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General description 1. Applications Pinout
https://oaktree-lab.com/files/VMA2012.pdf
VMA2012 is a compact, low power, high efficiency 3Wx2 stereo class D audio amplifier. It can drive two 8Ω speakers up to 3W when supply voltage is 5.5V. The THD+N is only 0.2% when output power is 1.5W. Low power, small size and high efficiency makes VMA2012 a ideal choice for applications where space and power is limited. 1. Applications
TPA2012D2 data sheet, product information and support …
https://www.ti.com/product/TPA2012D2
The TPA2012D2 is a stereo, filter-free, Class-D audio amplifier (Class-D amp) available in a DSBGA or WQFN package. The TPA2012D2 only requires two external components for operation. The TPA2012D2 features independent shutdown controls for each channel. The gain can be selected to 6, 12, 18, or 24 dB using the G0 and G1 gain select pins.
Designing Practical High Performance Class D Audio …
http://www.irf.com/product-info/audio/classdtutorial606.pdf
Class D Amplifier •Class D amplifier employs MOSFETs which are either ON or OFF state. Therefore ideally 100% efficiency can be achieved. •PWM technique is used to express analog audio signals with ON or OFF states in output devices. •A loss in the switching device caused by 1)finite transition speed, 2)ON state resistance and 3)gate charge. +VCC
Class D Audio Amplifier Design - irf.com
http://www.irf.com/product-info/audio/classdtutorial.pdf
Class D Audio Amplifier Design • Class D Amplifier Introduction • Gate Driver • MOSFET • Package • Design Example Theory of Class D operation, topology comparison How to drive the gate, key parameters in gate drive stage How to choose, tradeoff relationships, loss calculation Importance of layout and package, new packaging technology ...
Measuring Class-D Amplifiers for Audio Speaker …
https://www.ti.com/lit/an/sloa116/sloa116.pdf
Audio Power Amplifiers ABSTRACT This application report presents the results of an experiment conducted to demonstrate how to address the two most common concerns regarding speaker damage when using Class-Damplifiers. Determining if audio speaker limitations are violated can be challenging when using Class-Damplifiers. To
Class D Audio Power Amplifiers - Digital Input Audio …
https://www.st.com/en/automotive-infotainment-and-telematics/automotive-class-d-audio-power-amplifiers.html
1 x 45 W class D digital input automotive power amplifier with ILoad current monitoring, wide voltage operation range for car audio and telematic. FDA4100LV. 4 x 135 W / 2 x 270 W PWM digital input automotive power amplifier with I2C diagnostics, step-up driver and low voltage operation. FDA801.
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