Alternative Parts


Features and Benefits

  • General
    Low-power HDMI™/DVI transmitter ideal for portable applications
    CEC controller and buffer reduces system overhead
    Compatible with HDMI v1.3
    (supporting x.v.Color), DVI v1.0
    Single 1.8V power supply
  • Digital video
    80 MHz operation supports all video resolutions from 480i to 1080i
    Prog two-way CSC
    Supports RGB, YCbCr, DDR
    Supports ITU656 based embedded syncs
    Auto input video format timing detection
  • Digital audio
    Supports standard S/PDIF for stereo LPCM or compressed audio up to 192 kHz
    2-channel uncompressed LPCM I2S audio up to 192 kHz
  • Special features for easy system design
    On-chip MPU w/ I2C® master performs EDID reading operations
    5 V tolerant I2C & HPD I/Os-no extra device needed
    No audio master clock needed to support S/PDIF & I2S

Product Details

The ADV7521NK is an 80 MHz, high definition multimedia interface (HDMI®) v.1.3 transmitter. It supports HDTV formats up to 1080i and 720p, and computer graphic resolutions up to XGA (1024 × 768 @ 75 Hz).

The ADV7521NK supports both S/PDIF and 2-channel I2S audio. Its high fidelity 2-channel I2S can transmit stereo at up to 192 kHz sampling rate. The S/PDIF can carry stereo LPCM audio or compressed audio including Dolby® Digital and DTS®.

The ADV7521NK helps to reduce system design complexity and cost by incorporating such features as an I2C master for EDID reading, a single 1.8V power supply and 5 V tolerance on I2C and hot plug detect pins.

Fabricated in an advanced CMOS process, the ADV7521NK is available in a space saving, 49-ball, WLCSP surface-mount package. This package is RoHS compliant and specified to operate from −25°C to +85°C.


  • Digital video cameras
  • Digital still cameras
  • Personal media players
  • Cellular handsets

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Sample & Buy

See our Ordering FAQs for answers to questions about online orders, payment options and more.


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.

Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact with any questions regarding this Sample Site.

Price Table Help


Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through To order more than two, please purchase through one of our listed distributors.

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.