Texas Instruments AUDIO POWER AMPLIFIER TPA2028D1YZFEVM User Manual
Page 3
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Operation
5.
Powering the EVM:
•
The EVM can be powered via USB connection or by external power supply:
(a) Via USB power: Install shunt for USBPWR if USB power is used.
(b) External power supply: connect an external regulated power supply adjusted for 2.5 V–5.5 V to the
VDD and GND banana jacks, taking care to observe marked polarity. Make sure USBPWR is
removed in this case.
Note:
(a) USB interface may not be able to provide enough current. For best audio performance, use
external power supply.
(b) Make sure only one power source is used. Connecting two power sources will cause damage
to the device and the supply.
6. Connect audio source to RCA jacks IN.
7. Connect speakers (8
Ω
to 32
Ω
) to the output banana jacks OUTP and OUTM.
8. Plug in USB.
9. Turn on the power supply.
10. If this is the first time a TPA2028D1YZFEVM is plugged in after installing the software, follow the
Windows dialog (
), questions, and selections:
(a) Select "Install from a list or specific location (Advanced)", then click next.
(1)
(b) Browse to the folder where the TPA2028D1 interface is installed then click ok.
(c) Windows will automatically install the driver.
Figure 2. Found New Hardware Wizard Advisory Screen
NOTE:
It is not necessary to repeat steps 10. a. to c., once the driver is installed.
(1)
Computer screen images showing Windows XP interface are courtesy of Microsoft Corporation
3
SLOU283 – February 2010
TPA2028D1YZFEVM
Copyright © 2010, Texas Instruments Incorporated