Tools Some practice ques. UNIVERSITY OF UL. X 313 180% fep = 30 0 HE 8) Before the digitisation process of a recorded ECG signal, high-frequency signal components BELOW above 200 Hz must be eliminated, and the passed signal components require amplification at a voltage gain of -10 VV. To achieve this signal conditioning process, the first order active low-pass filter circuit below is used. If the value of R2 is set to 20 KQ, determine the required values of R1 and C for the above proposed signal conditioning process. Signal conditioning 2TT Rz C Rz process R2 GAin =-10 =- PASS-BAND Ri R1 ECG Digitisation process DELL

5.q4.pt1

-3dB point in frequency response of an active filter corresponds to  A.   absolute value negative 3dB of gain   B.   decrement of 3dB from maximum gain   C.   minimum gain attained   D.   minus 3dB of average gain value

2nd problem only