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MC3303DR2 Fiches technique(PDF) 7 Page - ON Semiconductor |
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MC3303DR2 Fiches technique(HTML) 7 Page - ON Semiconductor |
7 / 9 page MC3403, MC3303 http://onsemi.com 7 1 2 1 2 1 2 pRC Figure 13. Bi−Quad Filter Vref = VCC − + R2 C1 Vin Vref Vref Vref Vref R 100 k 100 k R2 R1 R3 C1 Bandpass Output R = 160 k W C = 0.001 mF R1 = 1.6 M W R2 = 1.6 M W R3 = 1.6 M W = center frequency gain = passband notch gain fo = R1 = QR R2 = R3 = TNR2 C1 = 10 C fo Q TBP TN R1 TBP R C C Notch Output 1/2 MC3403 1/2 MC3403 1/2 MC3403 1/2 MC3403 − − − + + + 1 2 Figure 14. Function Generator Vref = VCC Triangle Wave Output Vref Square Wave Output Vref R2 R3 75 k 300 k R1 100 k Rf C − f = R1 +RC if R3 = R2 R1 R2 +R1 + 1/2 MC3403 1/2 MC3403 − + Q p fo C Figure 15. Multiple Feedback Bandpass Filter 1/2 MC3403 − + Vin R1 C C R3 VCC VO CO CO = 10 C Vref R2 Vref = VCC fo = center frequency Given: A(fo) = gain at center frequency Choose value fo, C Then: R3 = R2 = R1 = For less than 10% error from operational amplifier where fo and BW are expressed in Hz. If source impedance varies, filter may be preceded with voltage follower buffer to stabilize filter parameters. R3 2 A(fo) R1 R5 4Q2 R1 −R5 Oo fo < 0.1 BW For: = 1.0 kHz = 10 = 1 = 1 Where: TBP TN 4 CRf R1 |
Numéro de pièce similaire - MC3303DR2 |
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Description similaire - MC3303DR2 |
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