Texas Instruments TPA2000D4, Руководство пользователя, Страница: 10 / 20

2-1 Operation
Operation
The steps in this chapter can be followed to quickly prepare the TPA2000D4
filterless class-D audio amplifier EVM for use. Using the TPA2000D4 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
TPA2000D4 EVM and will cause the TPA2000D4 to shut down 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
TPA2000D4
EVM JP4 JP5 JP6 JP7 JP8 S2 S3
P-N-P Platform X ON Mute X Lo Note 2 U5
Notes: 1) ON = Jumper installed, OFF = Jumper NOT Installed, 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 TPA2000D4 EVM Jumper Settings
EVM GAIN0 GAIN1
TPA2000D4 ON ON
Note: ON = Jumper installed, OFF = Jumper NOT Installed, X = Don’t care
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Reference 2–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2