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參數(shù)資料
| 型號： | AND8054 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Designing RC Oscillator Circuits with Low Voltage Operational Amplifiers and Comparators for Precision Sensor Applications |
| 中文描述： | RC振蕩器電路設計低電壓運算放大器和精密傳感器應用比較 |
| 文件頁數(shù)： | 13/28頁 |
| 文件大?。?/td> | 168K |
| 代理商： | AND8054 |
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AND8054/D
http://onsemi.com
13
Ratio Oscillator
Step 2: Solve N(s) using Method III (Routh’s Stability Test) shown in Appendix III
s4R1R2R3R4R5C1C2C3C4
s2(R3
R5)(R1R2C1C2)
N(s)
s3[(R3R5C3
R3R4C4
sR4R5C3
R4R5C4)R1R2C1C2]
R4
s
a0s4
a1s3
a2s2
a3s
[(R3R5C3
R4R5C3
a4
a0
a2
a4
R1R2R3R4R5C1C2C3C4
(R3
R5)(R1R2C1C2)
R4
a1
a3
R3R4C4
R4R5C4)R1R2C1C2]
R1R2R3R4R5C1C2C3C4
(R3R5C3
R3R4C4
Row s4
Row s3
a0
a1
a2
a3
a4
R4R5C4)R1R2C1C2
(R3
R4R5C3
R5)R1R2C1C2
a1s3
a3s
s(a1s2
a3)
0
Let s
j o:
–j
3
o
a
1
j
o
a
3
j
o
(a
1
2
o
a
3
)
0
2
o
a3
a1
R4R5C3
(R1R2C1C2)(R3R5C3
R3R4C4
R4R5C4)
R4
Determine when the row s
3
equation is equal to zero.
Routh’s Stability Test Array
Ratio Oscillator
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R5)(R1R2C1C2)
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s2(R3
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s4R1R2R3R4R5C1C2C3C4
s3[(R3R5C3)
(R3R4C4)
(R4R5C4)](R1R2C1C2)
sR4R5C3
R4
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á
o
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R1R2C1C2(R3R5C3
R3R4C4
R4R5C4)
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2
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R3C4
C4
R3
C4
C3
Ratio Oscillator
Step 3b: Subcircuit Amplifier Design Equations
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Integrator A
Gain/Pole Location
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á
Gain/Pole Location
á
V3
sR1C1
2 fR1C1
V1
sR2C2
2 fR2C2
R4(sR5C3
(R3
R5)(sR3C3
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V1
2 R1C1
1
1
1
2 R2C2
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Pole/Zero Locations
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fp1
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R3
R5
1
fp2
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á
á
1)(sR4C4
1)
–R4
–C3
C4
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R1
á
1
fz1
1
2
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RC Sensitivities
á
s
o
s
o
R2
s
o
C1
s
o
C2
s
o
C3
s
o
C4
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