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Top 7 Best Amplifier Chip [2022 Review] - Doctor Findout!
https://doctorfindout.com/electronics/best-amplifier-chip/
2. LOXJIE A30 Desktop Stereo HiFi Audio Power Amplifier & Headphone Amplifier. MA12070 chip – The MA12070 is a super-efficient audio power amplifier based on proprietary multi-level switching technology. Connect USB for More Music at your fingertips – 32bit/384kHz USB audio input, and supports driver-free use.
Headphone and Low Power Amplifiers - STMicroelectronics
https://www.st.com/en/audio-ics/headphone-and-low-power-amplifiers.html
It achieves a total 2.1 mA current consumption at 100 μW output power (10 dB crest factor). Stand-by current consumption is as low as 0.6μA thus guaranteeing and extended battery life. The A22H165 comes into flip chip package measuring 1.65x1.65x0.6mm, 16 bumps, 0.4mm pitch.
Audio Amplifier Circuit
https://web.ece.ucsb.edu/Faculty/rodwell/Classes/ece2c/labs/Lab%201a%20-%202C%202007.pdf
This is an old chip that has been a popular choice for low-power audio applications for many years. There are many other audio amp ICs on the market (LM380 and LM383 are similar but higher-power amps from National), but the LM386 is sufficient for our purposes. It comes in three-flavors, the LM386-1, LM386-2, and LM386-3, which can provide 0.3W,
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