Texas Instruments MIXED SIGNAL PRODUCTS TPA0103 - Manual (Page 13)

Quick Start List for Platform
2-3 Quick Start
2.2 Quick Start List for Platform
Follow these steps when using the TPA0103 EVM with the TI Plug-N-Play
Audio Amplifier Evaluation Platform (see the platform user’s guide, SLOU011,
for additional details). Numbered callouts for selected steps are shown in
Figure 2–1 and details appear in Chapter 3.
- Platform and TPA0103 EVM 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 TPA0103 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).
Setting the platform and the EVM for Center or L/R, as indicated in the tables
below, will cause the EVM to operate in the center channel mode BTL (speak-
er) when no plug is present in headphone jack J10 and in the L/R single-ended
mode (headphone) when a plug is inserted into platform headphone jack J10.
4) Set the jumpers on the platform as indicated in Table 2–3.
Table 2–3. TI Plug-N-Play Platform Jumper and Switch Settings for the TPA0103
OUTPUT MODE JP6 JP7 JP8 S2 S3
Center or L/R 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.
5) Set the jumpers on the TPA0103 EVM as indicated in Table 2–4.
Table 2–4. TPA0103 EVM Jumper settings
OUTPUT MODE S1 S2 S3 S4 S5
Center or L/R ON ON OFF OFF OFF
Note: OFF = Open, ON = Closed
- Power supply
6) Select and connect the power supply:
a) Connect an external regulated power supply set to a voltage between
3 V and 5.5 V to platform V
DD
power input connector J6 taking care
to observe marked polarity, or
b) Install a voltage regulator EVM (SLVP097 or equiv.) in platform socket
U6. Install a 9-V battery in B1 or connect a 7 V – 12 V power source
to a platform V
CC
power input J1 or J2 and jumper the appropriate
power input (see platform user’s guide).
- Inputs and outputs
7) Ensure that signal source level adjustments and the EVM gain controls,
R13, R14, and R17, are set to minimum.
8) Connect the audio source to left and right RCA phono jacks J3 and J5 or
stereo miniature phone jack J4.
9) Connect a 4-
Ω
to 8-
Ω
speaker to the left and right BLACK speaker
connectors of J8. DO NOT USE RED CONNECTORS OF J8.
- Power-up
10) Verify correct voltage and input polarity and set the external power supply
to ON. If V
CC
and an onboard regulator EVM are used to provide V
DD
, set
platform power switch S1 to ON.
11) Adjust the signal source level and EVM gain levels (R13, R14, and R17)
as needed.