Class-D amplifier enhances automotive audio performance
A Class-D mono audio amplifier, the PAM2011Q from Diodes delivers up to 3 W of output power for automotive applications. Designed for instrument clusters, dashboard and backup cameras, driver notification chimes and warnings, and emergency call (eCall/T-box) systems, the filter-free amplifier provides 1.8-mA quiescent current and up to 94% efficiency.
The PAM2011Q comes in a compact, thermally enhanced package and requires minimal external components, simplifying design and reducing system cost. It operates from a 2.8-V to 6.0-V supply and delivers 2.53 W at 1% THD and 3.15 W at 10% THD from a 5-V supply into a 4-Ω load. Audio specifications include THD+N below 0.03% and 21-µV integrated output noise (A-weighted) at 6-dB gain.
The amplifier is AEC-Q100 qualified and operates over a junction temperature range of -40°C to +125°C. Integrated de-pop circuitry provides silent startup and shutdown while eliminating unwanted noise. Overvoltage and overtemperature protection with auto-recovery are also integrated to enhance system reliability.
The PAM2011Q is available now from Mouser Electronics.
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