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Thread: What does TTL Blanking mean?

  1. #1
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    Default What does TTL Blanking mean?

    Could someone please explain to me what TTL Blanking means? I am a beginner so thats obviously why i dont know. ops:

  2. #2
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    TTL is logic and only has 2 states, 0 Volts or 5 Volts (off or on).
    Analogue blanking can be any voltage between 0 and 5 Volts, so therefore the laser can be at any brightness from totally off to fully on.

    If you have a RGB laser and all three are analogue then you have the ability to display pretty much any shade of any colour.
    If you have TTL lasers you are limited to 7 colours.

    Jim

  3. #3

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    TTL actually stands for Transistor to Transistor Logic. Which is to do with digital circuits of old that used Transistors as there make up. The logic levels worked on 1=+5v and 0=0v. It is still used today as we can see to descibe the blanking signal required for some lasers[/b]

  4. #4
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    So basically if the Laser is capable of TTL Blanking, when it is connected to a certain circuit board the software can turn it on and off when needed to display different RGB colours. Is that right? :?:

  5. #5
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    Thats about it , but with ttl you only have a limited number of colour whereas with analogue you have virtually limitles colours and shades.

    Jim

  6. #6

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    With TTL and RGB, your just going to get the basic 6 colours, WHITE and OFF
    1. RED
    2. BLUE
    3. GREEN
    4. CYAN or TURQUOISE (BLUE+GREEN)
    5. YELLOW (RED+GREEN)
    6. MAGENTA or PURPLE (RED+BLUE)
    7. WHITE (ALL ON)
    8. BLACK (ALL OFF)

    With Analogue modulation, in theory you should be able to get 16.7 million colours, which is the usual Windows colour pallette

  7. #7
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    Quote Originally Posted by mazfg
    With TTL and RGB, your just going to get the basic 6 colours and OFF
    1. RED
    2. BLUE
    3. GREEN
    4. CYAN or TURQUOISE (BLUE+GREEN)
    5. YELLOW (RED+GREEN)
    6. MAGENTA or PURPLE (RED+BLUE)
    7. BLACK or OFF[/list]

    With Analogue modulation, in theory you should be able to get 16.7 million colours, which is the usual Windows colour pallette
    And white (all on) 8)

  8. #8

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    Cheers jeejeedr, I knew I was missing something!!!!!!!!!!!!!!! :lol:

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