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AD1974:  4 ADC with PLL, 192 kHz, 24-Bit ADC

Product Details


The AD1974 is a high performance, single-chip ADC that provides four analog-to-digital converters (ADCs) with differential inputs using the Analog Devices, Inc. patented multibit sigma-delta (Σ-Δ) architecture. An SPI port is included, allowing a microcontroller to enable mutes and adjust many other parameters. The AD1974 operates from 3.3 V digital and analog supplies. The AD1974 is available in a single-ended output 48-lead LQFP.

The AD1974 is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board phase-locked loop (PLL) to derive the master clock from the LR clock or from an external crystal, the AD1974 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The ADCs are designed using the latest continuous time architectures from Analog Devices to further minimize EMI. By using 3.3 V supplies, power consumption is minimized, further reducing emissions.

Applications

  • Automotive audio systems
  • Home Theater Systems
  • Set-top boxes
  • Digital audio effects processors
  • FEATURES and BENEFITS

    • Phase-locked loop generated or direct master clock
    • Low EMI design
    • 107 dB dynamic range and SNR
    • −94 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
    • Differential ADC input
    • SPI®-controllable for flexibility
    • Software-controllable clickless mute
    • Software power-down
    • See data sheet for additional features

    Functional Block Diagram for AD1974

    Documentation

    Title Content Type File Type
    AD1974: 4 ADC with PLL, 192 kHz, 24-Bit ADC Data Sheet (Rev D, 03/2013) (pdf, 1135 kB) Data Sheets PDF
    AN-1006: Using the EVAL-ADUSB2EBZ  (pdf, 349 kB) Application Notes PDF
    UG-046: Evaluating the AD1974 Four ADC with PLL 192 kHz, 24-Bit Codec  (pdf, 3360 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
    Underneath Microsoft's Universal Audio Architecture -- Daily Tech, January 30, 2007 Product Reviews HTML
    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
    AD1938 IBIS Model  (ibs)
    Covers the AD1928, AD1933/34/38/39, AD1974 and the ADAU1328.
    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

    AD1974 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    AD1974WBSTZ Status: Production 48 ld LQFP 48 Auto Tray, 250 - - Y  Material Info Notify Me Purchase Sample
    AD1974WBSTZ-RL Status: Production 48 ld LQFP 48 Auto Reel, 2000 - - Y  Material Info Notify Me Purchase
    AD1974YSTZ Status: Production 48 ld LQFP 48 Ind Tray, 250 $4.43 $4.01 Y  Material Info PCN Purchase Sample
    AD1974YSTZ-RL Status: Production 48 ld LQFP 48 Ind Reel, 2000 - $4.01 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 -
    AD1974 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-AD1974AZ 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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