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LTC5541IUHTRPBF Datasheet(PDF) 6 Page - Linear Technology |
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LTC5541IUHTRPBF Datasheet(HTML) 6 Page - Linear Technology |
6 / 16 page LTC5541 6 5541f SSB Noise Figure vs RF Blocker Level LO Switch Isolation vs LO Frequency–LO1 Selected LO Switch Isolation vs LO Frequency–LO2 Selected Conversion Gain Distribution IIP3 Distribution SSB Noise Figure Distribution TYPICAL AC PERFORMANCE CHARACTERISTICS Low-Side LO (continued) VCC = 3.3V, VCCIF = 3.3V, SHDN = Low, TA = 25°C, PLO = 0dBm, PRF = –3dBm (–3dBm/tone for two-tone IIP3 tests, Δf = 2MHz), IF = 190MHz, unless otherwise noted. Test circuit shown in Figure 1. 2-Tone IF Output Power, IM3 and IM5 vs RF Input Power Single-Tone IF Output Power, 2 × 2 and 3 × 3 Spurs vs RF Input Power 2 × 2 and 3 × 3 Spur Suppression vs LO Power RF INPUT POWER (dBm/TONE) –12 –80 10 0 –10 –20 –30 –40 –50 –60 –70 20 –9 6 –6 –3 0 5541 G13 3 IFOUT IM3 IM5 RF1 = 1949MHz RF2 = 1951MHz LO = 1760MHz RF INPUT POWER (dBm) –12 –80 10 0 –10 –20 –30 –40 –50 –60 –70 20 –9 15 –6 –3 0 5541 G14 369 12 IFOUT (RF = 1950MHz) LO = 1760MHz 3RF-3LO (RF = 1823.33MHz) 2RF-2LO (RF = 1855MHz) LO INPUT POWER (dBm) –6 –80 –55 –60 –65 –70 –75 –50 –4 6 –2 0 2 5541 G15 4 RF = 1950MHz PRF = –10dBm LO = 1760MHz 3RF-3LO (RF = 1823.33MHz) 2RF-2LO (RF = 1855MHz) RF BLOCKER POWER (dBm) –25 9 14 15 16 13 12 11 10 17 –20 5 –15 –10 –5 5541 G16 0 RF = 1950MHz BLOCKER = 2050MHz PLO = –3dBm PLO = 0dBm PLO = 3dBm LO FREQUENCY (GHz) 1.2 40 55 50 45 60 1.4 2.2 1.6 1.8 2.0 5541 G17 PLO2 = –3dBm PLO2 = 0dBm PLO2 = 3dBm LOSEL = LOW PLO1 = 0dBm LO FREQUENCY (GHz) 1.2 40 55 50 45 60 1.4 2.2 1.6 1.8 2.0 5541 G18 PLO1 = –3dBm PLO1 = 0dBm PLO1 = 3dBm LOSEL = HIGH PLO2 = 0dBm CONVERSION GAIN (dB) 6.9 0 35 30 25 20 15 10 5 40 7.1 8.1 8.3 8.5 7.3 7.5 7.7 5541 G18a 7.9 RF = 1950MHz 85°C 25°C –40°C IIP3 (dBm) 25.0 0 18 16 14 12 10 8 6 4 2 20 26.6 27.0 27.4 25.4 25.8 5541 G18b 26.2 RF = 1950MHz 85°C 25°C –40°C SSB NOISE FIGURE (dB) 8.2 0 30 25 20 15 10 5 35 9.8 10.2 10.6 11.0 8.6 9.0 5541 G18c 9.4 RF = 1950MHz 85°C 25°C –40°C |
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