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AD1937:  Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec

Product Details


The AD1937 is a high performance, single-chip codec that provides four analog-to-digital converters (ADCs) with differential input and eight digital-to-analog converters (DACs) with differential output, using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. An I2C® port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1937 operates from 3.3 V digital and analog supplies. The AD1937 is available in a 64-lead (differential output) LQFP.

The AD1937 is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board PLL to derive the master clock from the LR (frame) clock or from an external crystal, the AD1937 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs and ADCs are designed using the latest Analog Devices continuous time architecture to further minimize EMI. By using 3.3 V supplies, power consumption is minimized and further reduces emissions.

Applications

  • Automotive audio systems
  • Home theater systems
  • Set-top boxes
  • Digital audio effects processors
  • Data Sheet, Rev. 0, 9/08

    FEATURES and BENEFITS

    • PLL-generated or direct master clock
    • Low EMI design
    • 112 dB DAC/ 107 dB ADC Dynamic Range and SNR
    • -96 dB THD+N
    • Single 3.3 V supply
    • Tolerance for 5 V logic inputs
    • Supports 24-bits and 8 kHz to 192 kHz sample rates
    • See Data Sheet for Additional Information

    Functional Block Diagram for AD1937

    Documentation

    Title Content Type File Type
    AD1937: Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec Data Sheet (Rev B, 06/2010) (pdf, 581 kB) Data Sheets PDF
    AN-1006: Using the EVAL-ADUSB2EBZ  (pdf, 349 kB) Application Notes PDF
    UG-040: Evaluation Guide for AD1937/AD1939  (pdf, 1528 kB) User Guides PDF
    Benchmarking Integrated Audio: Why CPU Usage Alone No Longer Predicts User Experience  (pdf, 1052 kB)
    (www.analog.com/everywhere, 2007)
    Technical Articles PDF
    ASUS P5N32-E SLI Plus: NVIDIA's 650i goes Dual x16  (pdf, 3028 kB)
    (AnandTech, 04/02/2007)
    Product Reviews PDF
    Realtek Audio Codecs Not Rendering True EAX  (pdf, 138 kB)
    (DailyTech, 09/26/2006)
    Product Reviews PDF
    Underneath Microsoft's Universal Audio Architecture  (pdf, 250 kB)
    (DailyTech, 01/30/2007)
    Product Reviews PDF
    Audio Performance  (pdf, 811 kB)
    (AnandTech, 10/20/2006)
    Product Reviews PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    AD1936/AD1937 IBIS Model  (ibs) IBIS Models IBS
    Automated Register Window Builder, Version 3.2.1  (zip, 4512 kB) Software Modules 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.

    SampleSample & Buy

    Price, packaging, availability

    AD1937 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    AD1937WBSTZ Status: Production 64 ld LQFP (10x10mm) 64 Auto Tray, 160 $8.44 $7.63 Y  Material Info PCN Purchase
    AD1937WBSTZ-RL Status: Production 64 ld LQFP (10x10mm) 64 Auto Reel, 1500 - $7.63 Y  Material Info PCN Purchase
    Price Table Help

    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.

    ADUSB2EBZ Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-ADUSB2EBZ Status: Production USB Interface $80.00 Yes -
    AD1937 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-AD1937AZ Status: Production Evaluation Board $499.00 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.

    Check Inventory & Purchase

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