Datasheet

Description
1-3
Introduction
1.2 Description
The TPA0252 stereo 2-W audio amplifier evaluation platform is a complete,
2 W per channel stereo audio power amplifier. It consists of the TI TPA0252
stereo 2-W audio power amplifier IC along with a small number of other parts
mounted on a circuit board that measures approximately 2 1/4 inches by 1 1/2
inches (see Figure 1–1).
Figure 1–1. The TI TPA0252 Audio Amplifier Evaluation Module
GND
ROUT+
ROUT–
SE/BTL
S1
SHUTDOWN
GND
LOUT–
LOUT+
J1 UP
C3
VDD GND
L IN+
GND
L LINE–
L HP
VDD
GND
R HP
R LINE–
GND
R IN+
C12
+
TPA0252 EVM
SLOP333
U1
TEXAS
INSTRUMENTS
R4
R1
D1
SHUTDOWN
C6
S2
S3
DOWN
UP
R2
C13
C8
C7
C9
C10
C11
R5
TP1
HP/LINE
HP–SE
J5
D2
VAUX
TP2
C2
C5
C4
C1
R3
J2 DOWN
J3 CLK
J4
PCBEEP
Single in-line header pins extend from the underside of the module circuit
board to allow the EVM to be plugged into the TI plug-n-play audio amplifier
evaluation platform, or to be wired directly into existing circuits and equipment
when used stand-alone.
The platform has room for a single TPA0252 evaluation module and is a
convenient vehicle for demonstrating TI’s audio power amplifier and related
evaluation modules. The EVMs simply plug into the platform, which
automatically provides power to the modules, interconnects them correctly,
and connects them to a versatile array of standard audio input and output jacks
and connectors. The easy-to-use configuration controls allow the platform and
EVMs to quickly model many possible end-equipment configurations.
There is nothing to build, nothing to solder, and nothing but the speakers
included with the platform to hook up.
1.3 TPA0252 EVM Specifications
Supply voltage range, V
DD
4.5 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current, I
DD
2 A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output power per channel, P
O
: 3-Ω BTL, V
DD
= 5 V 2 W. . . . . . . . . . . . . . . . . . . . . .
Audio input voltage, V
I
: HP input 5 Vpp max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line input 5 Vpp max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PC beep input 5 Vpp max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum load impedance, R
L
3 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .