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3.2 Plug-N-Play Platform Power Requirements and Connections
The TPA032D03 mono class-D audio power amplifier evaluation module is
designed to operate from a supply voltage between 9 V and 14 V. For best
performance, the module should be operated at 12 V.
The TI plug-n-play audio amplifier evaluation platform provides several
options for powering the TPA032D03 class-D EVM. Table 3–1 shows the
platform jumper and switch settings for each power source option (see the
User's Guide for the TI plug-n-play audio amplifier platform, TI Literature
Number SLOU011 for more information). The TPA032D03 class-D EVM
requires no setup for power source selection.
Table 3–1. Platform Jumper and Switch Settings for the TPA032D03 EVM Power Inputs
POWER TYPE (Note 2)
JP1
VCC (J1)
ON
AC/DC (J2)
OFF
Notes:
1) ON = Jumper installed, OFF = Jumper NOT Installed, X = Don't care
2) Install a voltage regulator EVM (SLVP097) in platform socket U6 for VDD power to EVM control inputs.
3) Set to ON when Tone Control Board SLOP109 is installed in U1, otherwise set to OFF.
Although the TPA032D03 amplifier IC draws approximately 1.6 A from the
power supply during continuous full power output, peak current draw can be
as high as 2.3 A. Any power supply connected to the platform should be
capable of providing 2.3 A (peak) to avoid clipping of the output signal during
voltage peaks. Current consumption driving speakers at normal listening
levels is typically 0.1 A or less.
A V
V
DD
voltage regulator (SLVP097 or equiv.) can be installed in platform socket U6
to provide V
The platform is equipped with overvoltage and reverse-polarity supply voltage
input protection in the form of fused crowbar circuits.
Plug-N-Play Platform Power Requirements and Connections
JP2
JP3
JP4
JP5
OFF
OFF
ON
ON
ON
OFF
ON
ON
supply of 5 V is required for normal operation of the TPA032D03 EVM.
DD
can either be applied to the platform V
from the platform V
DD
V
voltage applied to platform screw terminals J6 MUST NOT exceed
DD
the absolute maximum rating for the TPA032D03 amplifier IC installed on
the evaluation module (5.5 V) or damage to the IC may result. In no case
should V
voltage of the incorrect polarity or in excess of 6.0 V be applied
DD
to screw terminals J6 of the platform, or the power protection circuit on the
V
line will trip.
DD
V
voltage applied to the platform MUST NOT exceed the maximum
CC
voltage input specified for the voltage regulator module installed in socket
U6 (12 V for the SLVP097), or damage to the voltage regulator module
may result. In no case should V
15 V, or the overvoltage protection circuit on the V
JP6
JP7
JP8
S1
Mute
X
Lo
ON
Mute
X
Lo
ON
power input terminals (J6) or a
DD
supply.
CC
voltage applied to the platform exceed
CC
bus will trip.
CC
Details
S2 (Note 3)
S3
OFF
U5
OFF
U5
3-3
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