2 headphone amplifier efficiency, Cs42l51 – Cirrus Logic CS42L51 User Manual
Page 77
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CS42L51
7.2
Headphone Amplifier Efficiency
The architecture of the headphone amplifier is that of typical class AB amplifiers. Test conditions (unless
otherwise specified): Input test signal is a 997 Hz sine wave; Power Consumption Mode 6 - Stereo Playback
w/16
Ω load. HP_GAIN = 1.1430. Best efficiency is realized when the amplifier outputs maximum power.
Figure 31. Power Dissipation vs. Output Power into Stereo 16
Ω
VA_HP = VA = 1.8 V
Figure 32. Power Dissipation vs. Output Power into Stereo 16
Ω (Log Detail)
VA_HP = VA = 1.8 V
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