PAM8406DR

PAM8406DR is an audio amplifier with an alternative option between class-D and class-AB output, which makes the device ideal for efficiency-EMI compatible applications. The PAM8406’s low THD+N and high SNR allow it to achieve high-quality sound reproduction. The device’s fully differential output with new filter-less architecture (class-D mode) allows the device to drive the speaker directly, requiring no low-pass output filters and DC blocking capacitors, thus saving system cost and PCB area. The device has an efficiency of up to 90%. It can extend battery life, which is ideal for portable applications. It is fully protected against faults with short-circuit protection and thermal protection. Applications include LCD TVs, multimedia speakers, AM/FM systems, and DABs.

• Filterless, low quiescent current and no EMI, low THD+N at fully output range
• Superior low noise, no pop at turn-on/off
• Full short-circuit protection with auto recovery, thermal shutdown
• Few external components to save space and cost
• Supply voltage range from 2.5 to 5.5V
• Output power is 5.0W typ at VDD=5.0V, THD+N=10%, f=1kHz, RL=2ohm (class-D)
• Power supply ripple rejection is -70dB typ at f=100Hz, VDD=5.0V, inputs AC-grounded with CIN=0.47µF
• Signal-to-noise ratio is 90dB typ at VDD=5.0V, THD=1%, GV=24db, f=1kHz
• SOP-16 package
• Operation temperature range from -40 to +85°C

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