Analog.com Analog Dialogue Wiki 简体中文
EngineerZone
EngineerZone
  • Log In
  • Site
  • Search
  • User
  • Support

    Popular Forums

    • RF and Microwave
    • Power Management
    • Video
    • FPGA Reference Designs
    • Precision ADCs
    • Linux Software Drivers
    • SigmaDSP Processors & SigmaStudio Dev. Tool

    Product Forums

    • A2B
    • Amplifiers
    • Analog Microcontrollers
    • Clock and Timing
    • Data Converters
    • Direct Digital Synthesis (DDS)
    • Energy Monitoring and Metering
    • Interface and Isolation
    • MEMS Inertial Sensors
    • Processors and DSP
    • Switches/Multiplexers
    • Temperature Sensors
    • Voltage References
    View All

    Application Forums

    • Audio
    • Automated Test Equipment (ATE)
    • Condition-Based Monitoring
    • Depth, Perception & Ranging Technologies
    • Embedded Vision Sensing Library
    • Motor Control Hardware Platforms
    • Optical Sensing
    • Precision Technology Signal Chains Library
    • Video
    • Wireless Sensor Networks Reference Library

    Design Center Forums

    • ACE Evaluation Software
    • ADEF System Platforms
    • Design Tools and Calculators
    • FPGA Reference Designs
    • Linux Software Drivers
    • Microcontroller no-OS Drivers
    • Reference Designs
    • Signal Chain Power (SCP)
    • Software Interface Tools
    • System Demonstration Platform (SDP) Support
  • Learn

    Highlighted Webinar

    Multidimensional Simulations of Beamformers and other RF Integrated Circuits in Keysight SystemVue

    Recent Discussions

    • Issue running built programs on Pluto
    • Activity: Simple Op Amps, For ADALM1000 Fig. 1.3 Buffering example
    • ADALM-PLUTO [NETWORK] vs [USB_ETHERNET]
    • Using buffer size different from 2**n
    • ADALM1000 Pixelpulse feature Source Voltage / Measure Current explanation

    Places

    • ADI Education Home
    • ADI Education China
    • ADI Education India
    • ADI Education Philippines
    • StudentZone (Analog Dialogue)
    • Virtual Classroom

    Latest Webinars

    • Multidimensional Simulations of Beamformers and other RF Integrated Circuits in Keysight SystemVue
    • Improve Smart Building Energy Efficiency with Industrial Ethernet Controlled Air Conditioning (HVAC) Systems
    • Sustainable Motion Control Solutions for High Performance Servo Drives
    • Audio Design Solutions for Augmented and Virtual Reality (AR/VR) Glasses
    • Robust Industrial Motor Encoder Signal Chain Solutions
    View All Webinars
  • Community Hub

    Challenge Yourself!

      KCC's Quizzes: AQQ 236 about strange marking on airplane engines
    View All

    Places

    • Community Help
    • Logic Lounge

    Resources

    • EZ Code of Conduct
    • Getting Started Guide
    • ADI: Words Matter
    • Community Help Videos
    View All
  • Blogs

    Highlighted Blogs

    Crawl, Walk, And Run - The Journey To Create The Phaser

     

    Hardware Holds The Key To Making Industrial Systems IEC 62443 Compliant

    Latest Blogs

    • Behind the Scenes of DIYRadio Blogs: An Introduction
    • Empowering Surveillance Cameras To Capture A Scene Without Being Heard
    • Mastering The Metrics Makes Specifying Encoders Simpler
    • Understanding Secret Key Cryptography Without Formulas
    • 3 Reasons Why IO-Link is Changing Smart Factory Decision Making
    Read All Blogs

