Adafruit
TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout - Without Touch
The TFP401 breakout is a compact HDMI/DVI decoder that outputs raw 24-bit colour pixel data to 40-pin TTL displays. It decodes unencrypted video at any resol...
The TFP401 breakout is a compact HDMI/DVI decoder that outputs raw 24-bit colour pixel data to 40-pin TTL displays. It decodes unencrypted video at any resolution from 25–165 MHz pixel clock (up to 1080p) and includes a built-in backlight driver with PWM dimming control.
Designed for use with single-board computers like the Raspberry Pi or BeagleBone Black, the board can be powered entirely over USB. It ships pre-configured with an 800 × 480 EDID for auto-detection at that resolution, and the EDID can be reprogrammed for other resolutions.
Key Features
- TFP401 DVI/HDMI Decoder – Decodes unencrypted video up to 1080p (HDCP not supported)
- 40-Pin TTL Output – Drives compatible 5" and 7" displays (800 × 480 recommended)
- USB Powered – ~500 mA total draw with 5" display at full backlight
- PWM Backlight Control – Adjustable brightness via PWM input
- Pre-Programmed EDID – Ships set to 800 × 480; reprogrammable for other resolutions
- Compact Board – Small enough to fit inside enclosures
Specifications
- Decoder: TI TFP401
- Pixel Clock: 25–165 MHz
- Colour Depth: 24-bit
- Default Resolution: 800 × 480
- Power: USB (250 mA decoder + display, up to 500 mA with backlight)
Ideal For
- HDMI/DVI display projects with Raspberry Pi or BeagleBone
- Custom embedded displays and kiosks
- Decoding HDMI/DVI video for custom applications
Package Contents
- 1× TFP401 HDMI/DVI Decoder Breakout (without touch)
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- Colour depth
- Colour depth describes how many different colours a display can show. A 65K-colour display can show about 65,000 colours, which is useful for icons, graphs, and simple full-colour interfaces but is less detailed than modern phone or computer screens.
- HDMI
- HDMI is a common digital video and audio connection used by computers, media players, and many displays. If a display kit has HDMI input, it is usually much easier to test with a single-board computer because it can act like a normal monitor.
- Pixel Clock
- The pixel clock is the timing pulse that tells a display when to read each pixel’s colour data. It matters because the clock rate must match the panel’s resolution and timing requirements for the image to display correctly.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
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