PAM8403 5V Two-channel Stereo Mini Class-D 3W+3W Audio Amplifier
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020
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PAM8403 5V Two-channel Stereo Mini Class-D 3W+3W Audio Amplifier

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  • Product SKU: KG089
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Specification

Description

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.

The Mini Class-D 3W+3W Audio Amplifier can extend the battery life, which makes it well-suited for portable applications. Excellent noise suppression, no audio input in the case of ear close to the speaker can not hear any noise. The unique Class D digital powerless board with an LC filter can be powered directly from the computer's USB.
  • Can be easily placed in a variety of digital products within a small space, high-efficiency amplification.
  • It is double-panel wiring, properly solving the wiring caused by the potential balance and crosstalk between channels.
  • Dual-channel stereo, 5V power supply can output 3W +3 W power, can be directly driven 4Ω, 8Ω small speakers, the output power, enough energy, good sound quality.
  • Can use the computer USB port 5v power supply or using a mobile phone charger USB port 5v power supply battery power can also be used high efficiency

Technical Details

  • Operating Voltage (VDC) : 2.5 ~ 5.5
  • Max Gain : 24 dB
  • Current Handling Capacity (A) : 0.08
  • Efficiency : 87 %
  • Amplifier IC : PAM 8403
  • Load : Can direct drive 4 or 8 ohm small speakers
  • S/N Ratio (dB) : 80
  • Power supply Rejection ratio : -58 dB

Physical Attributes

  • Dimensions in mm (LxWxH) : 21 x 18 x 3
  • Weight (gm) : 2

Application

  • Bluetooth Stereo Audio hands-free/headsets
  • In robots that speak or generate sounds to indicate activities
  • Portable Speakers
  • LCD Monitors / TV Projectors
  • Arduino or Raspberry Pi Game Machines
  • Speaker Phones

Additional Details

  • 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

Product Video

Documentation

Customer Reviews

Based on 16 reviews
94%
(15)
6%
(1)
0%
(0)
0%
(0)
0%
(0)
r
rajmani
Works very good

I bought these to make a portable bluetooth speaker. So far so good. Will definitely buy again from here

t
talim
these amps do a fine job and sized to fit in some really small ...

When you need a little extra noise in your projects, these amps do a fine job and sized to fit in some really small projects.

e
esrail khan
Audio amp

Pretty good, the sound quality it's nice, but it would be nice to add the pot or the holes for it

a
ashutosh @ deepak
Ordered for my C.H.I.P.

A perfect companion to the pocket C.H.I.P., allowed me to have a speaker and not need to use headphones.

a
abhishek yadav
BOOMTASTIC

This little amplifier module really packs a good punch. Decent sound quality for smaller diy boombox projects. I'd buy again.

L
Longtimer
Good and as described

Works as described, even works on a Li-ion battery. I am using it on a bluetooth system, so it could be louder. Drives my 3w speakers sufficently.

s
suraj
Five Stars

Works perfect for my project, easy to setup/install into my Retropi mini arcade.

d
devender singh
amplifier

small but good sound

g
gautam kumar
Amazing amplifiers

Finally I found the right size and functional. Recommended.

h
himanshu
Not bad at all

I was rather impressed with these little guys