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MC1374 数据表(PDF) 8 Page - Motorola, Inc |
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MC1374 数据表(HTML) 8 Page - Motorola, Inc |
8 / 10 page MC1374 8 MOTOROLA ANALOG IC DEVICE DATA Figure 19. A Channel 4 Vestigial Sideband Filter Figure 20. Audio Pre–Emphasis Circuit Figure 21. Crystal Controlled RF Oscillator for Channel 3, 61.25 MHz NOTE: See Application Note AN829 for further information. VCC 8 9 RL = 75 Ω 2.7k 39 pF 33pF 8.2pF 100 Ω Output 75 Ω Both transformer windings 4T #23 AWG close wound on 1/4 ″ ID on common axis, 3/8 ″ spacing. 8T #23 AWG close wound on 1/8 ″ ID, knife tuned to trap Channel 3 61.25 MHz. 24 Ω 24 Ω 33pF 33pF 24 Ω 8.2pF 0 –10 –20 –30 –40 –50 –60 –70 61 65 69 73 Ch. 4 Pix Ch. 4 S f, FREQUENCY (MHz) “Flat” Audio Input CC = 0.1µF C = 0.0012 µF r = 56k Ω 6.0k Ω R 14 Audio Input 5 Gnd –+ 25 20 15 10 5 0 –5 21 210 2100 21k 2 π RC 1 2 π (r + R)CC 1 f, FREQUENCY (MHz) 2 π (2100 Hz) 1 Pre–emphasis = 75 µs = rC = 2 π rC 1 VCC C1 0.001 R1 470 R2 R3 61.252 MHz C2 56pF Ra 180 Rb 18 L1 7 6 0.15 µH 470 470 MC1374 |
类似零件编号 - MC1374 |
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类似说明 - MC1374 |
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