Texas Instruments TPA005D02, Руководство пользователя

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Quick Start List for Platform
2-3 Quick Start
2.2 Quick Start List for Platform
Follow these steps when using the TPA005D02 class D 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 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 TPA005D02 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
Lo.
5) Set jumper JP6 to select the Mute control input (causes the TPA005D02
to mute if a plug is inserted into platform headphone jack J10).
6) Set switch S3 to
U5. It is important that S3 always be in the U5 position
to avoid possible damage to the EVM and headphones when the
TPA005D02 class D EVM is installed in platform socket U2.
Table 2–2. Platform Jumper and Switch Settings for the TPA005D02
EVM JP6 JP7 JP8 S2 S3
P-N-P Platform Mute X Lo Note 2 U5
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 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. 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
8) Ensure that the audio signal source level is set to minimum.
9) Connect the audio source to left and right RCA phono jacks J3 and J5 or
stereo miniature phone jack J4.
10) Connect 4-
Ω
– 8-
Ω
speakers (use 4-
Ω
for best performance) to left and
right RCA jacks J7 and J9 or to stripped wire speaker connectors J8.
-
Power Up
11) 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.
Platform LED2 should light indicating the presence of V
DD
, and the evaluation
modules installed on the platform should begin operation.
12) Adjust the signal source level as needed.