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MAX2021 Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX2021 Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 14 page High-Dynamic-Range, Direct Up-/Downconversion 750MHz to 1200MHz Quadrature Mod/Demod _______________________________________________________________________________________ 7 DEMODULATOR CONVERSION LOSS vs. LO FREQUENCY LO FREQUENCY (MHz) 975 900 1125 1050 825 10 9 8 11 12 7 750 1200 PLO = 0dBm, VCC = 5.0V TC = +85 °C TC = +25 °C TC = -40 °C DEMODULATOR INPUT IP3 vs. LO FREQUENCY LO FREQUENCY (MHz) 975 900 1125 1050 825 36 34 32 38 40 30 750 1200 PLO = 0dBm, TC = +25 °C VCC = 4.75V VCC = 5.25V VCC = 5.0V DEMODULATOR INPUT IP3 vs. LO FREQUENCY LO FREQUENCY (MHz) 975 900 1125 1050 825 36 34 32 38 40 30 750 1200 PLO = 0dBm, VCC = 5.0V TC = +85 °C TC = +25 °C TC = -40 °C DEMODULATOR INPUT IP2 vs. LO FREQUENCY LO FREQUENCY (MHz) 1125 1050 975 900 825 60 70 80 90 50 750 1200 TC = -40 °C TC = +85 °C TC = +25 °C PLO = 0dBm, VCC = 5.0V DEMODULATOR PHASE IMBALANCE vs. LO FREQUENCY -8 -6 -4 -2 0 2 4 6 8 10 -10 LO FREQUENCY (MHz) 1125 1050 975 900 825 750 1200 PLO = -3dBm PLO = 0dBm PLO = +3dBm PLO = -6dBm -0.15 -0.10 -0.05 0 0.05 0.10 0.15 0.20 -0.20 DEMODULATOR AMPLITUDE IMBALANCE vs. LO FREQUENCY LO FREQUENCY (MHz) 1125 1050 975 900 825 750 1200 PLO = -6dBm, -3dBm, 0dBm, +3dBm Typical Operating Characteristics (MAX2021 Typical Application Circuit, VCC = +4.75V to +5.25V, GND = 0V, I/Q differential inputs driven from a 100 Ω DC-coupled source, 0V common-mode input, PRF = 5dBm, PLO = 0dBm, 750MHz ≤ fLO ≤ 1200MHz, 50Ω LO and RF system impedance, R1 = 432Ω, R2 = 619 Ω, R3 = 332Ω, TC = -40°C to +85°C. Typical values are at VCC = +5V, fLO = 900MHz, TC = +25°C, unless otherwise noted.) LO PORT RETURN LOSS vs. LO FREQUENCY LO FREQUENCY (MHz) 975 900 1125 1050 825 +10 +15 +20 +5 0 +25 750 1200 PLO = -6dBm, -3dBm PLO = +3dBm PLO = 0dBm RF PORT RETURN LOSS vs. LO FREQUENCY LO FREQUENCY (MHz) 1130 1035 940 845 +40 +35 +30 +25 +20 +15 +10 +5 0 +45 750 1225 PLO = -6dBm, -3dBm, 0dBm, +3dBm IF FLATNESS vs. BASEBAND FREQUENCY BASEBAND FREQUENCY (MHz) 70 60 10 20 30 40 50 -11 -10 -9 -8 -7 -6 -5 -4 -12 080 fLO = 1000MHz fLO = 900MHz PLO = 0dBm DEMODULATOR |
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