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Quick Start List for Stand-Alone
2-4
Operation
2.3 Quick Start List for Stand-Alone
Follow these steps to use the TPA6110A2 MSOP EVM stand-alone or when
connecting it to existing circuits or equipment. Connections to the TPA6110A2
MSOP module header pins can be made via individual sockets,
wire-wrapping, or soldering to the pins, either on the top or the bottom of the
module circuit board. Numbered callouts for selected steps are shown in
Figure 2–2 and details appear in Chapter 3.
Figure 2–2.
Quick Start Module Map
6
2
4
4
5
6
GND
Vo2
C3
IN2
GND
VDD
GND
IN1
GND
U1
R1
R2
C2 R3
S1
Shutdown
C5
Vo1
GND
C1
TEXAS
INSTRUMENTS
SLOP338
TPA6110A2 MSOP EVM
C4
R4
R5
†
Due to the very small size of the MSOP IC package, the standard part number TPA6110A2 is
replaced with the code TIAIZ.
- Power supply
1) Ensure that all external power sources are set to off
.
2) Connect an external regulated power supply set to 5 V to the module V
DD
and GND pins, taking care to observe marked polarity.
- Inputs and outputs
3) Ensure that the signal source level is set to minimum.
4) Connect the audio source to the module IN1, IN2, and GND pins, taking
care to observe marked polarity.
5) Connect the shutdown (S1) pin to V
DD
through a normally open switch.
6) Connect 32-Ω headphones to the module V
O1
, and V
O2
pins through 33
µF to 1000 µF output-coupling capacitors (see Figure 2–3) and return to
the GND pin, or
7) For line output, connections to the V
O1
and V
O2
pins must be made
through 33 µF to 1000 µF output-coupling capacitors and returned to
GND.
- Power-up
8) Verify correct voltage and input polarity and set the external power supply
to
ON.
The EVM should begin operation.
9) Adjust the signal source level as needed.