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MAX2667EWT+T Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX2667EWT+T Datasheet(HTML) 6 Page - Maxim Integrated Products |
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6 / 8 page  GPS/GNSS Ultra-Low-Noise-Figure LNAs 6 Table 1. MAX2667 Typical Device S-Parameter Values and K-Factor Table 2. MAX2669 Typical Device S-Parameter Values and K-Factor Shutdown The devices include a shutdown feature to turn off the entire chip. Apply a logic-high to the SHDN pin to place the part in the active mode, and a logic-low to place the part in the shutdown mode. Applications Information A properly designed PCB is essential to any RF micro- wave circuit. Use controlled-impedance lines on all high-frequency inputs and outputs. Bypass VCC with decoupling capacitors located close to the device. For long VCC lines, it may be necessary to add decoupling capacitors. Locate these additional capacitors further away from the device package. Proper grounding of the GND_ pins is essential. If the PCB uses a topside RF ground, connect it directly to the GND_ pins. For a board where the ground is not on the component layer, connect the GND_ pins to the board with multiple vias close to the package. FREQ. (MHz) S11 MAG (dB) S11 PHASE (Degrees) S21 MAG (dB) S21 PHASE (Degrees) S12 MAG (dB) S12 PHASE (Degrees) S22 MAG (dB) S22 PHASE (Degrees) Kf 1000 -2.0 -47.7 6.0 -100.0 -47.5 -148.0 -1.0 -55.0 5.1 1100 -2.1 -48.6 7.4 -100.6 -45.7 -150.0 -1.0 -58.1 3.8 1200 -2.2 -51.6 9.6 -107.3 -42.9 -153.5 -1.4 -65.4 3.1 1300 -2.4 -55.0 12.0 -117.2 -39.6 -160.2 -2.1 -74.1 2.5 1400 -2.7 -58.6 14.0 -129.5 -37.0 -168.5 -3.6 -85.5 2.3 1500 -6.5 -61.9 16.2 -146.5 -34.1 178.5 -7.4 -100.0 2.8 1575 -4.3 -62.3 17.1 -164.2 -32.9 162.8 -15.3 -100.8 2.1 1600 -4.6 -61.6 17.3 -170.6 -32.8 156.6 -20.6 -78.9 2.0 1700 -5.4 -55.3 17.1 165.5 -32.5 136.5 -9.5 10.0 1.8 1800 -5.2 -49.8 15.7 145.8 -33.8 121.6 -4.5 -2.4 1.6 1900 -4.8 -47.3 13.9 135.2 -35.2 113.8 -2.7 -13.2 1.6 2000 -4.5 -46.7 12.7 127.3 -36.7 109.6 -1.8 -21.2 1.5 FREQ. (MHz) S11 MAG (dB) S11 PHASE (Degrees) S21 MAG (dB) S21 PHASE (Degrees) S12 MAG (dB) S12 PHASE (Degrees) S22 MAG (dB) S22 PHASE (Degrees) Kf 1000 -3.0 -57.0 10.8 -120.0 -43.0 -154.0 -1.3 -65.0 3.2 1100 -3.3 -58.2 11.6 -124.5 -42.1 -155.0 -1.6 -70.2 3.3 1200 -3.5 -60.0 13.4 -134.6 -39.3 -160.5 -2.4 -79.6 2.8 1300 -3.8 -62.3 14.9 -148.0 -37.2 -168.3 -4.0 -90.0 2.7 1400 -4.3 -63.3 15.9 -162.3 -35.4 -178.2 -7.3 -101.0 2.7 1500 -4.9 -62.0 16.6 -178.9 -33.9 171.0 -14.5 -100.6 2.6 1575 -5.3 -59.7 16.6 168.0 -33.5 161.7 -19.6 -26.0 2.5 1600 -5.4 -58.5 16.5 163.9 -33.6 157.5 -16.7 -6.0 2.5 1700 -5.5 -53.7 15.8 149.3 -33.6 148.3 -9.0 3.6 2.3 1800 -5.3 -50.3 14.7 136.8 -34.2 142.5 -5.7 -2.8 2.2 1900 -5.1 -48.0 13.4 130.0 -35.1 139.6 -4.0 -9.6 2.3 2000 -4.9 -46.3 12.7 123.9 -35.8 138.6 -3.0 -15.0 2.1 |
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