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ADMV1013ACCZ-R7 データシート(PDF) 29 Page - Analog Devices |
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ADMV1013ACCZ-R7 データシート(HTML) 29 Page - Analog Devices |
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29 / 39 page ![]() Data Sheet ADMV1013 Rev. A | Page 29 of 39 Figure 88 shows the conversion gain vs. RF frequency at two different Register 0x0A settings, the recommended setting and the default setting, and three different temperatures for IF mode. The default values provides slightly less gain and a larger gain variation across temperature compared to the recommended setting. 0 2 4 6 8 10 12 14 16 18 20 22 24 28 26 23 25 27 29 31 33 35 37 39 41 43 45 RF FREQUENCY (GHz) –40°C, 0xE700 +25°C, 0xE700 +85°C, 0xE700 –40°C, 0x0000 +25°C, 0x0000 +85°C, 0x0000 Figure 88. Conversion Gain vs. RF Frequency at Maximum Gain for Various Temperatures and Register 0x0A Settings (Default and Recommended Register 0x0A Settings), fIF = 2 GHz PERFORMANCE BETWEEN DIFFERENTIAL vs. SINGLE-ENDED LO INPUT Figure 89 to Figure 91 show the conversion gain, output IP3, and sideband rejection performance for operating the ADMV1013 LO input as differential vs. single ended. The measurements were performed with 0 dBm LO input power, IF mode, with an IF frequency of 3.5 GHz, upper sideband, and TA = 25°C. 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 23 25 27 29 31 33 35 37 39 41 43 45 RF FREQUENCY (GHz) SINGLE-ENDED POSITIVE SIDE DISABLE SINGLE-ENDED NEGATIVE SIDE DISABLE DIFFERENTIAL Figure 89. Conversion Gain vs. RF Frequency for Three Different LO Mode Settings, fIF = 3.5 GHz (Upper Sideband) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 23 25 27 29 31 33 35 37 39 41 43 45 RF FREQUENCY (GHz) SINGLE-ENDED POSITIVE SIDE DISABLE SINGLE-ENDED NEGATIVE SIDE DISABLE DIFFERENTIAL Figure 90. Output IP3 vs. RF Frequency for Three Different LO Mode Settings, RF Amplitude = −20 dBm per Tone at 20 MHz Spacing, fIF = 3.5 GHz (Upper Sideband) 0 5 10 15 20 25 30 35 40 23 25 27 29 31 33 35 37 39 41 43 45 RF FREQUENCY (GHz) SINGLE-ENDED POSITIVE SIDE DISABLE SINGLE-ENDED NEGATIVE SIDE DISABLE DIFFERENTIAL Figure 91. Sideband Rejection vs. RF Frequency for Three Different LO Mode Settings, RF Amplitude = −30 dBm per Tone at 20 MHz Spacing, fIF = 3.5 GHz (Upper Sideband) |
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