Analog Devices Inc. AD9084 Apollo MxFE® Quad Mixed Signal Front-Ends

Analog Devices AD9084 Apollo MxFE® Quad Mixed Signal Front-Ends are highly integrated devices featuring a 16-bit, 28GSPS maximum sample rate, RF digital-to-analog converter (DAC) core, and 12-bit, 20GSPS maximum sample rate, RF analog-to-digital converter (ADC) core. The Analog Devices AD9084 supports four transmitter channels and four receiver channels. These devices are well suited for applications requiring both wideband ADCs and DACs to process signal(s) having wide instantaneous bandwidth. AD9084 features a 48-lane, 28.21Gbps JESD204C or 20Gbps JESD204B data transceiver port, an on-chip clock multiplier, and digital signal processing (DSP) capability, targeting either wideband or multiband, direct-to-RF applications. The AD9084 also features a bypass mode that allows the full bandwidth capability of the ADC/DAC cores to bypass the DSP datapaths. These components also feature low-latency loopback and frequency-hopping modes targeted at phased array radar systems and electronic warfare applications.

Features

  • Reconfigurable mixed-signal platform design
  • 4x 16-bit RF DACs and 4x 12-bit RF ADCs (4T4R)
  • Usable RF analog bandwidth to 18GHz
  • Fast detect with low latency for fast AGC control
  • Spectrum sniffer and monitor
  • Signal monitor for slow AGC control
  • Multiple loopback (ADC to DAC)
  • Power amplifier downstream protection circuitry
  • Maximum DAC/ADC sample rate up to 28GSPS/20GSPS
  • Versatile digital features
  • 10GHz maximum instantaneous bandwidth per channel (2T2R)
  • Programmable FIR filters at full ADC and DAC sample rates
  • Configurable fine and coarse DDCs and DUCs
  • Fast frequency hopping with profiles
  • Dynamic configuration through SPI, HSCI, or GPIO
  • Programmable fractional data rate resampler from 1x to 2x
  • JESD204B (20Gbps) and JESD204C (28.21Gbps)
  • On-chip temperature monitoring unit
  • 24mm × 26mm, 899-ball BGA package with 0.8mm pitch
  • Operating junction temperature ranges
    • -40°C to +110°C functional (transient)
    • -10°C to +110°C performance (static)

Applications

  • Radar and phase array systems
  • Seeker front-ends
  • Tactical defense radio infrastructures
  • Electronic warfare and signal intelligence
  • Wireless communications infrastructures
  • Wireless communications tests (5G mmWave, 5G C band, and backhaul)

4T4R Differential ADC (SW1, SW3) Functional Block Diagram

Block Diagram - Analog Devices Inc. AD9084 Apollo MxFE® Quad Mixed Signal Front-Ends

4T4R Differential ADC (SW5) Functional Block Diagram

Block Diagram - Analog Devices Inc. AD9084 Apollo MxFE® Quad Mixed Signal Front-Ends
Published: 2025-07-08 | Updated: 2025-07-18