RF2418 RF Micro Devices, RF2418 Datasheet
RF2418
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RF2418 Summary of contents
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... UHF Digital and Analog Receivers • Digital Communication Systems • Spread-Spectrum Communication Systems Product Description The RF2418 is a monolithic integrated UHF receiver front-end. The IC contains all of the required components to implement the RF functions of the receiver except for the passive filtering and LO generation. It contains an ...
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... RF2418 Absolute Maximum Ratings Parameter Supply Voltage Input LO and RF Levels Ambient Operating Temperature Storage Temperature Parameter Overall RF Frequency Range Cascade Power Gain Cascade IP 3 Cascade Noise Figure First Section (LNA) Noise Figure Input VSWR Input IP3 Gain Reverse Isolation 8 Output VSWR ...
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... The trace length between the pin and the capacitor should be minimized. The ground side of the bypass capacitor should connect immediately to ground plane. Rev A6 010717 Interface Schematic and pin 6 must have a bias resistor DD through a resistor or inductor in DD RF2418 LNA IN 8 IF2 OUT IF1 OUT LO IN 8-37 ...
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... RF2418 Pin Function Description 10 GND Same as pin Mixer RF Input port. For a 50 inductor. This pin is NOT internally DC-blocked. An external blocking capacitor must be provided if the pin is connected to a device with DC present path to ground (i.e. an inductor or resistor to ground) is, however, acceptable at this pin blocking capacitor is required, a value of 22pF is recommended.To minimize the mixer’ ...
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... At lower IF frequencies, where the internal 10 pF capacitor does not roll off the conversion gain, L1 may be eliminated blocking capacitor, in case the IF filter's input is not an open circuit at DC. RF2418 Image Filter, 50 15nH ...
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... RF2418 strip J1 LNA IN 5.11 k P1-3 Jumper see note R3 610 J2 IF OUT C1 0 8-40 Evaluat ion Board Schemat ic RF=850MHz, IF=71MHz (Download Bill of Materials from www.rfmd.com.) L3 LNA AMP 10pF BUFFER MIXER 7 8 TP1 R1 see note ...
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... Evaluat ion Board Layout Board Size 1.52” x 1.52” Board Thickness 0.031”, Board Material FR-4 Rev A6 010717 RF2418 8 8-41 ...
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... RF2418 High Impedance Mixer Gain versus Voltage, RF=850MHz 10.0 9.5 9.0 8.5 8.0 7.5 7.0 3.0 3.5 4.0 4.5 Voltage (V) High Impedance Mixer Input IP3 versus Voltage, RF=850MHz 4 3.0 2.5 2.0 1.5 1.0 0.5 3.0 3.5 4.0 4.5 Voltage (V) Buffered LNA Gain versus Voltage, RF=850MHz 17.0 16.0 15.0 14.0 13.0 12.0 11.0 10.0 9.0 8.0 7.0 3.0 3.5 4.0 4.5 Voltage (V) 8-42 26.0 24.0 22.0 20.0 18.0 T =-40 16 14.0 5.0 5.5 6.0 6.5 3.0 High Impedance Casc. Input IP3 versus Voltage, -10.0 -10.5 -11.0 -11.5 -12.0 -12.5 -13.0 -13.5 -14.0 -14.5 -15.0 5.0 5.5 6.0 6.5 3.0 15.0 14.0 13.0 12.0 11.0 10.0 9.0 8.0 T =-40 7 6.0 T =85 5 ...
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... Buffered LNA Input versus Voltage, 6.0 T =-40 4 =85 2.0 0.0 -2.0 -4.0 -6.0 -8.0 -10.0 5.5 6.0 6.5 3.0 3.5 Buffered Casc. Input IP3 versus Voltage, -10.0 T =-40 -11 -12.0 -13.0 -14.0 -15.0 -16.0 5.5 6.0 6.5 3.0 3.5 Buffered Mixer Noise Figure versus Voltage, RF=850MHz Part to Part Variation 11.0 Part 1 Part 1 Part 2 Part 2 Part 3 Part 3 10.5 Part 4 Part 4 Part 5 Part 5 10.0 9.5 9.0 5.5 6.0 6.5 3.0 3.5 RF2418 RF=850MHz 4.0 4.5 5.0 5.5 6.0 6.5 Voltage (V) RF=850MHz 4.0 4.5 5.0 5.5 6.0 6.5 Voltage (V) 4.0 4.5 5.0 5.5 6.0 6.5 Voltage (V) 8-43 8 ...
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... RF2418 8 8-44 Rev A6 010717 ...