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PAM8403 is an Amplifier Board that can be powered using simple 5V input and could drive two 3W + 3W stereo speakers. It is an excellent choice for, who wants a Class-D stereo audio amplifier in a small board space. This Amplifier allows the user to achieve high-quality audio reproduction from a stereo input. Additionally, it has a special feature that is, it can drive speakers directly from its output.
This module of PAM series is different from basic PAM8403 Amplifier board as it gives us more control over the output generated by IC itself. By control we mean to say that this amplifier module board comes with a knob which help in controlling the output generated.
| Pin Name | Description |
| L | Audio Jack (TRS-Tip) Left Channel Input |
| Gnd | Audio Jack (TRS-Sleeve) Ground Channel Input |
| R | Audio Jack (TRS-Ring) Right Channel Input |
| 5v(+) | 5v DC Power VDD |
| 5v(-) | 5v DC Power GND |
| L(+) | Left Channel Positive Output |
| L(-) | Left Channel Negative Output |
| R(+) | Right Channel Positive Output |
| R(-) | Right Channel Negative Output |
Feature & Technical Specification:
- Operating Voltage: Wide power supply ranges from 2.5V to 5.5V DC
- Comes with a knob which can control the loudness of the sound.
- Dual-channel stereo with high output power (3W+3W Output at 10% THD with a 4Ω Load @5v DC)
- Max Gain 24 dB.
- Filterless architecture
- Low Quiescent Current and Low EMI
- Operating Temperature: -40 to +85°C
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