Class d amplifier

Class D Amplifier Design Basics II - irf.com

Class D Amplifier Innovations Device Technologies Packaging Technology Signal Processing Technologies • MOSFET FOM (Figure of Merit) improvements • Higher voltage capability • Faster and accurate switching time • High gain low noise process • High GBW (Gain Band-Width) process • Smaller • Low stray inductance • Surface mount

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Basic Amplifiers and Differential Amplifier

(cont’d) Voltage Amplifier Model Time Response of the 2 nd Order Model 2/22/2011 Insoo Kim (cont’d) Voltage Amplifier Model 2/22/2011 Insoo Kim. Feedback Characteristics Gain desensitization Band width extension A A 1 A 1 A A (1 A) A A 1 A A x x A f f f 2 s o f d d d d

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PVA-4CR12 Controller Datasheet 51 en 17564736907

• A/D conversion24 Bit, Sigma-Delta, 128 times oversampling Audio inputs (100 V)AMP IN: 2 x 6-pin port • Max. voltage120 V • Max. current7.2 A • Max. power500 W • Signal detection≥ 3 V Audio outputs (line level)LINE OUT: 1 x RJ-45, 4 x 3-pin port • Output level (nominal)6 dBu • Output level (max. before clip)9 dBu