Diodes Incorporated
U QFN4040 20

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PAM8019 (Not Recommended for new design)

NRND = Not Recommended for New Design

3W Stereo Class D with DC Volume Control, UVP, AGC Function and Headphone Driver

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The PAM8019 is a Stereo 3W Class D audio-power amplifier for driving bridged-tied speakers and includes a Stereo Class AB amplifier for driving headphones. The advanced 64 step DC volume control minimizes external components allowing simple and accurate volume control over the gain range of +20dB (Volume=0V) to -60dB (Volume=5V).

Integrated non-clip power limit technology suppresses output automatically with programmable power limit, improving the sound quality and helping to protect the speakers. Programmable under voltage protection (UVP) can be used to shut down the PAM8019 at a pre-determined voltage level helping to eliminate speaker pop by shutting down before the power supply collapses.


  • 3W Stereo Class D Amplifier with Class AB Headphone Amplifier
  • Filter free and low EMI architecture
  • Operating voltage: 2.8V to 5.5V
  • Low quiescent current of 7mA at a VDD of 5V
  • 64 Step DC Volume Control with Hysteresis from -60dB to +20dB
  • Output Power
    • Class D Amplifier THD+N=1%
      VDD=5V, Rl=4Ω; Po=2.4W / Rl=8Ω; Po=1.4W
    • Class D Amplifier THD+N=10%
      VDD=5V, Rl=4Ω; Po=3.0W / Rl=8Ω; Po=1.7W
    • Class AB Headphone Amplifier
      VDD=5V, Rl=32Ω; Po=60mW
  • Speaker or Headphone select
  • Non Clip Power Limit (NCPL) Function
  • OVP and programmable UVP protection
  • Thermal and Over-Current Protection with Auto-Recovery


  • LCD Monitors and TVs
  • Projectors/All-In-One Computers
  • Portable/Active Speakers
  • Portable DVD Players/Game Machines

Product Specifications

Product Parameters

Anti-Sat No
Compliance (Only Automotive supports PPAP) No
Class-D or AB D
Compliance (Only Automotive supports PPAP) Standard
Efficiency (%) 90
Gain Max 20
Gain Min -60
Headphone Out Yes
IQ (mA) 4
Maximum VDD (V) 5.5
Minimum VDD 2.8
Minimum VDD (V) 2.8
Mono or Stereo Stereo
Power Limit Yes
Power/CH (W) @ THD=1% 2.4
Power/CH (W) @ THD=10% 3
AEC Qualified No
SE Yes
SNR 83
Special Features N/A
Volume/ Gain 64Step DC

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