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AVCC bypass on TPA3113D2

Marc Nussbaum
Prodigy 50 points
Other Parts Discussed in Thread: TPA3113D2

I am using the TPA3113D2 Class-D Audio Amplifier. In the part's data sheet text on page 24, paragraph 1 it states: " A 10 μF capacitor on the AVCC terminal is adequate. Also, a small decoupling resistor between AVCC and PVCC can be used to keep high frequency class D noise from entering the linear input amplifiers." The application schematic in the data sheet (Figure 33) shows a 10 ohm series resistor and a 1uF cap to ground. This is the same configuration as on the EVM board. Which is the correct solution? 1uF cap and 10 ohm, 10uF without the resistor or 10uF with the 10 ohm resistor?

 

Thanks, Marc