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13 sty 2024 · I am trying to optimize this circuit for low noise, good bass response, and clear mids and highs. I have designed and built amplifiers with chip amps like the LM3886, LM386, TDA2050, and TDA2003 before.
27 gru 2006 · This is my LM4562 based preamplifier. Noise free and transparent sound - this is what I can say after first tests. Output offset voltage (even without DC blocking caps) - about 1-3mV. This PCB can be used for every dual op-amp. I used R3,R9: 2k, R4,R10: 680R. schematic
The LM4562 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LM4562 combines extremely low voltage noise density (2.7nV/√ Hz ) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications.
This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF. The LM4562 is available in an 8-lead narrow body SOIC, an 8-lead PDIP, and an 8-lead TO-99.
This series is for applications such as high quality audio amplification, multi-media, imaging, line drivers/receivers and active filters. The output current is for 600Ohm loads with more than 26mA drive with THD+N over a wide voltage range.
9 sty 2023 · You should check whether the op-amp is capable of driving a loudspeaker. If it isn't then add a series resistor of about 560 Ω to the added series capacitor I mentioned above. Also, check that the power rails of the op-amp are capable of working with the supplies you have given it.
Suitable for ultra high-quality audio amplification, high-fidelity preamplifiers, high-performance professional audio, high-fidelity active equalization and crossover networks, high-performance line drivers and receivers applications. Easily drives 600 ohm loads; Optimized for superior audio signal fidelity; Output short circuit protection
