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MA5302MS датащи(PDF) 30 Page - Infineon Technologies AG |
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MA5302MS датащи(HTML) 30 Page - Infineon Technologies AG |
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30 / 60 page ![]() Datasheet 30 of 59 V 2.1 11/2/2023 Integrated Class D Amplifier MA5302MS The single-supply configuration uses a virtual GND which sits in the middle of the power supply rail. The front- end section of the amplifier refers to the virtual GND as a reference. This method uses differential input to receive an input signal from a different voltage potential. It is recommended to allow input capacitors to fully settle to steady-state values before releasing the CSD pin to start PWM oscillation. The load current and inductor ripple current flow through the bus splitting capacitor. Figure 24 Typical Application Circuit with Single Power Supply Balanced Tied Load (BTL) output takes two output legs for speaker output. It doubles output power with double load impedance. Any load current does not flow through supply dividing capacitor; therefore BTL configuration is free from GND fluctuations. Also, the bus splitting capacitor can be much smaller. Higher output power and absence of GND fluctuation make BTL suitable for subwoofer applications. Figure 25 Typical Bridged Tied Load (BTL) Output Application with Split Power Supply |
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