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ML1490PP Datasheet(PDF) 6 Page - LANSDALE Semiconductor Inc. |
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ML1490PP Datasheet(HTML) 6 Page - LANSDALE Semiconductor Inc. |
6 / 8 page www.lansdale.com Page 6 of 8 Issue A LANSDALE Semiconductor, Inc. ML1490 6 Figure 19. 60 MHz Power Gain Test Circuit Figure 20. Video Amplifier Figure 21. 30 MHz Amplifier (Power Gain = 50 dB, BW 1.0 MHz) Figure 22. 100 MHz Mixer L1 = 7 turns, #20 AWG wire, 5/16" Dia.,5/8" long L2 = 6 turns, #14 AWG wire, 9/16" Dia.,3/4" long C1,C2,C3 = (1–30) pF C4 = (1–10) pF 0.0001 µF Shield Output (50 Ω) +12 Vdc 0.001 µF 2 6 1 3 4 5 L2 L1 VAGC C1 Input (50 Ω) C4 C3 C2 VR(AGC) 8 RAGC ML1490 1 8 3 4 5 7 2 +12 Vdc VR(AGC) ei 5.6 k 10 k RL eo 0.001 µF VR(AGC) 1.0 µF 0.001 µF 0.001 µF 1.0 µF 1.0 µF ML1490 7 8 1 2 4 6 5 +12 Vdc 10 µH 5.6 k L1 T1 C2 RL = 50 Ω 1 – 10 pF VR(AGC) 0.002 µF (1 – 30) pF Input (50 Ω) VAGC 38 pF L1 = 12 turns, #22 AWG wire on a Toroid core, (T37–6 micro metal or equiv). T1: Primary = 17 turns, #20 AWG wire on a Toroid core, (T44–6). Secondary = 2 turns, #20 AWG wire. 0.002 µF 3 ML1490 +12 Vdc (1 – 30) pF (1 – 10) pF 100 L1 L2 IF Output Signal Input (100 MHz) Input from local oscillator (70 MHz) VAGC 6.0 V (30 MHz) L1 = 5 turns, #16 AWG wire, 1/4", ID Dia., 5/8" long L2 = 16 turns, #20 AWG wire on a Toroid core, (T44–6). 0.002 µF 0.002 µF 10 µH (1 – 30) pF (1 – 10) pF 7 ML1490 5 6 4 3 7 8 2 1 Figure 23. Two–Stage 60 MHz IF Amplifier (Power Gain 80 dB, BW 1.5 MHz) 3 2 5 6 1 8 3 2 4 5 6 1 8 200 µH (1–10) pF Input (50 Ω) VR(AGC) 10 k 5.1 k 0.002 µF +12 Vdc 7 (1–10) pF 1.0 k (1–10) pF 0.002 µF T1 39 pF 0.002 µF ML1490 ML1490 7 Shield Shield (1–10) pF 0.001 µF Output (50 Ω) RFC T2 24 pF RFC 10 µH T1: Primary Winding = 15 turns, #22 AWG wire, 1/4" ID Air Core Secondary Winding = 4 turns, #22 AWG wire, Coefficient of Coupling ≈ 1.0 T2: Primary Winding = 10 turns, #22 AWG wire, 1/4" ID Air Core Secondary Winding = 2 turns, #22 AWG wire, Coefficient of Coupling ≈ 1.0 4 ≈ Legacy Applications Information |
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