Has any one played with a STV5730A video overlay chip


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  1. #1
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    Default Newark

    I just did a search on Newark here in mexico on the PIC18F46K20 it costs $3.50. beside I just looked it up on the melabs picmicro selector guide thats how I came up with that.

    But I now found what I was looking for

    The MTV021 is designed for monitor applications to display built-in characters or fonts onto monitor screens. The display operation occurs by transferring data and control information from the micro-controller to RAM through a serial data interface. It can execute full-screen display automatically, as well as specific functions such as character background color, bordering, shadowing, blinking, double height and width, font by font color control, frame positioning, frame size control by character height and row-to-row spacing, horizontal display resolution, full-screen erasing, fade-in/fade-out effect, windowing effect and shadowing on window.
    The MTV021 provides 256 standard and 16 multi-color characters and graphic fonts for more efficacious applications. The full OSD menu is formed by 15 rows x 30 columns, which can be positioned anywhere on the monitor screen by changing vertical or horizontal delay.
    Moreover, the MTV021 also provides 8 PWM DAC channels with 8-bit resolution and a PWM clock output for external digital-to-analog control.

    Features:
    • Horizontal SYNC input up to 130 KHz
    • On-chip PLL circuitry up to 96 MHz
    • Programmable horizontal resolutions up to 1524 dots per display row
    • Full-screen display consists of 15 (rows) by 30 (columns) characters
    • 12 x 18 dot matrices per character
    • Total of 272 characters and graphic fonts, including 256 standard and 16 multi-color mask ROM fonts
    • 8 color-selectable maximum per display character
    • 7 color-selectable maximum for character background
    • Double character height and/or width control
    • Programmable positioning for display screen center
    • Bordering, shadowing and blinking effect
    • Programmable character height (18 to 71 lines) control
    • Row to row spacing register to manipulate the constant display height
    • 4 programmable background windows with multi-level operation and shadowing on window effect
    • Software clears bit for full-screen erasing
    • Fade-in/fade-out effect
    • Half tone and fast blanking output
    • 8-channel/8-bit PWM D/A converter output
    • Compatible with SPI bus or I2C interface with slave address 7AH (slave address is mask option)
    • 16-pin, 20-pin or 24-pin PDIP package

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    Quote Originally Posted by jason View Post
    I just did a search on Newark here in mexico on the PIC18F46K20 it costs $3.50. beside I just looked it up on the melabs picmicro selector guide thats how I came up with that.
    Also, says lead time 24 days, not in stock, non-stocked, not gonna be stocked for awhile...

  3. #3
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    Quote Originally Posted by jason View Post
    But I now found what I was looking for

    The MTV021 is designed for monitor applications to display built-in characters or fonts onto monitor screens.
    Looks interesting

    Do you have a link to a supplier ?

    I found several sites with the datsheet on it but cant find anyone who stocks it or how much it costs.
    Keith

    www.diyha.co.uk
    www.kat5.tv

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    Quote Originally Posted by keithdoxey View Post
    Do you have a link to a supplier ?
    http://bg-electronics.de/catalog/pro...oducts_id/2537

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    Thanks Dave
    Keith

    www.diyha.co.uk
    www.kat5.tv

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