3W Mono Class D
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The PAM8304 is a mono, filter-less, Class-D amplifier with high SNR (signal-to-noise ratio) and differential input that helps eliminate noise. The PAM8304 supports 2.8V to 6V operation, which makes it ideal for up to 4-cell alkaline battery applications. The PAM8304 is capable of driving speaker loads as low as 3Ω with a 5V supply, maximizing the output power.
The device’s over 90% efficiency and small PCB area make the PAM8304 Class-D amplifier ideal for portable applications. The output uses a filter-less architecture, minimizing the number of external components in the PCB area whilst providing a high-performance, simple, and lower cost system.
The PAM8304 features short-circuit protection, thermal shutdown, and undervoltage lockout.
The PAM8304 is available in the U-DFN3030-8 (Type E) and MSOP-8 packages.
Compliance (Only Automotive Supports PPAP) |
Standard |
|---|---|
AEC Qualified |
No |
Input Type |
Analog In |
Category |
Speaker Amplifier |
Minimum VDD (V) |
2.8 |
Maximum VDD (V) |
6 V |
Mono or Stereo |
Mono |
Architecture |
Class D |
IQ (mA) |
5 mA |
Minimum Load (Ω) |
4 |
Control Interface |
Hardware |
Power/CH (W) @ THD=10% |
3 |
Power/CH (W) @ THD=1% |
2.4 |
Headphone Out |
No |
Efficiency (%) |
93 % |
SNR |
87 dB |
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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-2770 | 2025-10-30 | 2025-10-30 | Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products |
| PCN-2512 | 2021-04-16 | 2021-07-16 | Qualified Additional Assembly & Test (A/T) Site |