AD1938
Info: : PRODUCTION
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AD1938

4 ADC/8 DAC with PLL, 192 kHz, 24-Bit CODEC

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 3
1ku List Price Starting From $6.03
Features
  • PLL generated or direct master clock
  • Low EMI design
  • 108 dB DAC/107 dB ADC dynamic range and SNR
  • −94 dB THD + N
  • Log volume control with autoramp function
  • 3.3 V single supply
  • Tolerance for 5 V logic inputs
  • Supports 24 bits and 8 kHz to 192 kHz sample rates
  • Please see data sheet for additional features
Additional Details
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The AD1938 is a high performance, single-chip codec that provides four analog-to-digital converters (ADCs) with input and eight digital-to-analog converters (DACs) with single-ended output using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters.

The AD1938 operates from 3.3 V digital and analog supplies. The AD1938 is available in a 48-lead (single-ended output) LQFP package. Other members of this family include a differential DAC output and I2C® control port version.

The AD1938 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 clock or from an external crystal, the AD1938 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 architectures 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
Part Models 3
1ku List Price Starting From $6.03

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD1938WBSTZ
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AD1938WBSTZ-RL
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AD1938YSTZRL
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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 21, 2020

- 20_0188

Addition of Polyimide for AD1938

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 21, 2020

- 20_0188

arrow down

Addition of Polyimide for AD1938

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
Evaluation Kit

Evaluation Kits 2

EVAL-AD1938

AD1938 Evaluation Board

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EVAL-AD1938

AD1938 Evaluation Board

AD1938 Evaluation Board

Product Detail

This page contains evaluation board documentation and ordering information for evaluating the AD1938.

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.

Tools & Simulations

Tools & Simulations 1

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