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S5D2508A01 - OSD PROCESSOR FOR MONITOR

Description

Table 1.

Pin Descriptions Pin No.

1 2 3 Signal VSS_A VCO_IN VREF1 Active I/O Input Input Ground (Analog Part) This voltage is generated at the external loop filter and goes into the input stage of the VCO.

Features

  • 256 ROM fonts (Each font consists of 12 x 18 dots. ).
  • Full Screen Memory Architecture Wide range PLL available (15 kHz.
  • 120 kHz) Programmable vertical height of character Programmable vertical and horizontal positioning Character color selection up to 16 different colors Programmable background color (Up to 16 colors) Character blinking, bor.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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OSD PROCESSOR FOR MONITOR S5D2508A01 OVERVIEW The S5D2508A01 is used to display some characters or symbols on a screen of monitor. Basically, the operation is to control the internal memory on chip and generate the R,G,B signals for some characters or symbols. The R,G,B signals are synchronized with the horizontal sync. Then the R,G,B signals are mixed with the main video signal in the Video Amp IC. The font data for characters or symbols are stored in the internal ROM. This stored data are accessed and controlled by the control data from a micro controller. The control data are transmitted through the I2C bus. All timing control signals including the system clock are synchronized with the horizontal sync. Therefore there is a PLL circuitry on chip.
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