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MAX3571CGM Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX3571CGM Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 17 page HI-IF Single-Chip Broadband Tuners _______________________________________________________________________________________ 9 PIN NAME FUNCTION 27 VCC 2nd Charge-Pump Supply Voltage. Bypass with a capacitor as close to the pin as possible. Do not share the bypass capacitor ground vias with any other branches. 29 LOCFLT2 2nd LO Noise-Filtering Capacitor Connector. Connect a capacitor to GND. (Refer to the EV kit.) 30 TUNE2 2nd VCO Tuning Input. Connect this analog voltage input to a third-order loop-filter output. 31 VCC 2nd VCO Circuitry Supply Voltage. Bypass with a capacitor as close to the pin as possible. Do not share the bypass capacitor ground vias with any other branches. 33 VCC 2nd LO Generation Supply Voltage. Bypass with a capacitor as close to the pin as possible. Do not share the bypass capacitor ground vias with any other branches. 35, 36 IFOUT1+, IFOUT1- 1st Differential IF Outputs. These outputs are AC-coupled to the SAW filter inputs. 37 VCC 2nd Mixer and 1st IF Amplifier Circuit Supply Voltage. Bypass with a capacitor as close to the pin as possible. Do not share the bypass capacitor ground vias with any other branches. 38, 39 IFIN+, IFIN- Differential IF Inputs. Connected to the SAW filter outputs. 40 IFVGA IF VGA Control. See the Typical Operating Characteristics. 41 VCC IF VGA Supply Voltage. Bypass with a capacitor as close to the pin as possible. Do not share the bypass capacitor ground vias with any other branches. 42, 43 IFOUT2+, IFOUT2- IF VGA Outputs 44 VCC HI-IF Filter Circuit Supply Voltage. Bypass with a capacitor as close to the pin as possible. Do not share the bypass capacitor ground vias with any other branches. 46 BIAS Bias Resistor Connection. Connect a 5.9k Ω precision ±1% resistor to GND. Resistor value can be increased to decrease the nominal current at the expense of linearity. Refer to Application Note: MAX3570/MAX3571/MAX3573 Bias Resistor Setting for further information. 47 RFVGA RF VGA Control. See the Typical Operating Characteristics. 48 LNABIAS LNA Bias Input. Connect through an inductor to GND. (Refer to the EV kit.) EP GND Exposed Ground Paddle. DC and AC GND return for the IC. Connect to PC board ground plane using multiple vias. Pin Description (continued) |
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