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MAX2321 Datasheet(PDF) 14 Page - Maxim Integrated Products |
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MAX2321 Datasheet(HTML) 14 Page - Maxim Integrated Products |
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14 / 28 page  Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs 14 ______________________________________________________________________________________ PIN Pin Description (continued) MAX2320 MAX2321 MAX2326 MAX2322 NAME FUNCTION MAX2324 MAX2327 11 11 — High-Frequency LO Buffer Output. Open-collec- tor output requires pull-up inductor or pull-up resistor of 100 Ω or less. Reactive match to the load delivers maximum power. LOHOUT 11 — 12 12 — 13 13 FM Mixer Output. Requires a pull-up inductor to VCC and a series capacitor as part of the match- ing network. FMOUT 13 Low-Frequency LO Buffer Output. Open-collec- tor output requires pull-up inductor or pull-up resistor of 100 Ω or less. Reactive match to the load delivers maximum power. LOLOUT 12 13 — — 14 14 14 Power Supply. Bypass with a 1000pF capacitor as close to the pin as possible. VCC 14 15 15 15 16, 17 — 16, 17 CDMA Mixer Differential Outputs. Require pull- up inductors and series capacitors as part of the matching network. CDMA-, CDMA+ 16, 17 LO Output Buffer Enable. The LO buffers are controlled separately from the rest of the IC. Drive BUFFEN high to power up the LO output buffer associated with the selected LO input port. BUFFEN 15 LO Doubler Logic Input. Drive LOX2 high to enable the LO doubler. LOX2 — 18 18 18 — 19 19 Low-Band Mixer Input. Requires a blocking capacitor and a matching network. The capaci- tor may be used as part of the matching net- work. MIXINL 19 20 20 — 2, 5, 9, 12, 19 3 1, 10, 11, 20 No Connection. Do not make any connection to these pins. N.C. — High-Band Mixer Input. Requires a blocking capacitor and a matching network. The capaci- tor may be used as part of the matching net- work. MIXINH 20 Bias-Setting Resistor Connection. For nominal bias, connect 20k Ω resistor to ground. The resis- tor value controls the digital LNA’s linearity in low-gain, digital, or FM mode, and controls the mixers in all modes. RBIAS 18 Slug Slug Slug Ground Reference for RF, DC, and Logic Inputs. Solder the slug evenly to the board ground plane. GND Slug — 16, 17 — Mixer Differential Outputs. Require pull-up inductors and series capacitors as part of the matching network. IFOUT+, IFOUT- — PIN |
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Similar Description - MAX2321 |
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