PAM8404KGR

PAM8404KGR is a high-efficiency filterless class-D audio amplifier. Features like 89% efficiency, improved RF-rectification immunity, and a very small PCB area make the PAM8404 class-D amplifier ideal for cellular handsets and PDA applications. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the PAM8404. This allows independent gain by summing signals from separate sources, and has as low as 43µV noise floor. Applications include LCD monitor / TV projector, notebook computers, portable speakers, portable DVD players, game machines, cellular phones/speaker phones.

• 2.5V to 5.5V supply voltage
• Superior low noise without input, short circuit protection, thermal shutdown
• Few external components to save the space and cost
• Short circuit protection, thermal shutdown
• Output power is 3W typ at VDD=5.0V, THD+N=10%, f=1kHz, RL=4ohm
• Total harmonic distortion plus noise is 0.15% typ at f=1kHz, VDD=5.0V, Po=0.5W, RL=8ohm
• Power supply ripple rejection is -48dB typ at f=100kHz, VDD=5.0V, inputs AC-grounded with CIN=1.0μF
• Quiescent current is 11mA typ at no load, VDD=5.0V
• U-QFN4040-20 package
• Operation temperature range from -40 to +85°C

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