +36 dB using 2.53 dB steps. Turning the potentiometer clockwise increases the gain; turning counterclockwise decreases the gain. To mute the volume (–80 dB), turn the poteniometer, R1, as far as it will go in a counterclockwise direction. Refer to Table 3–2 in the Reference chapter for a list of the volume levels.

13)The SE volume may be set independently using potentiometers R2 (SEDIFF) and R3 (SEMAX). SEDIFF set the difference between the BTL volume and the SE volume, while SEMAX sets the maximum volume in SE mode.

14)Turning potentiometer R2 (SEDIFF) clockwise decreases the difference between SE and BTL volumes; counterclockwise increases the difference.

15)Turning potentiometer R3 (SEMAX) clockwise increases the maximum SE volume; counterclockwise decreases the maximum SE volume.

For more information on volume control operation, see the TPA6030A4 data sheet.

Quick Start 2-5