The TFA9896 is a high-efficiency Class-D audio amplifier with a sophisticated SpeakerBoost protection algorithm. It can deliver 2.1 W (RMS; THD = 1%) output power to an 8 Ω speaker at a battery voltage of 3.6 V. The internal boost converter raises the supply voltage to 6.1 V, providing ample headroom for major improvements in sound quality.
Boost Voltage: 6.1 V
Maximum RMS output power:
2.1 W into 8 Ω (THD < 1%; Vbat = 4 V)
3.2 W into 4 Ω (THD < 1%; Vbat = 4V; RL > 3.4 Ω)
Low Noise: 27 uV @ normal gain mode; 19 uV @ low gain mode
Ultra-low power idle mode 22 mW @ silent input (DSP bypassed)
Optimized battery consumption of 169 mW at Pout = 130 mW average
Total system efficiency > 83% (Pout = 1 W, RL = 8 Ω and Vbat = 4 V)
2 * TDM full duplex (4-lines)
Enhanced battery safeguard
Open WeChat, use "Scan" to follow.