AD1937
Info: : PRODUCTION
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AD1937

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

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Info: : PRODUCTION tooltip
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Part Details
Part Models 2
1ku List Price Starting From $5.71
Features
  • 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
Additional Details
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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

    Part Models 2
    1ku List Price Starting From $5.71

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    Documentation

    Documentation

    Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
    AD1937WBSTZ
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    AD1937WBSTZ-RL
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    Part Models

    Product Lifecycle

    PCN

    Feb 9, 2024

    - 24_0012

    Addition of Analog Devices, Ireland as an Alternate Fab Site 0.35um Process

    Dec 7, 2016

    - 16_0033

    Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

    Jan 5, 2009

    - 07_0077

    Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

    Filter by Model

    reset

    Reset Filters

    Part Models

    Product Lifecycle

    PCN

    Feb 9, 2024

    - 24_0012

    arrow down

    Addition of Analog Devices, Ireland as an Alternate Fab Site 0.35um Process

    Dec 7, 2016

    - 16_0033

    arrow down

    Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

    Jan 5, 2009

    - 07_0077

    arrow down

    Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

    Evaluation Kit

    Evaluation Kits 2

    EVAL-AD1937

    AD1937 Evaluation Board

    EVAL-ADUSB2EBZ

    ADUSB2EBZ Evaluation Board

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    EVAL-ADUSB2EBZ

    ADUSB2EBZ Evaluation Board

    ADUSB2EBZ Evaluation Board

    Features and Benefits

    EVAL-ADUSB2EBZ "USBi"
    • Digital I/O: USB input, I2C/SPI output
    • DC Supply: 5 V (USB) 

    Product Detail

    The Analog Devices USBi “USB Interface” (EVAL-ADUSB2EBZ) board is the interface between your PC's USB port and SigmaDSP hardware's data input pins. This interface can be used with any evaluation board which includes an External SPI/I²C header (Aardvark Header). The EVAL-ADUSB2EBZ board is capable of both SPI and I²C communication (which is user selectable) and can supply IOVDD of either 3.3V or 1.8V.The USBi interface is powered from the computer's USB port.

    To Install the USBi Board:

    • Connect the USB cable to the USBi Board a spare USB port on your PC.
    • The Windows “Found New Hardware Wizard” will launch.
    • Choose “Install from a list or a specific location” and click “Next”.
    • Select “Search for the best driver in these locations” and Check the box for “Include this location in the search.”
    • Press the “Browse” button and locate the appropriate driver file in the SigmaStudio application folder (default folder is C:\Program Files\Analog Devices Inc\Sigma Studio\USB drivers): Select the CyUSB.inf file.
    • Click “Continue Anyway” if you're prompted with “This software has not passed Windows Logo testing.”

    Using USBi in SigmaStudio:

    To communication between SigmaStudio and the USBi board, a communication channel block must be added to the Schematic design. To locate the block, select the Hardware Configuration Tab, in the ToolBox or Tree ToolBox window choose the “Communication Channels” category, and select the USBi block.


    USBi

    This block provides connections for multiple processors (ICs / DSPs), allowing you to use multiple processors in a single design. This block allows you to explicitly specify both the communication protocol (SPI or I²C) and the part's address, I²C address or SPI catch line. The DSP hardware's address must match the block's selected address for communication to function properly. See the parts data sheet for more information about addressing (e.g. ADR_SEL, ADDR0, or ADDR1 pins). The default USBi protocol is I²C, to enable SPI, you must first select an SPI address in the block's drop down menu and then perform three write operations (e.g. press the write button the Register Read/Write Window 3 times). The USBi hardware has LEDs which indicate the current mode, I²C or SPI.

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