MAX2681 MAXIM [Maxim Integrated Products], MAX2681 Datasheet
MAX2681
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MAX2681 Summary of contents
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... RF input frequencies between 400MHz and 2500MHz, and downconvert to IF output frequencies between 10MHz and 500MHz. The MAX2680/MAX2681/MAX2682 operate from a sin- gle +2.7V to +5.5V supply, allowing them to be pow- ered directly from a 3-cell NiCd or a 1-cell Lithium battery. These devices offer a wide range of supply currents and input intercept (IIP3) levels to optimize system performance ...
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... Storage Temperature Range .............................-65°C to +160°C CC Lead Temperature (soldering, 10sec) .............................+300° unless otherwise noted. Typical values are at V MIN MAX CONDITIONS MAX2680 MAX2681 MAX2682 SHDN = 0.5V 0 < SHDN < +25°C, unless otherwise noted. RFIN and IFOUT matched to 50Ω CONDITIONS = 400MHz 445MHz, f ...
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... AC ELECTRICAL CHARACTERISTICS (continued) = SHDN = +3.0V, T (MAX2680/1/2 EV Kit -25dBm.) RFIN PARAMETER MAX2681 RF Frequency Range (Notes Frequency Range (Notes Frequency Range (Notes Conversion Power Gain Gain Variation Over Temperature Input Third-Order Intercept Point ...
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... SUPPLY VOLTAGE (V) 4 _______________________________________________________________________________________ = +25°C, unless otherwise noted. RFIN and IFOUT matched to 50Ω CONDITIONS = 1880MHz = 1880MHz = 1880MHz 70MHz (Note Typical Operating Characteristics = -25dBm -5dBm, T RFIN LO MAX2681 SUPPLY CURRENT vs. SUPPLY VOLTAGE 10 SHDN = +85° +25° -40° ...
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... 2450MHz 900MHz 970MHz 2 1950MHz 1880MHz 2450MHz 2210MHz 0 0 -14 -12 - POWER (dBm) MAX2681 CONVERSION POWER GAIN vs. TEMPERATURE 1950MHz 2450MHz 100 -40 - TEMPERATURE (°C) = +25°C, unless otherwise noted.) ...
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... 900MHz 970MHz 70MHz 1950MHz 2020MHz 70MHz 2 2450MHz 2210MHz 70MHz 0 -14 -12 - POWER (dBm) MAX2681 RF PORT IMPEDANCE vs. RF FREQUENCY MAX2680/1/2-20 300 0 IMAGINARY -100 250 -200 200 -300 150 100 -400 REAL -500 970MHz -5dBm LO 0 -600 ...
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... IF FREQUENCY (MHz) MAX2681 LO PORT RETURN LOSS + -10 -15 -20 -25 -30 -35 -40 200 760 1320 1880 2440 3000 FREQUENCY (MHz) MAX2681 LO-to-IF AND LO-to-RF ISOLATION 40 LO-to-IF ISOLATION LO-to-RF ISOLATION 2500 0 500 1000 1500 2000 LO FREQUENCY (MHz) = +25°C, unless otherwise noted.) A MAX2682 IF PORT IMPEDANCE vs ...
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... Active-Low Shutdown. Drive low to disable all device functions and reduce the supply current to less than SHDN 6 5µA. For normal operation, drive high or connect _______________________________________________________________________________________ Typical Operating Characteristics (continued) = -25dBm -5dBm +25°C, unless otherwise noted.) RFIN LO A MAX2681 TURN-OFF/ON CHARACTERISTICS SHDN 2V/div IFOUT 50mV/ div Z1 = 39pF 500ns/div FUNCTION . CC MAX2682 ...
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... Detailed Description The MAX2680/MAX2681/MAX2682 are 400MHz to 2.5GHz, silicon-germanium, double-balanced down- converter mixers. They are designed to provide opti- mum linearity performance for a specified supply current. They consist of a double-balanced Gilbert-cell mixer with single-ended RF, LO, and IF port connec- tions. An on-chip bias cell provides a low-power shut- down feature ...
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... Open plane (and any other plane) below the matching network components. However, avoid cutouts that are larger than necessary since they act as aperture antennas SHUTDOWN SHDN LO CONTROL C3 MAX2680 MAX2681 MAX2682 2 5 GND RFIN IFOUT ...
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Low-Noise, SiGe Downconverter Mixers ______________________________________________________________________________________ Package Information 11 ...
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Low-Noise, SiGe Downconverter Mixers 12 ______________________________________________________________________________________ NOTES ...