Description
Adafruit TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout – With Touch
It’s a mini HDMI decoder board! So small and simple, you can use this board as an all-in-one display driver for TTL displays, or perhaps decoding HDMI/DVI video for some other project. This breakout features the TFP401 for decoding video, and for the touch version, an AR1100 USB resistive touch screen driver.
The TFP401 is a beefy DVI/HDMI decoder from TI. It can take unencrypted video and pipe out the raw 24-bit color pixel data – HDCP not supported! It will decode any resolution from 25-165MHz pixel clock, basically up to 1080p. We’ve used this breakout with 800×480 displays, so we have not specifically tested it with higher resolutions. We added a bunch of supporting circuitry like a backlight driver and configured it for running basic TTL display panels such as the ones we have in the shop
You can even power the display and decoder from a USB port. For example, with a 5″ 800×480 display and 50mA backlight current, the current draw is 500mA total. You can reduce that down 370mA by running the backlight at half-brightness (25mA). With the backlight off, the decoder and display itself draws 250mA. If you want more backlight control, there’s a PWM input, connect that to your microcontroller or other PWM output and you can continuously dim the backlight as desired
