Datasheet LTC6412 (Analog Devices) - 10

LTC6412
TYPICAL PERFORMANCE CHARACTERISTICS Electrical Performance in Test Circuits A and B at TA = 25°C and VCC = 3.3V unless otherwise noted. 2nd Harmonic vs Distortion vs 3rd Harmonic Distortion vs Noise Figure at GMAX vs Control Voltage Over Frequency Control Voltage Over Frequency Frequency Over Temperature
–20 –20 14 POUT = 0dBm POUT = 0dBm 85°C 12 –40 –40 25°C 10 –40°C –60 –60 8 FREQ = 280MHz HD2 (dBc) 6 –80 HD3 (dBc) –80 FREQ = 70MHz FREQ = 140MHz NOISE FIGURE (dB) 4 –100 FREQ = 280MHz –100 2 FREQ = 140MHz GMAX FREQ = 70MHz GMIN GMAX GMIN –120 –120 0 0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.2 0.4 0.6 0.8 1.0 1.2 0 50 100 150 200 250 300 350 400 –VG VOLTAGE (V) –VG VOLTAGE (V) FREQUENCY (MHz) 6412 G19 6412 G20 6412 G21
2nd Harmonic Distortion vs 3rd Harmonic Distortion vs 140MHz Noise Figure vs Gain Control Voltage Over POUT Control Voltage Over POUT Setting Over Temperature
–20 –20 45 FREQ = 140MHz FREQ = 140MHz POUT = 3dBm 40 POUT = 0dBm INPUT INPUT –40 P –40 OUT = –3dBm ATTENUATOR ATTENUATOR 35 LIMITED LIMITED 30 85°C –60 –60 25°C POUT = 3dBm 25 –40°C 20 HD2 (dBc) –80 HD3 (dBc) –80 POUT = –3dBm POUT = 0dBm NOISE FIGURE (dB) 15 10 –100 –100 5 GMAX GMIN GMAX GMIN –120 –120 0 0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.2 0.4 0.6 0.8 1.0 1.2 –20 –15 –10 –5 0 5 10 15 20 –VG VOLTAGE (V) –VG VOLTAGE (V) GAIN SETTING (dB) 6412 G22 6412 G23 6412 G24
Output P1dB at GMAX vs Frequency Input and Output P1dB vs Gain 140MHz Sideband Noise Near Over Supply Voltage Setting at 140MHz GMAX at POUT = +8dBm
20 20 0 GAIN = GMAX – 2dB 18 INPUT P1dB –20 16 15 3.6V OUTPUT P1dB 14 –40 3.3V 10 12 3V –60 10 8 –80 P1dB (dBm) 5 OUTPUT P1dB (dBm) 6 –100 POWER DENSITY (dBc/Hz) 4 0 INPUT OUTPUT –120 2 ATTENUATOR AMPLIFIER LIMITED LIMITED 0 –5 –140 0 50 100 150 200 250 300 350 400 –20 –15 –10 –5 0 5 10 15 20 –20000 –10000 0 10000 20000 FREQUENCY (MHz) GAIN SETTING (dB) OFFSET FROM 140MHz (Hz) 6412 G25 6412 G26 6412 G27 6412fa 10