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4. rgb signal amplification section -12 – Toshiba TLP511E User Manual

Page 39

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7-12

7-4. RGB Signal Amplification Section

7-4-1. RGB Signal Switch Circuit

The RGB input signals and the video signal demodu-

lated into RGB signals are switched by QB011 (Analog

SW: M52348FP). The block diagram of QB011 is shown

in Fig. 7-4-1.

7-4-2. Sync Signal Process Circuit

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19

1

2

3

4

5

6

7

8

9

10

11

12

13

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15

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17

18

0.01µ

0.01µ

0.01µ

0.01µ

47µ

+

0.01µ

+

+

0.01µ

+

+

+

+

+

0.01µ

+

+

0.01µ

0.01µ

R

OUT

G

OUT

B

OUT

G

OUT (for Sync on G)

H

OUT

V

OUT

OUTPUT

R

IN

1

G

IN

1

B

IN

1

H

IN

1

V

IN

1

R

IN

2

G

IN

2

B

IN

2

H

IN

2

V

IN

2

RGB
input

Demodulation
VIDEO
RGB

High : Demodulation

Low : RGB input

Vcc
5V

VIDEO

HD (CS) and VD signals are also switched in the same

way as described above. This IC provides the exclusive

output terminal for SYNC/G.

The RGB signals developed enter the RGB amplification

circuit via buffers, and the HD (CS), VD, SYNC/G signals

enter the sync signal process circuit.

Fig. 7-4-1 Block diagram of M52348FP

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