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MAX2160EBG Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX2160EBG Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 25 page ISDB-T Single-Segment Low-IF Tuners _______________________________________________________________________________________ 9 Pin Description PIN BUMP NO. TQFN WLP NAME DESCRIPTION 1, 11, 15, 21, 24, 28, 30, 31 29, 33, 34, 35, 36, 45, 46 N.C. No Connection. Connect to the PC board ground plane. 2 2 TCXO High-Impedance Buffer for External TCXO. When ENTCXO is pulled high, this input is enabled for use with an external TCXO and the internal crystal oscillator is disabled. Requires a DC-blocking capacitor. 3 11 XTAL Crystal-Oscillator Interface. When ENTCXO is pulled low, this input is enabled for use with an external parallel resonance mode crystal. See the Typical Operating Circuit. 4 — GNDXTAL Crystal-Oscillator Circuit Ground. Connect to the PC board ground plane. 5 12 VCCXTAL DC Power Supply for Crystal-Oscillator Circuits. Connect to a +2.85V low-noise supply. Bypass to GND with a 100pF capacitor connected as close to the pin as possible. Do not share capacitor ground vias with other ground connections. 6 4 XTALOUT Crystal Oscillator Buffer Output. A DC-blocking capacitor must be used when driving external circuitry. 7 5 VCCDIG DC Power Supply for Digital Logic Circuits. Connect to a +2.85V low-noise supply. Bypass to GND with a 100pF capacitor connected as close to the pin as possible. Do not share capacitor ground vias with other ground connections. 8 14 SDA 2-Wire Serial Data Interface. Requires a pullup resistor to VCC. 9 7 SCL 2-Wire Serial Clock Interface. Requires a pullup resistor to VCC. 10 19 LTC PLL Lock Time Constant. LTC sources current to an external charging capacitor to set the time constant for the VCO autoselect (VAS) function. See the Loop Time Constant Pin section in the Applications Information. 12 9 VCCBIAS DC Power Supply for Bias Circuits. Connect to a +2.85V low-noise supply. Bypass to GND with a 100pF capacitor connected as close to the pin as possible. Do not share capacitor ground vias with other ground connections. 13 17 RFIN Wideband 50 Ω RF Input. Connect to an RF source through a DC-blocking capacitor. 14 22 SHDN Device Shutdown. Logic-low turns off the entire device including the 2-wire compatible bus. SHDN overrides all software shutdown modes. 16 24 VCCLNA DC Power Supply for LNA. Connect to a +2.85V low-noise supply. Bypass to GND with a 100pF capacitor connected as close to the pin as possible. Do not share capacitor ground vias with other ground connections. 17 25 GC1 RF Gain-Control Input. High-impedance analog input, with a 0.3V to 2.7V operating range. VGC1 = 0.3V corresponds to the maximum gain setting. 18 28 VCCMX DC Power Supply for RF Mixer Circuits. Connect to a +2.85V low-noise supply. Bypass to GND with a 100pF capacitor connected as close to the pin as possible. Do not share capacitor ground vias with other ground connections. 19 38 PWRDET Power-Detector Output. See the IF Power Detector section in the Applications Information. |
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