مخطط الأطراف
مخطط أطراف مضخم من الفئة D من نوع PAM8403
الأطراف
- Audio in: L, G (audio ground), R
- Power: +5V (2.5–5.5V), GND
- Speakers: L+ / L− and R+ / R− — 4–8Ω, 3W per channel at 5V/4Ω
- Outputs are bridged (BTL): NEVER join speaker minuses together or to ground
- No output capacitors needed — that is the class-D point
المواصفات
| Amplifier IC | PAM8403 (filterless class-D, stereo) |
|---|---|
| جهد التغذية | 2.5–5.5 V |
| Output power | 3 W per channel into 4 Ω at 5 V (10% THD) |
| Speaker load | 4–8 Ω per channel |
| نوع الخرج | Bridge-tied load (BTL) — each speaker floats, never grounded |
| Efficiency | Up to ≈ 90% |
| Channels | 2 (stereo) |
| IC package | SOP-16 |
