Digital Picture Frame (DPF)

Digital Picture Frame (DPF) Solutions from Texas Instruments

Block Diagram

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AC/DC Supply

Reference Designs


The Digital Picture Frame (DPF) solves the problem of displaying digital photos (optional also music and videos) without a computer. While the basic function models can just show JPEG pictures in a slide show, multimedia features (zoom and rotate pictures, play music and videos, support of all popular memory cards, internal memory, auto on/off, etc.) require high-end components but staying on the low-end side on power consumption. Next generation multimedia picture frames offer the possibility to connect to the Internet and download pictures or information (weather, news, …) from a server.

The core subsystem includes:

  • Video Engine and Microprocessor – perform the processing of JPEGs and decoding of MPEGs, handle audio processing, and control the power management and user interface. While many functions can be integrated there might be a need for discrete solutions on the audio, video and interface side.
  • Audio – provides audio output for up to two channels usually decoded by the processor. So digital to analog conversion and amplification is needed.
  • Memory – stores executing code, data/parameters, and pictures, movies and sound. Switching and voltage level translation might be required for memory cards.
  • User Interface – allows the user to control the digital picture frame using buttons, remote or touch screen control.
  • Power Conversion – converts the input power from the AC/DC wall adaptor to run various functional blocks. Battery charge management can be controlled by the microprocessor.

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Application Notes (9)

Title Abstract Type Size (KB) Date Views
HTM 8 KB 20 Feb 2015 5312
HTM 9 KB 11 Nov 2009 189
HTM 8 KB 08 Aug 2008 146
HTM 8 KB 16 Jan 2008 1508
HTM 8 KB 22 Jun 2007 1017
HTM 8 KB 06 Dec 2006 678
HTM 8 KB 31 Dec 2005 1184
HTM 9 KB 18 Feb 2005 397
HTM 8 KB 30 Oct 2001 5367

Selection and Solution Guides

Selection Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 5.8 MB 10 Jun 2016 45125

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