- This article explains the purpose of the low-pass filter components in Class-D amplifiers and how to calculate their values
- One trick.
Place voltage source with AC magnitude = 1V in series with output between output and load. Do AC analysys and measure current flowing though output terminal – Iout.
The output impedance Zout=1V/Iout.
- Why we have to satisfy metal density in layout.
- some thing about the opamp’s noise performance
- The paper “Determination of stability using return ratios in balanced fully differential feedback circuits” by Paul Hurst, IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS-11: ANALOG AND DIGITAL SIGNAL PROCESSING, VOL. 42, NO. 12, DECEMBER 1995