Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [video]

Specify video format, e.g. NTSC, ATSC, VGA, etc.

371 questions
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What is this inductor symbol from a video circuit?

This is from the datasheet for the TDA8217 PAL decoder and video processor. This is the "Applicaton Diagram". The circled item is unfamiliar to me, I asked at my local electronic components distributor and no-one there recognized it either. It…
hyarion
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How do analog video signals work

I have always wondered how an only 1 wire line (signal and ground) can make a whole color image appear on a screen full of thousands of pixels. How exactly do these signals work and what characteristics make tv's show different things?
skyler
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4 answers

Why can't analog video be compressed like digital video (example inside)?

I'm learning the basics of analog and digital TV signals and I came across this (original link, now gone) short article (see the next page as well). Why can't analog video signals be compressed in a similar way to digital signals when using MPEG-2…
4nt
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How can I control a CGA screen with an Arduino?

I'm getting one of these http://www.old-computers.com/museum/computer.asp?st=1&c=446 I'm planning to build a server inside it. And I was thinking of using the built in CGA-monitor as a statusdisplay (LCDInfo style, or whatever the cool geeks use…
Christian Wattengård
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Learning videos for electronic concepts?

Are there any interesting and graphical videos for learning electronic concepts, like basic principles of capacitor, inductor, resistor, transistor and other advanced concepts like digital electronics? I am mostly looking for animated videos which…
Kevin Boyd
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What is "rabbit ear" in a video-capture context?

I was reading the TVP5158 datasheet, and ran into a register bit that would enable "rabbit ear". What is that?
Shalom Craimer
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Composite/RGB Video from simple hardware

I'm designing a 68000-based VGM player, and I'd like it to output some sort of 'visualization' of the currently playing song to a TV through either RGB or Composite (video encoder probably for that.) I'm thinking of using this system to display…
Tristan
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4
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How much resistance is too much resistance for a video switch?

I'm looking for a device to switch video signals; a video switch. I want to use a dual/triple switch for two purposes, first to switch between two video signals, and secondly to switch the signal between open and +3.3V (which drives the pixel on the…
Thomas O
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Can this old portable CRT TV connect to a RPi?

I'm a scrapper and hacker of vintage electronics. I found this wacky old portable TV with a small B&W screen and I really love the look of it. I want to feed it video (or something) from a Raspberry Pi. However, it does not have any kind of video…
m0j0
3
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0 answers

Advice on upgrading a circuit design for s-video

I'd need some advice on a circuit, which generates analog video (s-video) from composite and Chroma (a mod inside an old Sinclair Spectrum computer). I haven't designed the circuit myself, but I managed to build one :) The circuit is working, but…
user161284
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VGA Timing - Sync & Porch Positions - FPGA

I've been programming a VGA Module in verilog, and have spent some time fighting with my monitor to display some test colours. When referencing VGA timing diagrams online, it seems many are similar but the front, back & sync pulse positions are…
g-radam
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What micro controllers or microprocessors are capable of high resolution video but are not BGA?

I am looking for any chip that I can use to display video at a high resolution (at least 720p). There is no need for I know of the Blackfin processors, but they are all BGA. The PIC24FJ256DA210 is capable of only 640 x 480 sadly. I am guessing that…
hak8or
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1 answer

Analog video crop circuit

I have an old 16:9 CRT TV that has a zoom function. If the input signal is 4:3 letterboxed, in zoom mode it will only show the middle part stretched to the full screen leaving the black bars above and below the visible part of the screen. It's also…
tpimh
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Correct order of monitor/display timing

I'm trying to make a video timing generator on an FPGA. I'm finding a difference online in the order this occurs: Here's one version: and here's another: Where this seems inconsistent: If scanning from left to right, top to bottom, does the…
Sittin Hawk
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Understanding PAL signal on PCB

I have a decoder circuit that includes TW9900 video decoder. The decoder doesn't work properly. There is a matching and AC coupling circuit on analog inputs of the decoder. To finding the problem, i scoped the analog signals on PCB. Why i see a…
Berker Işık
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