PCB8517 查看數據表（PDF） - Philips Electronics

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PCB8517

Stand-alone OSD for monitor applications

Philips Electronics 

Philips Semiconductors

Stand-alone OSD for monitor applications

Objective specification

PCB8517

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 the

window) 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.

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.

The display operation of the device is controlled by a

microcontroller which programs the internal 273 bytes of

RAM via a 3-wire high-speed serial interface. The on-chip

PLL oscillator and programmable character height are

used to keep the same character size displayed on the

screen in different display modes, VGA, SVGA and XGA

for example.

The OSD of the PCB8517 provides display buffers of

10 rows with 24 characters each. These display buffers

can select from 128 customized character fonts (with

12 × 16 bit resolution) to be displayed. The characters

displayed on the screen can be specified double height,

double width, different colour and with/without shadowing.

Three positional background windows are provided for

multi-level application.

ORDERING INFORMATION

TYPE

NUMBER

PCB8517P

NAME

DIP16

PACKAGE

DESCRIPTION

plastic dual in-line package; 16 leads (300 mil)

VERSION

SOT38-4

1997 Mar 03

2

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