Shunt
GND
SCL
SDA
GND
External I C
Source
2
Operation
7. Select the correct mode of output under
Mode
.
8. Adjust the Volume or Gain of the TPA6130A2 by dragging the
Gain
bar or clicking on the
Gain
display
and selecting from the drop-down menu.
9.
I2C Status
box reports the status of I
2
C communications. An error or failure has occurred if it turns red.
10.
Thermal
box reports the status of thermal failure. A thermal fault has occurred if it turns red.
2.2
Quick Start List When Connected to Existing Circuits With I
2
C Controls
The TPA6130A2EVM can be easily connected to existing circuits with I
2
C controls. Connections to the
EVM module can be made using banana plugs for the power supply. The inputs accept standard RCA
plugs. The output connection accepts standard 3.5-mm headphone plugs.
2.2.1
Evaluation Module Preparations
1. Install shunts in jumpers JP4, JP5, and JP6. Remove shunts in JP2 and JP3 and connect I
2
C controls
to JP3 as shown in
Figure 6. Connect I
2
C Controls to JP3
2. Power TPA6130A2 from external power sources; place a shunt in JP1 as shown in
.
Figure 7. Shunts Across JP1 Powered With an External Power Supply
Ensure that all external power sources are set to OFF.
Connect an external regulated power supply adjusted from 2.5 V–6 V to the module VDD (
J8
) and
GND (
J7
) banana jacks, taking care to observe marked polarity.
3. Connect audio source to J4 and J3.
4. Connect headphones to J2.
5. Set external power sources to ON. LED should illuminate.
6
TPA6130A2EVM
SLOU185A – October 2006 – Revised September 2014
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