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MC3403 数据表(PDF) 6 Page - STMicroelectronics |
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MC3403 数据表(HTML) 6 Page - STMicroelectronics |
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6 / 11 page ![]() 1/4 MC3403 1/4 MC3403 1/4 MC3403 e1 R1 a R1 b R1 1 C R R 1 C R R eo e2 eo = C (1 + a + b) ( - ) e1 e 2 APPLICATION INFORMATION (continued) HIGH IMPEDANCE DIFFERENTIAL AMPLIFIER R1 1/4 MC3403 VO V(ref) V I R2 VO Hysteresis VOH V OL V(ref) VI L VI H VIL = R1 R1 + R2 [ VOL −V(ref) ] + V(ref) VIH = R1 R1 + R2 [ VOH −V(ref) ] + V(ref) H = R1 R1 + R2 [ VOH − V OL ] COMPARATOR WITH HYSTERESIS 1/4 MC3403 1/4 MC3403 1/4 MC3403 1/4 MC3403 R R C C R 100k Ω 100k Ω C1 R2 e I V(ref) R2 R1 Bandpass output V(ref) V(ref) R3 V(ref) C1 Notch output R = 160k Ω C = 0.001 µ F R1 = 1.6M Ω R2 = 1.6M Ω R3 = 1.6M Ω T = Passband notch gain N Where T = Center frequency gain BP V(ref ) = 1 2 VCC fO = 1 2 Π RC R1 = QR R2 = R1 TBP R3 = TN R2 C1 = 10C For : fO= 1kHz Q = 10 TBP = 1 TN = 1 BI-QUAD FILTER MC3303 - MC3403 - MC3503 6/11 |
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