LTC6431-20 ACELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C (Note 3). VCC = 5V, ZSOURCE = ZLOAD = 50Ω unless otherwise noted.Measurements are performed using Test Circuit A, measuring from 50Ω SMA to 50Ω without de-embedding (Note 4). SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITSSmall Signal BW –3dB Bandwidth De-embedded to Package 2000 MHz (Low Frequency Cutoff = 20MHz) S11 Input Return Loss 20MHz to 2000MHz De-embedded to Package –10 dB S21 Forward Power Gain 50MHz to 1000MHz De-embedded to Package 20.8 dB S12 Reverse Isolation 20MHz to 3000MHz De-embedded to Package –23 dB S22 Output Return Loss 20MHz to 1400MHz De-embedded to Package –10 dB Frequency = 50MHz S21 Power Gain De-embedded to Package 21.1 dB OIP3 Output Third-Order Intercept Point POUT = 2dBm/Tone, ∆f = 1MHz, A-Grade 48.2 dBm POUT = 2dBm/Tone, ∆f = 1MHz, B-Grade 47.2 dBm IM3 Third-Order Intermodulation POUT = 2dBm/Tone, ∆f = 1MHz, A-Grade –92.4 dBc POUT = 2dBm/Tone, ∆f = 1MHz, B-Grade –90.4 dBc HD2 Second Harmonic Distortion POUT = 6dBm –53.5 dBc HD3 Third Harmonic Distortion POUT = 6dBm –93.6 dBc P1dB Output 1dB Compression Point 23.5 dBm NF Noise Figure De-embedded to Package 2.6 dB Frequency = 140MHz S21 Power Gain De-embedded to Package 21.0 dB OIP3 Output Third-Order Intercept Point POUT = 2dBm/Tone, ∆f = 1MHz, A-Grade 48.8 dBm POUT = 2dBm/Tone, ∆f = 1MHz, B-Grade 47.8 dBm IM3 Third-Order Intermodulation POUT = 2dBm/Tone, ∆f = 1MHz, A-Grade –93.6 dBc POUT = 2dBm/Tone, ∆f = 1MHz, B-Grade –91.6 dBc HD2 Second Harmonic Distortion POUT = 6dBm –55.8 dBc HD3 Third Harmonic Distortion POUT = 6dBm –96.6 dBc P1dB Output 1dB Compression Point 23.0 dBm NF Noise Figure De-embedded to Package 2.7 dB Frequency = 240MHz S21 Power Gain De-embedded to Package 19.4 21.0 21.4 dB l 19.0 21.5 dB OIP3 Output Third-Order Intercept Point POUT = 2dBm/Tone, ∆f = 1MHz, A-Grade 42.2 46.2 dBm POUT = 2dBm/Tone, ∆f = 1MHz, B-Grade 45.7 dBm IM3 Third-Order Intermodulation POUT = 2dBm/Tone, ∆f = 1MHz, A-Grade –90.4 –80.4 dBc POUT = 2dBm/Tone, ∆f = 1MHz, B-Grade –87.4 dBc HD2 Second Harmonic Distortion POUT = 6dBm –50.5 dBc HD3 Third Harmonic Distortion POUT = 6dBm –92.5 dBc P1dB Output 1dB Compression Point 22.0 dBm NF Noise Figure De-embedded to Package 2.6 dB 643120f For more information www.linear.com/LTC6431-20 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information DC Electrical Characteristics AC Electrical Characteristics Typical Performance Characteristics Block Diagram Test Circuit A Operation Applications Information Demo Board S Parameters Package Description Typical Application Related Parts
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