ADMV4420ACPZ

ADMV4420ACPZ is a highly integrated, double-balanced, active mixer with an integrated fractional-N synthesizer, ideally suited for next-generation K band satellite communications. The RF front end consists of an integrated RF balun and low noise amplifier (LNA) for an optimal, 7dB, single-sideband noise figure while minimizing external components. Additionally, the high dynamic range IF output amplifier provides a nominal conversion gain of 36dB. An integrated low-phase noise, fractional-N, phase-locked loop (PLL) with a multicore voltage-controlled oscillator (VCO) and internal 2× multiplier generates the necessary on-chip LO signal for the double-balanced mixer, eliminating the need for external frequency synthesis. The multicore VCO uses an internal autocalibration routine that allows the PLL to select the necessary settings and lock in approximately 400µs. Applications include satellite communication, point to point microwave communication.

• RF front end with integrated RF balun and LNA
• Double-balanced, active mixer with high dynamic range IF amplifier
• Fractional-N synthesizer with low phase noise, multicore VCO
• 5V supply operation with integrated LDO regulators
• RF input frequency range from 16.95GHz to 22.05GHz
• Internal LO frequency range from 16.35GHz to 21.15GHz
• IF frequency range from 900MHz to 2500MHz
• Single-ended 50 ohm input impedance and 75 ohm IF output impedance
• Programmable via 4-wire SPI, 7dB noise figure typ at (TA = 25°C)
• Operating temperature range from -40°C to +85°C, 32-lead LFCSP package

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