ZXF36L01
FILTER CONFIGURATIONS AND RESPONSES (continued)
100nF
1
Input Signal
C
R
R
C
Ri
R=10kΩ
C=100nF
Rf
Rf=19.5kΩ
Ri=10kΩ
VSS
FI1
C1
RC1
R2
BI
MXO
RC2
GP1
GP2
GP3
VSS
5V
VDD
FI2
FO
MXI
LO
BI
BG
N/C
N/C
N/C
PD
VDD
24
Output Signal
100nF
5V
100nF
Filter AC Performance
30
25
20
15
10
5
0
-5
10
Notch Pass Filter Gain Response
100
1000
Frequency (Hz)
10000
Notch Pass Filter Phase Response
-90
-120
-150
-180
-210
-240
-270
10
100
1000
Frequency (Hz)
10000
1
fo = 2πRC
Q ∝ (Rf / Ri)
Where R, Ri and Rf ≥10kΩ and C ≥ 50 pF
See “Designing for a Value of Q” for more
details.
Typical responses for the circuit with
component values shown in circuit diagram.
ISSUE 3 - JANUARY 2002
6