MC1490 Motorola, MC1490 Datasheet
MC1490
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MC1490 Summary of contents
Page 1
... RF/IF/Audio Amplifier The MC1490 is an integrated circuit featuring wide–range AGC for use in RF/IF amplifiers and audio amplifiers over the temperature range, –40 to +85 C. High Power Gain Typ at 10 MHz 45 dB Typ at 60 MHz 35 dB Typ at 100 MHz Wide Range AGC Min MHz 6 ...
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... Input Voltage (Video Amplifier, See Figure 20 Vdc 5.0 V 5(AGC 1.0 MHz 1.0 0 1.0 k 0.1 100 0.05 10 0.01 0.1 0.2 0.5 1.0 2.0 5 INPUT VOLTAGE (mVRMS) 2 MC1490 Figure Symbol – AGC – – Figure 2. Voltage Gain versus Frequency (Video Amplifier, See Figure 20 ...
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... Figure 10. Noise Figure versus Frequency 10 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1 versus AGC Voltage V R(AGC) 5 MC1490P R AGC R AGC = 100 k R AGC = 5 R(AGC), AGC VOLTAGE (Vdc +25 C +75 C –55 C +125 C 5.6 5.8 6.0 6.2 6.4 6.6 6.8 7.0 V R(AGC), AGC VOLTAGE (Vdc) ...
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... GAIN REDUCTION ( MC1490P 1 4 RFC 0.002 50–150 turns, #22 AWG wire on a T12–44 micro metal Toroid core (–100 pF) MOTOROLA ANALOG IC DEVICE DATA AGC Gain Reduction Test circuit has tuned input providing a source resistance optimized for best noise figure ...
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... Figure 17 Forward Transmission Coefficient (Gain) 80 MHz 70 MHz 100 MHz 10 120 MHz 5.0 60 MHz 150 MHz 50 MHz 200 MHz 5.0 40 MHz 10 30 MHz 15 20 MHz 10 MHz MOTOROLA ANALOG IC DEVICE DATA MC1490 Figure 16 and Input and Output Reflection Coefficient Figure 18 Reverse Transmission Coefficient (Feedback) 5 ...
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... R L 5.6 k MC1490P 1 1 0.001 F +12 Vdc 0.001 F Figure 22. 100 MHz Mixer V AGC 6 – 10 – 30 Output (30 MHz) 6 MC1490P +12 Vdc 2 0.002 F 0.002 dB, BW 1.5 MHz) Shield Output 8 ( MC1490P 6 (1–10) pF ...
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... Making the decay long and attack short is accomplished by making R x small and R2 large. (A Darlington emitter–follower may be needed if extremely slow decay times are required.) The emitter–follower Q2 drives the AGC Pin 5 of the MC1490P and reduces the gain. R3 controls the slope of signal compression Input R3 ...
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... MAX MIN MAX A 9.40 10.16 0.370 0.400 B 6.10 6.60 0.240 0.260 C 3.94 4.45 0.155 0.175 D 0.38 0.51 0.015 0.020 F 1.02 1.78 0.040 0.070 G 2.54 BSC 0.100 BSC H 0.76 1.27 0.030 0.050 J 0.20 0.30 0.008 0.012 K 2.92 3.43 0.115 0.135 L 7.62 BSC 0.300 BSC ––– 10 ––– 0.76 1.01 0.030 0.040 *MC1490/D* MOTOROLA ANALOG IC DEVICE DATA MC1490/D ...