Quick Start List for
2.3 Quick Start List for Stand-Alone
Follow these steps to use the TPA122 MSOP EVM
Figure 2±2. Quick Start Module Map
Shutdown | VDD | GND | ||
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| S1 | + |
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| R1 | C5 |
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IN1 | R2 |
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GND | C1 | R3 |
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| Vo1 | |
| C2 | U1² | GND | |
TEXAS |
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INSTRUMENTS |
| C4 | ||
| C3 | R5 | ||
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| R4 | GND | |
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IN2 | SLOP127 | Vo2 | ||
GND |
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TPA122 MSOP EVM | ||||
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²Due to the very small size of the MSOP IC package, the standard part number TPA122 is replaced with the code TIAAE
-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 VDD 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 pin to VDD through a Normally Open switch.
6)Connect
7)For line output, connections to the VO1 and VO2 pins must be made through 33 μF to 1000 μF
-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.
Quick Start |