Texas Instruments TPA0252, User Manual

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Quick Start List for Platform
2-3 Operation
2.2 Quick Start List for Platform
Use the following steps when using the TPA0252 EVM with the TI plug-n-play
audio amplifier evaluation platform (see the platform user’s guide, literature
number SLOU011, for additional details). Typical platform switch and jumper
settings are shown in Table 2–1 and typical EVM settings are shown in
Table 2–2. Numbered callouts for selected steps are shown in Figure 2–1 and
Figure 2–2.
Platform preparations
1) Ensure that all external power sources are set to OFF and that the platform
power switch S1 is set to OFF.
2) Install a TPA0252 module in platform socket U2, taking care to align the
module pins correctly.
3) Use switch S2 to select or bypass the signal conditioning EVM (U1).
4) Set control signal polarity jumper JP8 to Hi.
5) Set jumper JP6 to select the mode control input. This causes the TPA0252
to switch to the single-ended output mode if a plug is inserted into platform
headphone jack (J10).
6) If the headphone jack (J10) output will be used, set headphone source
switch S3 to U2–U4.
Table 2–1. Platform Jumper and Switch Settings for the TPA0252
EVM JP6 JP7 JP8 S2 S3
P-N-P Platform Mode X Hi Note 2 U2–U4
Notes: 1) X = Don’t care
2) Set S2 to ON when signal conditioning board is installed in U1; set S2
to OFF when no signal conditioning board is installed.
Power supply
7) Select and connect the power supply (ensure power supply is set to OFF):
a) Connect an external regulated power supply, set to 5 V, to platform
VDD power input connector J6 taking care to observe the marked
polarity,
or
b) Install a voltage regulator EVM (SLVP097 or equiv.) in platform socket
U6. Connect a 7-V – 12-V power source to the platform V
CC
power
input J1 or J2 and jumper the appropriate power input (see the
platform user’s guide).
Inputs and outputs
8) Ensure that the audio signal source level is set to minimum.
9) Connect the audio source to the left and right RCA phono jacks J3 and J5
or the stereo miniature phone jack J4.
10) Connect speakers to the left and right RCA jacks J7 and J9 or to the
stripped wire speaker connectors J8.