ADRF6821ACPZ

ADRF6821 is a highly integrated, dual radio frequency (RF) input, zero intermediate frequency (IF)/low IF RFIC receiver with a quadrature demodulator, digital step attenuator (DSA), IF linear amplifiers, an integrated, fractional-N phase-locked loop (PLL), and a low phase noise, multicore, voltage controlled oscillator (VCO). The RFIC is ideally suited for communication digital predistortion (DPD) systems. The high isolation 2:1RF switch and on-chip wideband RF balun enable the device to support two single-ended, 50 ohm terminated RF inputs. A programmable attenuator ensures an optimal differential RF input level to the high linearity demodulator core. The integrated attenuator offers an attenuation range of 15dB with a step size of 1dB. It is used in application like cellular W CDMA/GSM/LTE, DPD receivers, microwave, point to point radios etc.

• DPD receiver with integrated fractional-N PLL
• RF input frequency range is 450MHz to 2800MHz
• Internal LO input frequency range is 450MHz to 2800MHz
• Dual RF inputs with SPDT absorptive RF switches
• Integrated VCO to cover complete RF input range
• Digital programmable LO phase offset and dc nulling
• Programmable via 4-wire SPI
• Operating temperature is -40°C to +105°C
• Package style is 56-lead lead frame chip scale [LFCSP]

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party