Evan Allen
UNITED STATES OF AMERICA • + Follow
Components
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100nF capacitor |
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10uF capacitor |
x 2 | |
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2n2222 transistor |
x 1 | |
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150 ohm resistor |
x 1 | |
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75 ohm resistor |
x 1 | |
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680 ohm resistor |
x 1 | |
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1k ohm resistor |
x 1 | |
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4.7k ohm resistor |
x 3 | |
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74LS86 |
x 1 | |
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74LS04 |
x 1 | |
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7805 |
x 1 |
Description
TTL to composite converter
This project takes TTL signals for horizontal sync, vertical sync, and video information and uses them to generate a proper voltage level composite signal. I have all the details on my blog here.
Schematic and Layout
github kicad files
https://github.com/abzman/small-useful-PCBs/tree/main/ttl%20to%20composite%20video%20generator
Feb 18,2024
552 views
TTL to composite converter
Convert from any polarity horizontal sync, vertical sync, and video to a composite video signal with the right voltages (timing is unchanged
552
2
0
Published: Feb 18,2024
Download Gerber file 1
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