PAM8406 5V Dual-Channel (5W+3W) Alternative Class-D/Class-AB Stereo Audio Amplifier

Description

The PAM8406 is a 5W audio amplifier with an alternative option between Class-D and Class-AB output which makes PAM8406 very ideally for the applications efficiency-EMI compatible. PAM8406 offers low THD+N, high SNR allowing it to achieve high quality sound reproduction. The 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 to save the system cost and PCB area. The efficiency of the PAM8406 is up to 90%. It can extend the battery life, ideally for portable applications. The PAM8406 is fully protected against faults with short circuit protection and thermal protection. Recommended Operating Conditions:Supply Voltage Range: 2.5 to 5.5 VOperation Temperature Range: -40 to +85 °CJunction Temperature Range: -40 to +125 °C Applications:LCD TVs;Mutimedia Speakers;AM/FM System;DABs. Know before Use:1. The recommended operating voltage is 5.5V.2. When the PAM8406 works in Class-D with LC filters, it should be connected with the speaker before it's powered on, otherwise it will be damaged easily.3. When the PAM8406 works without LC filters, it's better to add a ferrite chip bead at the outgoing line of speaker for suppressing the possible electromagnetic interference.4. One should not make the input signal too large. Large signal can cause the clipping of output signal when increasing the volume. This will damage the device because of big gain of the PAM8406.