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ADRF6820 Datasheet(PDF) 11 Page - Analog Devices |
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ADRF6820 Datasheet(HTML) 11 Page - Analog Devices |
11 / 45 page Data Sheet ADRF6820 Rev. C | Page 11 of 45 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 7 8 1.45 1.65 1.85 2.05 2.25 VCM (V) 900MHz 1900MHz 2100MHz 2650MHz BWSEL = 0 BWSEL = 2 Figure 15. Gain vs. Common-Mode Voltage (VCM) for fRF = 900 MHz, fRF = 1900 MHz, fRF = 2100 MHz, and fRF = 2650 MHz for BWSEL = 0 and BWSEL = 2 9 10 11 12 13 14 15 16 17 18 19 1.45 1.65 1.85 2.05 2.25 VCM (V) 900MHz 1900MHz 2100MHz 2650MHz BWSEL = 0 BWSEL = 2 Figure 16. Input P1dB (IP1dB) vs. Common-Mode Voltage (VCM) for fRF = 900 MHz, fRF = 1900 MHz, fRF = 2100 MHz, and fRF = 2650 MHz 0 50 100 150 200 250 300 350 1.45 1.55 1.65 1.75 1.85 1.95 2.05 2.15 2.25 VCM (V) ICC (3.3V), INTERNAL LO ICC (3.3V), EXTERNAL LO ICC (5V) Figure 17. Current Consumption (ICC) vs. Common-Mode Voltage (VCM), Internal and External LO, fRF = 900 MHz, fRF = 1900 MHz, fRF = 2100 MHz, fRF = 2100 MHz, and fRF = 2650 MHz –180 –160 –140 –120 –100 –80 –60 –40 –20 0 2.85 3.35 3.85 4.35 4.85 5.35 VCO FREQUENCY (GHz) 1kHz OFFSET 10kHz OFFSET 50kHz OFFSET 1MHz OFFSET 10MHz OFFSET TA = –40°C TA = +25°C TA = +85°C Figure 18. Open-Loop Phase Noise for 1 kHz, 10 kHz, 50 kHz, 1 MHz, and 10 MHz Offsets –165 –160 –155 –150 –145 –140 –135 –130 –125 –120 –115 –110 –105 –100 –95 –90 –85 –80 2.85 3.35 3.85 4.35 4.85 5.35 VCO FREQUENCY (GHz) 100kHz OFFSET 500kHz OFFSET 800kHz OFFSET 40MHz OFFSET TA = –40°C TA = +25°C TA = +85°C Figure 19. Open-Loop Phase Noise for 100 kHz, 500 kHz, 800 kHz, and 40 MHz Offsets –160 –155 –150 –145 –140 –135 –130 –125 –120 –115 –110 –105 –100 –95 –90 1425 1550 1675 1800 1925 2050 2175 2300 2425 2550 2675 2800 LO FREQUENCY (MHz) 50kHz OFFSET 100kHz OFFSET 40MHz OFFSET 500kHz OFFSET 200kHz OFFSET TA = –40°C TA = +25°C TA = +85°C 1MHz OFFSET Figure 20. Closed-Loop Phase Noise vs. LO Frequency, 20 kHz Bandwidth Loop Filter, Measured with DIV4_EN = 1 (Divide by 2) |
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