Overview

Features and Benefits

  • 10 MHz to 300 MHz input frequency
  • 6.8 kHz to 270 kHz output signal bandwidth
  • 7.5 dB single sideband noise figure (SSB NF)
  • −7.0 dBm input third-order intercept (IIP3)
  • AGC free range up to −34 dBm
  • 12 dB continuous AGC range
  • 16 dB front-end attenuator
  • Baseband I/Q 16-bit (or 24-bit) serial digital output
  • LO and sampling clock synthesizers
  • Programmable decimation factor, output format, AGC, and synthesizer settings
  • 370 Ω input impedance
  • 2.7 V to 3.6 V supply voltage
  • Low current consumption: 17 mA
  • 48-lead LFCSP package

Product Details

The AD9864 is a general-purpose IF subsystem that digitizes a low level, 10 MHz to 300 MHz IF input with a signal bandwidth ranging from 6.8 kHz to 270 kHz. The signal chain of the AD9864 consists of a low noise amplifier (LNA), a mixer, a band-pass Σ-∆ analog-to-digital converter (ADC), and a decimation filter with programmable decimation factor. An automatic gain control (AGC) circuit gives the AD9864 12 dB of continuous gain adjustment. Auxiliary blocks include both clock and local oscillator (LO) synthesizers.

The high dynamic range of the AD9864 and inherent antialiasing provided by the band-pass Σ-∆ converter allow the device to cope with blocking signals up to 95 dB stronger than the desired signal. This attribute often reduces the cost of a radio by reducing IF filtering requirements. Also, it enables multimode radios of varying channel bandwidths, allowing the IF filter to be specified for the largest channel bandwidth.

The SPI port programs numerous parameters of the AD9864, allowing the device to be optimized for any given application. Programmable parameters include synthesizer divide ratios, AGC attenuation and attack/decay time, received signal strength level, decimation factor, output data format, 16 dB attenuator, and the selected bias currents.

The AD9864 is available in a 48-lead LFCSP package and operates from a single 2.7 V to 3.6 V supply. The total power consumption is typically 56 mW and a power-down mode is provided via serial interfacing.

Applications

  • Multimode narrow-band radio products
    - Analog/digital UHF/VHF FDMA receivers
    - TETRA, APCO25, GSM/EDGE
  • Portable and mobile radio products
  • SATCOM terminals

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

IBIS Models

AD9864 IBIS Models

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Discussions

AD9864 Discussions

Re: AD9864-saturation strength
11 week(s) ago in Speed ADCs
AD9864-saturation strength
11 week(s) ago in Speed ADCs
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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.


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Evaluation Boards Pricing displayed is based on 1-piece.
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.