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2.1.2.3
Control Outputs
2.1.3
Power Up
Operation
jumper in the J14 location. Logic levels are TTL compatible.
Table 1. Gain Settings
GAIN1 (J13)
(1)
GAIN0 (J12)
(1)
Amplifier Gain (dB)
ON
ON
20
ON
OFF
26
OFF
ON
32
OFF
OFF
36
(1)
OFF = Jumper removed; ON = Jumper installed
1. FAULT: This pin is a TTL compatible output for reporting a short-circuit fault on the output. If the
outputs are shorted to GND, V
CC
, or to each other, this terminal goes high and remains high until one
of the following operations is performed: power is cycled, SHUTDOWN is cycled, or MUTE is cycled. If
jumper J11 is installed, the MUTE terminal is connected directly to the FAULT terminal and a
short-circuit fault is automatically cleared when it occurs.
1. Verify correct voltage and input polarity and turn the external power supplies on. The EVM should
begin operation.
2. Adjust the input signal.
3. Adjust the control inputs to the desired settings.
4. If no sound is audible, check the position of the MSTR/SLV (J14) jumper. It should be removed if
evaluating a single EVM.
5. Adjust the amplifier gain by installing/removing the gain jumpers, J12 and J13.
TPA3100D2 Rev.A Audio Power Amplifier Evaluation Module With LC Filter
4
SLOU179A – December 2005 – Revised May 2007
