GENERAL DESCRIPTION

The PCB8517 is a stand-alone OSD which is used to display the adjustment/status information on the screen of an auto-sync monitor for menu driving application.

FEATURES

Interface with microcontroller

• 3-wire high speed (maximum 2.5 Mbits/s) serial interface with three types of transmission sequence.

On-Screen Display (OSD)

• On-chip PLL oscillator to generate the OSD dot clock frequency which is 384 × horizontal sync frequency

• Horizontal sync frequency range of 10 to 100 kHz

• 10 rows of 24 characters display buffer

• 128 character fonts

• 12 × 16 character matrix

• Programmable height of displayed character (from 16 to 63 scan-lines); frame basis

• 4 types of character size; single/double character height/width; row basis

• Horizontal starting position: 32 different positions

(6 dots for each step)

• Vertical starting position: 64 different positions

(4 scan-lines for each step)

• 8 foreground character colours: selection of only 2 out of the 8 (outside the window) and 4 out of the of 8 (in thewindow) in the same row

• 3 character shadowing modes:

– No shadow

– Shadowing

– Bordering shadow

• 3 fully programmable background windows with overlapping capability and presetting priorities (for multi-level application). The window colour can be selected from 1 out of 8

• Half tone in background window supported

• Single 5 V power supply

• Available in DIP16 package.