    ADI Blogs

    • EZ Spotlight
    • The Engineering Mind
  • Partners

    Electronic Design Services - PartnerZone

    • Boston Engineering
    • Calian, Advanced Technologies
    • Colorado Engineering Inc. (DBA CAES AT&E)
    • Clockworks Signal Processing
    • Epiq Solutions
    • Fidus
    • PalmSens
    • Richardson RFPD
    • Tri-Star Design, Inc.
    • VadaTech
    • Vanteon
    • X-Microwave
    View All
Other Products
Other Products
Documents ADMP401 startup
  • Forums
  • FAQs/ Docs
  • Members
  • Tags
  • More
  • Cancel
  • +Documents
  • +AD10200: FAQ
  • +AD8436: FAQ
  • 3B01: the connection between the 26-pin and 16 channel.
  • 442 - I cannot find the datasheet for the 442 (old OPAMP Module)
  • 751: old datasheet
  • Ac coupling Vs Dc coupling
  • AC1307E Power Supply input range
  • AD-MSDPD-EVB: Eval Board Datasheet
  • ADATE304 Force Voltage
  • ADATE318: What supply voltage do I use for VDD_THERM?
  • ADMP401 startup
  • ADMP441 output format
  • ADN2531: Can output be configured as current source?
  • ADN2685: could you send the final datasheet?
  • +ADN2814: FAQ
  • +ADN2816: FAQ
  • ADN2817 error correction
  • ADN2820: Optical fiber communication
  • ADN2830 MPD current
  • +ADN2830: FAQ
  • ADN2871: Differential drive circuit for driving a VCSEL Laser diode.
  • ADN2872: Is it possible to use 2 laser drivers in parallel to have the modulation current of 130 mA?   
  • ADN2873: Minimum differential signal between the DATAP and DATAN
  • ADN2880: MAX leakage current specification of ADN2880 input
  • ADN2882 Evaluation Board
  • ADN2890/1/2 at 100Mbps?
  • +ADN4600: FAQ
  • +ADN469xE: FAQ
  • +ADN8831: FAQ
  • ADN8834: Evaluation board difference
  • AN-695 Q&A
  • Aqueous washing of ADI parts?
  • availability of the ADMC300 devices
  • Baking BGA in Tray or trays
  • Baking of parts in a Reel
  • Can ADN4604 do single ended 75Ohm input and output?
  • Can I connect one input to multiple outputs?
  • datasheet 2B35
  • datasheet 940, 941, 942, 943, 944, 945
  • datasheet error
  • Digital programmable power with 1.8V logic to Vout = 5V
  • Does changing the crosspoint connectivity affect the state of previously configured connections?
  • doubling ADN8810 Iout configuration query (SR#: 1202803)
  • EVAL-AD8436 evaluation board operation with single supply
  • EVAL-ADN2882-EXT
  • Evaluation Boards for the ADN2531
  • Failure probability for AD8468
  • How can I order Linear Circuit Design Handbook?
  • Maximum Recommended PMU Load Capacitance
  • Modell 310J
  • MTBF-reliability data
  • Package general: What is the pin pitch of LFCSP package?
  • Package: 10 ld Ceramic Flat Package footprints
  • paste mask recommendation
  • PFC controller + LED driver in one package
  • Replacement for PMI119-883
  • RoHS compliant status E
  • RTI-850 RTI products
  • Shelf life for Analog parts
  • Shelf life of drypack used to ship Moisture/Reflow Sensitive Surface Mount Devices
  • Support for Mobile TV tuner parts: ADMTVxxx / IDTxxxx
  • The unit of MTTF data on ADI web site
  • transistor counts for a processor to calculate the MTBF
  • unused inputs or outputs?
  • What data rates or range of data rates are supported?
  • What data rates protocols are supported?
  • Where can I find e-book versions on your seminar books to download?
  • Where can I find the user guide for the ADN2871/ADN2873 evaluation boards?
  • which register we can read to know the status of HD
  • Why the Analog Input Current from ?10mA to 10 mA was limited.
  • ADG324x Level Translation: high to low

ADMP401 startup

Q 

One of our customer, RADE, is using the ADMP401. They are watching a delay of
30 ms., between the power on of the system and the signal presence in the
output. You can see the picture attached.

In the datasheet there isn´t any information about this point, and they need to
know if this is the typical behavior, and if this could be reduced.

 

A 

Yes, this is normal behavior. After power is applied to the microphone, the
internal charge pump that generates the bias voltage has some start up time
that occurs before the microphone will output a signal. This is what your
customer is seeing. I hope that this isn’t an issue for their system design.
For most customers, this short start-up time is not an issue.
Attachments:
  • admp401
  • Share
  • History
  • More
  • Cancel
Related
Recommended
Social
Quick Links
  • About ADI
  • ADI Signals+
  • Analog Dialogue
  • Careers
  • Contact us
  • Investor Relations
  • News Room
  • Quality & Reliability
  • Sales & Distribution
  • Incubators
Languages
  • English
  • 简体中文
  • 日本語
Newsletter

Interested in the latest news and articles about ADI products, design tools, training and events? Subscribe today!

Sign Up
Analog Logo
©1995 - 2023 Analog Devices, Inc. All Rights Reserved
沪ICP备09046653号-1
  • Sitemap
  • Legal
  • Privacy & Security
  • Privacy Settings
EngineerZone Uses cookies to ensure you get the best experience in our community. For more information on cookies, please read our Privacy & Security Statement.