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ADRF6821 датащи(PDF) 14 Page - Analog Devices |
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ADRF6821 датащи(HTML) 14 Page - Analog Devices |
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14 / 61 page ![]() ADRF6821 Data Sheet Rev. A | Page 14 of 61 110 100 60 30 80 90 50 70 40 20 600 1040 1480 1920 2360 2800 LO FREQUENCY (MHz) MIXER_GAIN_PEAK = 0 MIXER_GAIN_PEAK = 3 DIFFERENCE PRODUCT SUM PRODUCT Figure 16. Output IP2 vs. LO Frequency for Various MIXER_GAIN_PEAK (Register 0x003A, Bits[1:0]) Settings 110 100 60 30 80 90 50 70 40 20 600 1040 1480 1920 2360 2800 LO FREQUENCY (MHz) DSA = 0dB DSA = 15dB DIFFERENCE PRODUCT SUM PRODUCT Figure 17. Output IP2 vs. LO Frequency, Measured on −10 dBm for Each Tone at the IF Output for Various DSA Settings 90 80 40 10 60 70 30 50 20 0 0 100 200 300 400 500 IF FREQUENCY (MHz) LO = 1000MHz LO = 2000MHz LO = 2800MHz DIFFERENCE PRODUCT SUM PRODUCT Figure 18. Output IP2 vs. IF Frequency, RF Sweep with Fixed LO, Measured on −10 dBm for Each Tone at the IF Output –10 –90 –80 –40 –60 –70 –30 –50 –20 –110 –100 0 100 200 300 400 500 IF FREQUENCY (MHz) +105°C +27°C –40°C Figure 19. HD2 vs IF Frequency, LO at 2000 MHz and POUT = −7 dBm –10 –90 –80 –40 –60 –70 –30 –50 –20 –110 –100 0 50 150 100 200 250 300 350 IF FREQUENCY (MHz) +105°C +27°C –40°C Figure 20. HD3 vs. IF Frequency, LO at 2000 MHz and POUT = −7 dBm –10 –90 –80 –40 –60 –70 –30 –50 –20 –110 –100 0 100 200 300 400 500 IF FREQUENCY (MHz) LO = 1000MHz LO = 2000MHz LO = 2800MHz HD3 HD2 Figure 21. HD2 and HD3 vs. IF Frequency for Various LO Frequencies |
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