PCB8517 Просмотр технического описания (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

PINNING

SYMBOL

VSSA

VCO

BIAS

VDDA

HFLB

EN

SDI

SCK

VDDD

VFLB

HTONE

FB

BLUE

GREEN

RED

VSSD

PIN

DESCRIPTION

1 analog ground

2 DC control voltage input/output to regulate the internal PLL oscillator frequency; a low-pass filter

circuit is connected to this pin

3 bias input/output to regulate the bias current of internal current control oscillator to resonate at a

specific dot frequency

4 analog power supply

5 horizontal sync input signal from flyback circuit with negative polarity

6 active LOW input to enable serial interface

7 data input of serial interface

8 clock input of serial interface

9 digital power supply

10 vertical sync input signal from flyback circuit with negative polarity

11 half tone control which outputs a logic 1 during windowing except characters are displayed; it is

used to lower the external RED, GREEN and BLUE amplifier gain to achieve a transparent

windowing effect

12 fast blanking output of OSD; active HIGH and high impedance when OSD is disabled

13 blue colour output of OSD; active HIGH and high impedance when OSD is disabled

14 green colour output of OSD; active HIGH and high impedance when OSD is disabled

15 red colour output of OSD; active HIGH and high impedance when OSD is disabled

16 digital ground

handbook, halfpage

VSSA 1

VCO 2

16 VSSD

15 RED

BIAS 3

14 GREEN

VDDA 4

HFLB 5

13 BLUE

PCB8517

12 FB

EN 6

11 HTONE

SDI 7

10 VFLB

SCK 8

9 VDDD

MGD760

Fig.2 Pin configuration.

1997 Mar 03

4

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