D8227 is a dual-channel audio power amplifier integrated circuit, suitable for audio power amplification in portable recording devices. It features high output power, high voltage gain, low static current, and high ripple suppression ratio.
The D8227 is a dual‑channel audio power amplifier module with built‑in temperature protection, power‑filtering, and gain control. It operates from a 5 ~ 12 V supply and delivers up to 3 W per channel into low‑impedance loads.
The manual lists electrical parameters such as output power, voltage gain, input current, and noise voltage, and includes wiring diagrams, pin assignments, and safety precautions for proper installation and use. This manual is written in Chinese.
| Voltage Gain (Rf=120Ω) | 45 dB |
|---|---|
| Voltage Gain (Rf=0Ω) | 56.5 dB |
| Noise Voltage (Vno) | 0.3 mV rms |
| Quiescent Current (I CCQ) | 21 mA |
| Supply Voltage Range | 5 ~ 12 V |
| Peak Input Current | 2.5 A |
A gain of 45 dB is obtained with Rf = 120 Ω.
The device operates from 5 V to 12 V.
The peak input current is 2.5 A.