Texas Instruments TPA3125D2 EVM, User Manual, Page: 4 / 11

2.2.3 Applying Power to the EVM
Quick Start for Stand-alone Operation
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Table 2. Gain Jumper Settings
(1)
GAIN1 GAIN0 Amplifier Gain (dB)
ON ON 20
ON OFF 26
OFF ON 32
OFF OFF 36
(1)
OFF denotes jumper is REMOVED; ON denotes jumper
INSTALLED.
1. Verify correct voltage and input polarity for the external power supplies. Turn ON. The EVM starts
operation.
2. Adjust the input signal.
3. Adjust the control inputs to the desired settings as described in the
Control Inputs section.
4. Adjust the amplifier gain by installing or removing the gain jumpers, GAIN0 and GAIN1 to yield the
gain values described in Table 2 .
TPA3125D2 EVM 4 SLOU250 – January 2009
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