PAM8403 Digital Amplifier Board 2*3W Class D 2.5V To 5V Power Audio Speaker Sound Amplifier Board


.Advanced Micro Devices, volume: 1.85 * 2.11cm

2.Excellent noise suppression in the case is not connected to the input audio, the ear close to the speaker can not hear any noise
3.Two-channel stereo, 5V power supply can output 3W +3 W power, can directly drive 4 8 small speaker output power, full of energy, good sound quality.
4.Unique without LC filter Class D digital power board, and can be used directly to the computer’s USB powered.
5.Dual-panel wiring, properly solve the crosstalk between the ground potential balance and channel wiring
6.Ultra-miniature design, can easily be placed in the internal space for a variety of digital products, ultra high zoom efficiency.
7.All using the machine for the entire board soldering, hand soldering iron welding quality comparable!
8.Rated working voltage 2.5-5V, limit operating voltage 5.5V.
Note: The left and right channel output of the “negative” can not, and then together, otherwise it will burn the IC and energized speaker (load) connected before

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The PAM8403 5V Two-channel Stereo is a 3W+3W, class-D audio amplifier. Allowing it to achieve high-quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins. It can extend the battery life, which makes it well-suited for portable applications.

Operating Voltages : 2.5V – 5.5V.PAM 8403 audio Amplifier board
Current capacity : 8 mA PAM 8403 audio Amplifier board
Efficiency : 87 % PAM 8403 audio Amplifier board
Amplifier IC: PAM 8403 audio Amplifier board
Load : Can direct drive 4 or 8 ohm small speakers PAM 8403 audio Amplifier board
Dimensions : 21 x 18 x 3 mm.
Weight : 5 gm.
Max Gain : 24 dB.
Signal to Noise ratio : 80 dB.
Power supply Rejection ratio : -58 dB.
Dual channel stereo, high output power (3 w + 3 w power @ 5V and 4 ohms load).
Good sound quality.
Double panel wiring solves crosstalk.
Super mini design allows it to be easily placed in a variety of digital products.
3W Output at 10% THD with a 4ΩLoad and 5V Power Supply.
Filterless, Low Quiescent Current and Low EMI.
Superior Low Noise.
Short Circuit Protection.
Thermal Shutdown

Additional information

Weight 5 g
Dimensions 2 × 2 × 1 cm


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