Diodes Incorporated
SO 16

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PAM8407 (Not Recommended for new design)

NRND = Not Recommended for New Design

3W Stereo Differential Input Class D with Up/Down Volume Control

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The PAM8407 is a filter-less Class-D amplifier with high SNR and differential input that helps eliminate noise. Advanced 32-step Up/Down volume control minimizes external components and allows speaker volume control.
The PAM8407 supports 2.5V to 6V operation make it idea for up to 4 cells alkaline battery applications.
Features like greater than 87% efficiency and small PCB area make the PAM8407 Class-D amplifier ideal for portable applications. The output uses a filter-less architecture minimizing the number of external components and PCB area whilst providing a high performance, simple and lower cost system.
The PAM8407 built in auto recovery SCP (short circuit protection) and thermal shutdown.
The PAM8407 is available in SO-16 package.


  • 3W Output at 10% THD with a 4Ω load and 5V Supply
  • 2.4W Output at 1% THD with a 4Ω Load and 5V Supply
  • 2.5V to 6.0V VDD Operating
  • Fully Differential Input
  • Filterless, Low Quiescent Current and Low EMI
  • Low THD+N
  • 32-stepUp/Down Volume Control from -80dB to 24dB
  • Superior Low Noise: 60uV
  • Minimize Pop/Clip Noise
  • Auto Recovery Short Circuit Protection
  • Thermal Shutdown
  • Pb-Free SO-16 Package


  • PC Speaker
  • Wireless Speaker
  • Home Sound Systems
  • Active Speakers
  • Docking stations

Product Specifications

Product Parameters

Anti-Sat No
Compliance (Only Automotive supports PPAP) No
Class-D or AB D
Efficiency (%) 87
Gain Max 24
Gain Min -80
Headphone Out No
IQ (mA) 8
Maximum VDD (V) 6
Minimum VDD 2.5
Minimum VDD (V) 2.5
Mono or Stereo Stereo
Power Limit No
Power/CH (W) @ THD=1% 2.4
Power/CH (W) @ THD=10% 3
AEC Qualified No
SNR 95
Special Features N/A
Volume/ Gain Up/Down

Related Content


Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site