The TFA9894 is a highly power-efficient DSP embedded Class-D audio amplifier solution associated with speaker protection and boost algorithm which features audio enhancement and speaker protection algorithm embedded on DSP on chip.
5.6 W into 8 Ω, 6.2 W into 4 Ω (THD < 1%; Vbat = 4 V)
Very low noise: < 14 μV
10 V Adaptive DC-DC Boost
Maximizes the output power of the Class-D audio amplifier while preventing large battery supply spikes and limiting quiescent power consumption
High system efficiency: 91% peak efficiency for 600 mW sine wave
Low battery consumption: < 125 mA (Po = 380 mW, average music power)
Embedded SpeakerBoost algorithm
Speaker damage protection for thermal mechanical damage overload and enhanced loudness on speaker
On host or DSP integrated only on TFA9894 (V2.0)
MCU platform digital IO support
3.3 V digital IO support
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