CS42L51 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS42L51

Low Power, Stereo CODEC with Headphone Amp

Cirrus Logic 

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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.

VA_HP = VA = 1.8 V

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)

DS679F1

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