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B–y) –(r–y) y gnd r, Cl c, Ci b – Toshiba TLP511E User Manual

Page 37: C bus serial data input/check output i, C bus serial clock input

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7-10

Table 7-3-4 Terminal function of TDA4780

Fig. 7-3-11 Block diagram of TDA4780

Pin
No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Name

FSW

2

R

2

G

2

B

2

V

P

–(B–Y)

–(R–Y)

Y

GND

R

1

G

1

B

1

FSW

1

SC

Function

High speed switch 2 input

Red input 2

Green input 2

Blue input 2

Power supply voltage

Color difference input – (B–Y)

Color difference input – (R–Y)

Luminance input

GND

Red input 1

Green input 1

Blue input 1

High speed switch 1 input

Sandcastle pulse input

Pin
No.

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Name

BCL

C

PDL

CL

C

POST

CI

B

O

C

G

G

O

C

G

R

O

C

R

YHUE

SDA

SCL

Function

Equal beam current limit input

Memory capacitor for peak limit

Memory capacitor for leakage current
compensation

Memory capacitor for peak dark

Cut-off measurement input

Blue output

Blue cut-off memory capacitor

Green output

Green cut-off memory capacitor

Red output

Red cut-off memory capacitor

Y output/hue adjustment output

I

2

C bus serial data input/check output

I

2

C bus serial clock input

1

10 nF

1

10 nF

1

10 nF

C

L

A

M

P

2

10 nF

2

10 nF

2

10 nF

C

L

A

M

P

10 nF

10 nF

Y

47 nF

C

L

A

M

P

SELECTOR

INPUT

R

G

B

PAL/SECAM

NTSC

MATRIX

Y

0.45V
1.43V

CONTROL REGISTERS

SC5

YHI

DELOF

FSBL

HDTV

YEXH

BCOF

RELC

TCPL

NMEN

FSON1

FSDI51

FSON2

FSDI52

8 DATA

6 DATA

REGISTERS

DIGITAL ANALOG CONVERTERS

F SBL

NMEN

HDTV

BLANK

MP

TIMING

GENERATOR

CL

HV

(H)

SC5

DELOF

BREN

I

2

C-BUS

RECEIVER

SCL

SDA

I C-bus

2

Sand castle input

SC

330 nF

Leakage storagee

UGAP

220 nF

220 nF

220 nF

LEAKAGE

CURRENT

COMPARATOR

1ST AND 2ND

SWITCH-ON

DELAY

CUT-OFF

CONTROL

Leakage and
cut-off
current input

Cut-off storage

OUTPUT

CLAMP

Y-MATRIX

COLOR

DIFFERENCE

MATRIX

R-Y

G-Y

B-Y

ADBL

Y

Y

ADAPTIVE

BLACK

Y

BL

Y

BL

GAMMA

R

G

B

R

G

B

R

G

B

gamma

R

G

B

SATURATION

ADJUST

CONTRAST

ADJUST

BRIGHTNESS

ADJUST

MOD2

BLUE

STRETCH

BLST

B

B

BCOF

UGAP

BCOF

OUTPUT
BUFFER

WHITE

POINT

ADJUST

G

WHITE

POINT

ADJUST

R

WHITE

POINT

ADJUST

BLANK MP

BLANK

MP

BLANK MP

OUTPUT
BUFFER

OUTPUT
BUFFER

TCPL

RELC

PEAK DRIVE

LIMITER

CUT-OFF RELATED

VOLTAGE

COMPARATOR

VOLTAGE

COMPARATOR

MINIMUM

DETECTOR

UGAP

BAND GAP

REFERENCE

HUE

ADJUST

YEXH

SUPPLY

AVERAGE

BEAM

CURRENT

LIMITING

RELC

PEAK DRIVE

LIMITER

ABSOLUTE LEVEL

Peak drive
limiting strage

Average
beam
current
limiting
input

200

V

P

-BV

YHUE

Y-output
hue adjust
output

1

µ

F

1

µ

F

Peak dark
storage

FSW1

FSW2

TDA4780

TDA4780

R

G

B

R

G

B

R

O

G

O

B

O

V

UGAP

SAND CASTLE

DETECTOR

a2 ki

24

22

20

19

25

21

23

17

14

28

27

10

11

12

2

3

4

6

7

8

13

1

15

16

18

26

9

5

-(B-Y)

-(B-Y)

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