| 摘要 |
<p>The present invention has a structure that passes differential inputs A1 (positive electrode input) and B1 (negative electrode input) through transconductance amplifiers (50-80), combining an internal positive electrode signal and an internal negative electrode signal. The transconductance amplifiers (50, 60, 70, 80) cancel out a common-mode signal component, strengthen a normal-mode signal component, and perform a function equivalent to a common-mode choke coil. The invention also controls the characteristics and capacitors (91, 92) of the transconductance amplifiers, allowing control of gain and bandwidth.</p> |
