ADRF6620:  700 MHz to 2700 MHz RX Mixer with Integrated IF DGA, Fractional-N PLL, and VCO

Product Details

Product Status:Recommended for New Designs

The ADRF6620 is a highly integrated active mixer and synthesizer that is ideally suited for wireless receiver subsystems. The feature rich device consists of a high linearity broadband active mixer; an integrated fractional-N PLL; low phase noise, multicore VCO; and IF DGA. In addition, the ADRF6620 integrates a 4:1 RF switch, an on-chip tunable RF balun, programmable RF attenuator, and low dropout (LDO) regulators. This highly integrated device fits within a small 7 mm × 7 mm footprint.

The high isolation 4:1 RF switch and on-chip tunable RF balun enable the ADRF6620 to support four single-ended 50 Ω terminated RF inputs. A programmable attenuator ensures optimal RF input drive to the high linearity mixer core. The integrated DSA has an attenuation range of 0 dB to 15 dB with a step size of 1 dB.

The ADRF6620 offers two alternatives for generating the differential LO input signal: externally, via a high frequency, low phase noise LO signal, or internally, via the on-chip fractional-N PLL synthesizer. The integrated synthesizer enables continuous LO coverage from 350 MHz to 2850 MHz. The PLL reference input can support a wide frequency range because the divide and multiply blocks can be used to increase or decrease the reference frequency to the desired value before it is passed to the phase frequency detector (PFD).

The integrated high linearity DGA provides an additional gain range from 3 dB to 15 dB in steps of 0.5 dB for maximum flexibility in driving an analog-to-digital converter (ADC).

The ADRF6620 is fabricated using an advanced silicon-germanium BiCMOS process. It is available in a 48-lead, RoHS-compliant, 7 mm × 7 mm LFCSP package with an exposed pad. Performance is specified over the −40°C to +85°C temperature range.


  • Wireless receivers
  • Digital predistortion (DPD) receivers


  • Integrated fractional-N phase-locked loop (PLL)
  • RF input frequency range: 700 MHz to 2700 MHz
  • Internal local oscillator (LO) frequency range: 350 MHz to 2850 MHz
  • Input P1dB: 17 dBm
  • Output IP3: 45 dBm
  • Single-pole four-throw (SP4T) RF input switch
  • Digital step attenuator (DSA) range: 0 dB to 15 dB
  • Integrated RF tunable balun allowing single-ended 50 Ω input
  • Multicore integrated voltage controlled oscillator (VCO)
  • Digitally programmable variable gain amplifier (DGA) −3 dB bandwidth: >600 MHz
  • Balanced 150 Ω IF output impedance
  • Programmable via 3-wire serial port interface (SPI)
  • Single 5 V supply

Functional Block Diagram for ADRF6620

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADRF6620 S-Parameters  (zip, 180 kB) S-Parameters ZIP
ADRF6620 Evaluation Board Software  (zip, 1707 kB) Evaluation Software ZIP

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products

Recommended ADCs for the ADRF6620
  • For 14-bit, 170 MSPS / 250 MSPS, JESD204B, dual analog to digital converter, we recommend AD9250.
  • For 14-bit, 80 MSPS / 155 MSPS, 1.8 V serial output, analog to digital converter, we recommend AD9641.
  • For 12-bit, 170 MSPS / 210 / 250 MSPS, 1.8 V LVDS output, analog to digital converter, we recommend AD9634.
  • For 12-bit, 370 MSPS / 500 MSPS, 1.8 V LVDS output, analog to digital converter, we recommend AD9434.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADRF6620 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
ADRF6620-EVALZ Status: Production Evaluation Board $200.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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