Filtered noise: Chapter 9 Figure 06 Chapter 9 Figure 07.

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Presentation transcript:

Filtered noise: Chapter 9 Figure 06 Chapter 9 Figure 07

What’s the total power of white noise?

Slope: -10dB/dec f2 f1

Equivalent noise bandwidth of a filter = the bandwidth of an ideal filter allowing the same amount of noise to pass through. Chapter 9 Figure 09 -3dB BW Noise in this band can still pass through -3dB BW noise BW

Band pass filter: noise BW

Chapter 9 Figure 12

Chapter 9 Figure 13

Rs L Rs L Vs VRs iL

Sampling noise

So make the input stage low noise and high gain! 1.03 Chapter 9 Figure 16 So make the input stage low noise and high gain!

Chapter 9 Figure 18

Chapter 9 Figure 20