MC34071P Просмотр технического описания (PDF) - Motorola => Freescale
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MC34071P Datasheet PDF : 20 Pages
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MC34071,2,4,A MC33071,2,4,A
(Typical Single Supply Applications VCC = 5.0 V)
Figure 37. AC Coupled Noninverting Amplifer
Figure 38. AC Coupled Inverting Amplifier
VCC
5.1 M
VO
0
3.7 Vpp
20 k
Cin
1.0 M
+
CO
VO
36.6 mVpp
MC34071
–
Vin
100 k
10 k
RL
1.0 k
AV = 101
BW (–3.0 dB) = 45 kHz
VCC
0
100 k
3.7 Vpp
68 k
Cin 10 k
Vin 370 mVpp
+
MC34071
–
CO
VO
10 k
100 k
RL
AV = 10 BW (–3.0 dB) = 450 kHz
Figure 39. DC Coupled Inverting Amplifer
Maximum Output Swing
Figure 40. Unity Gain Buffer TTL Driver
VO
2.63 V
4.75 Vpp
91 k
5.1 k
100 k
+
MC34071
–
1.0 M
VCC
5.1 k
RL
VO
Vin
AV = 10
BW (–3.0 dB) = 450 kHz
Figure 41. Active High–Q Notch Filter
Vin ≥ 0.2 Vdc
R
R
Vin
16 k
16 k
C
0.01
32 k 2.0 R
2.0 C
2.0 C
0.02
0.02
–
VO
MC34071
+
fo = 1.0 kHz
fo =
1
4πRC
2.5 V
0
Vin
+
MC34071
–
0 to 10,000 pF
Cable
MC54/74XX
TTL Gate
Figure 42. Active Bandpass Filter
C
0.047
R1
Vin 1.1 k
C
R2
0.047
5.6 k
Given fo = Center Frequency
AO = Gain at Center Frequency
Choose Value fo, Q, Ao, C
Then:
Q
R3
R3 =
R1 =
πfoC
2Ho
R3
2.2 k
–
MC34071
+ VCC
VO
fo = 30 kHz
0.4 VCC
Ho = 10
Ho = 1.0
R1 R3
R2 = 4Q2R1–R3
For less than 10% error from operational amplifier
Qofo
GBW
< 0.1
where fo and GBW are expressed in Hz.
GBW = 4.5 MHz Typ.
12
MOTOROLA ANALOG IC DEVICE DATA
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