HAA9005 General Description:
The HAA9005 is a high efficiency filter-less Class-D audio power amplifier with Automatic Gain Control (AGC)technology. The device constantly monitors output power and dynamically adjusts internal gain to prevent long time overstress across the speaker.
The AGC with two limited output power levels control helps designer to select suitable output power which match the speaker.
The HAA9005 can deliver 0.6W or 0.85W continuous average power to an 8Ω load at 4.2V power supply.
It features high efficiency up to 88%, which helps extend battery life when playing audio.
The HAA9005 features excellent output noise at gain=8V/V to improve the signal to noise ratio (SNR) in speaker mode.
The HAA9005 is available in small 1.5mmX1.5mm FCQFN-9
package with 500μm pitch.
HAA9005 Features:
Built-inAGC with Dual Output Power Levels
Control:0.6W@8Ω, 4.2V or 0.85W@8Ω, 4.2V
Excellent Output Noise :
42μVrms @Gain=8V/V,A-weighted
Improved PSRR :
-70dB@Speaker Mode(Gain=8V/V,A-weighted)
High Efficiency : 88%
Improved THD+N :
0.006%@ 0.5W, 8Ω, 1kHz
Thermal and Short-circuit Protection withAuto Recovery
Built-in Pop-and-click Noise Suppression
Low RF Susceptibility
Single Wire Pulse Control
Available in 1.5mmX1.5mm FCQFN-9 Package
HAA9005 Applications:
Mobile Phones and Tablets
Portable Media Players
HAA9005 Simplified Application Diagram:
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