The TPA0242 Audio Power Amplifier Evaluation Module
3.2 The TPA0242 Audio Power Amplifier Evaluation Module
The TPA0242 audio power amplifier evaluation module is powered by a TPA0242 stereo power amplifier capable of delivering greater than 2 W of continuous power per channel into 3-Ω loads. The amplifier IC can be operated in either the BTL or single-ended output mode. The evaluation module includes control inputs for shutdown, selection between two sets of stereo inputs, and switching between single-ended and bridge-tied load output modes.
The module can be used with the TI plug-n-play audio amplifier evaluation platform (Figure 3±1) or wired directly into circuits or equipment. The module has single in-line header connector pins mounted to the under side of the board. These pins allow the module to be plugged into the TI platform, which automatically makes all the signal input and output, power, and control connections to the module.
The module connection pins are on 0.1-inch centers to allow easy use with standard perf board and plug board-based prototyping systems. Or, the EVM can be wired directly into existing circuits and equipment when used stand- alone.
The module appears in Figure 3±2 and its schematic is shown in Figure 3±3.
Figure 3±2. TPA0242 EVM
R HP | VDD | | | | GND | |
| + | | | | | |
GND | | | | C10 | | |
| | | | | |
| | | | | | |
R LINE± | C4 C3 | C5 | C6 | R3 | S2 R4 | S3 | S4 |
R IN+ |
SHUTDOWN | | | | | | | |
S1 | | | | | | | |
ROUT+
GND
ROUT± 
HP/LINE
SE/BTL
PCBEEP
TEXAS INSTRUMENTS
L LINE±
GND
L HP
TPA00242 EVM Board
| | | SHUTDOWN |
C7 | C8 | C9 | | LOUT± |
| | | |
| + | C13 | SLOP275 | GND |
VDD | | GND | LOUT+ |
| |
