Overview

Features and Benefits

  • Automatically Senses Sample Frequencies
  • No Programming Required
  • Attenuates Sample Clock Jitter
  • 3.3 V to 5 V Input and 3.3 V Core Supply Voltages
  • Accepts 16-/18-/20-/24-Bit Data
  • Up to 192 kHz Sample Rate
  • Input/Output Sample Ratios from 7.75:1 to 1:8
  • Bypass Mode
  • Multiple AD1895 TDM Daisy-Chain Mode
  • 128 dB Signal-to-Noise and Dynamic Range
    (A-Weighted, 20 Hz to 20 kHz BW)
  • Up to –122 dB THD + N
  • Please see data sheet for additional features

Product Details

The AD1895 is a 24-bit, high-performance, single-chip, second-generation asynchronous sample rate converter. Based upon Analog Devices experience with its first family of asynchronous sample rate converters (the AD1890 to AD1893), the AD1895 offers improved performance and additional features.

This improved performance includes a minimum THD+N of -115 dB for all input frequencies and sample rates, 128 dB dynamic range, 192 kHz sampling frequencies for both input and output sample rates, improved jitter rejection and 1:8 up-sampling and 7.75:1 down-sampling ratios. Additional features include a TDM mode to cascade multiple AD1895, more serial formats for better interfacing to digital signal processors and a bypass mode.

Applications

  • Home Theater
  • Automotive Audio Systems
  • DVD
  • DVD-R
  • CD-R
  • Set-Top Boxes
  • Digital Audio Effects Processors

Please see the AD1896, our highest end sample rate converter with even more performance and additional features like matched phase mode.

Please see: "Why do I need a 140 dB DNR".

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.

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

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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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