Texas Instruments TPA0122, Руководство пользователя, Страница: 11 / 34

2-1 Quick Start
Quick Start
The steps in this chapter can be followed to quickly prepare the TPA0122 audio
amplifier EVM for use. Using the TPA0122 with the TI plug-n-play audio
amplifier evaluation platform is a quick and easy way to connect power, signal
and control inputs, and signal outputs to the EVM using standard connectors.
However, the audio amplifier evaluation module can be used stand-alone by
making connections directly to the module pins, and can be wired directly into
existing circuits or equipment.
The platform switch and jumper settings shown in Table 2–1 are typical for the
TPA0122 EVM and will cause the TPA0122 to switch to single-ended output
mode when a plug is inserted into platform headphone jack J10.
Table 2–1. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA0122
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.
Table 2–2. Typical TPA0122 EVM Jumper Settings
EVM S2 S3 S4
TPA0122 OFF OFF OFF
Note: ON = Shunt installed
OFF = Open
Topic Page
2.1 Precautions 2–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Quick Start List for Platform 2–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Quick Start List for Stand-Alone 2–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2