MC3301, LM2900, LM3900
Figure 25. Amplifier and Driver for a 50
Ω
Line
510 k
+15 V
51 k
0.1
µF
+
1N914
or equiv
1N914
or equiv
5.6 k
+15 V
10
2N4403
or equiv
50
10
20
µF
+
2N4401
or equiv
Vin
–
VO
1.2 M
AV = 10
VO = 6.0 V(p–p)
Figure 26. Basic Bandpass and Notch Filter
R
R1
R1
TBP
R2
3
–
+
2
2(R | | QR)
Ir
BP
R
4
1
R
×
2
6
C
390 k
5
13
390 k
VCC
R2
R1
2(R1 | | R3)
11
12
7
TN R2
R3
10
C1
Notch
8
–
+
14
9
390 k
C
×
10
Vin
TBP = Center Frequency Gain
TN = Passband Notch Gain
1
w0 =
RC
R1 = QR
R1
TBP
R3 = TN R2
R2 =
C
–
+
Figure 27. Bandpass and Notch Filter
62 k
0.005
µF
0.005
µF
300 k
6
–
3
2
100 k
VCC
300 k
+
BP
300 k
120 k
VCC
11
0.1
µF
Vin
–
300 k
300 k
VCC
12
+
Amp 4
10
Notch
300 k
Amp 1
4
62 k
1
–
Amp 2
+
13
100 k
VCC
+
VCC (Pin 14) = +12 V
Ground – Pin 7
Center Frequency 500 Hz
Q=5
Bandpass Gain = 1
Bandpass Output
Notch Output
Pin 4
Pin 10
8
5
100 k
–
Amp 3
9
100 k
MOTOROLA ANALOG IC DEVICE DATA
2–121
ONSEMI [ ON SEMICONDUCTOR ]
