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1.3
TPA6205A1DRB EVM Specifications
2
Operation
2.1
Precautions
Operation
VALUE
UNIT
V
DD
Supply voltage range
2.5 to 5.5
V
Power supply current rating required
450
mA
P
O
Continuous output power, PO: 8
Ω
BTL, V
DD
= 5 V
1.25
W
V
I
Audio input voltage
0 V to V
DD
, max
Z
L
Minimum load impedance
8
Ω
Follow the steps in this chapter to prepare the TPA6205A1DRB audio amplifier EVM for use. Using the
TPA6205A1DRB EVM 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 it can be wired directly into existing circuits or equipment.
The platform switch and jumper settings shown in
are typical for the TPA6205A1DRB EVM. They
cause the TPA6205A1DRB amplifier IC on the EVM to shut down when a plug is inserted into platform
headphone jack J10.
Table 1. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA6205A1DRB EVM
EVM
JP6
JP7
JP8
S2
S3
TPA6205A1DRB
Mute
X
(1)
Lo
See
(2)
X
(1)
(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.
CAUTION
Power Supply Input Polarity and Maximum Voltage
Always ensure that the polarity and voltage of the external power connected to
V
CC
power input connector J1, J2, and/or V
DD
power input connector J6 are
correct. Overvoltage or reverse-polarity power applied to these terminals can
open onboard soldered-in fuses and cause other damage to the platform,
installed evaluation modules, and/or the power source.
CAUTION
Inserting or Removing EVM Boards
Do not insert or remove EVM boards with power applied–damage to the EVM
board, the platform, or both may result.
TPA6205A1DRB Audio Power Amplifier EVM
4
SLOU182 – MAY 2006