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MAX2321 Datasheet(PDF) 13 Page - Maxim Integrated Products |
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MAX2321 Datasheet(HTML) 13 Page - Maxim Integrated Products |
13 / 28 page ![]() Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs ______________________________________________________________________________________ 13 Pin Description PIN 1 1 — — 2 2 3 — 3 LNA Bias-Setting Resistor Connection. For nominal bias, connect a 20k Ω resistor to ground. The resistor value controls the LNA’s linearity in high-gain, high-linearity modes. RLNA 3 Low-Band LNA Output. Connect a pull-up inductor to VCC and an external series capacitor as part of the matching network. LNAOUTL 2 High-Band LNA Output. Connect a pull-up inductor to VCC and an external series capacitor as part of the matching network. LNAOUTH 1 4 4 — — — 4 Logic Output. Indicates mode of operation. VMODEOUT = high in FM mode. MODEOUT — — 5 5 6 7 6 Shutdown Logic Input. See Detailed Description for con- trol modes. SHDN — Low-Band RF Input. Requires a blocking capacitor and a matching network. The capacitor may be used as part of the matching network. LNAINL 5 High-Band RF Input. Requires a blocking capacitor and a matching network. The capacitor may be used as part of the matching network. LNAINH 4 — 6 — 7 — 7 Linearity-Select Logic Input. See Detailed Description for control modes. LIN 7 8 — 8 — 9 9 Low-Frequency LO Input. Used in FM mode on all parts and in cellular digital mode for MAX2320/MAX2324. LOLIN 9 Gain-Select Logic Input. See Detailed Description for control modes. GAIN 8 Band-Select Logic Input. See Detailed Description for control modes. BAND 6 10 10 — High-Frequency LO Input. For MAX2321, used in cellular digital mode and in PCS mode with the doubler active. For MAX2320/MAX2327, used in PCS mode without the doubler. For MAX2322, used with or without the doubler. For MAX2326, used in PCS mode and cellular digital mode with the divide-by-two. LOHIN 10 MAX2320 MAX2321 MAX2326 MAX2322 NAME MAX2324 MAX2327 FUNCTION — 8 — Cellular-Band Mode Select Logic Input. See Detailed Description for control modes. MODE — |
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