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.