AN5693K View Datasheet(PDF) - Panasonic Corporation

Part Name

Description

Manufacturer

AN5693K

Luminance,Chroma and Sync. Signals Processing IC(with Built-in I2C bus Interface)for PAL/NTSC Color-TV

Panasonic Corporation 

AN5693K

ICs for TV

s Technical Data (continued)

• Outline of major blocks (continued)

• I2C Bus Control Contents

1. For the Control information, for all sub-address, when data goes up, output increases.

(Example : Contrast 00 → contrast min., 7F → contrast max., Brightness 00 → pedestal low, FF → pedestal high)

2. Other control supplementary

(1) 00 : Color

When Color data is 00, chroma output is completely cutoff so that color is off.

(2) 01 : Tint

When tint data is 00, the skin color approaches red.When tint data is 7F, the skin color approaches green.

(3) 05, 06, 07(8-bit)and 0ED4, 0ED5(1-bit) : cutoff R, G, B

The cutoff controllable range has increased resolution with 1 extra bit and is segmented into 2 sub-section,

each section is variable by 8-bit DAC.

(Cutoff G is 1 section of 8-bit DAC, that has the same variable range as R, B)

Example : Case of R cutoff

Output

G cutoff

overlap by about1/8

R cutoff

0E-D4 : 0

1

05 : 00

FF00

FF

(4) 08, 09 : Drive R, B

8-bit DAC 1 section(no switching of sub-section).

(5) 0A : Video Adjust

Data 0*→ composite video min. F*→ composite video max. This control is used to adjust the composite

video level.

(6) 0A : Horizontal Centre

Data *0→ picture moves left. *F→ picture moves right.

(7) 0B : External DAC2 and 04 D7

External DAC2 has 8-bits DAC of 2 sections adjustment.

Data 01 → DC voltage shifts down.

Data FF → DC voltage shifts up.

(8) 0C : External DAC1

Data 00 → DC voltage shifts down.

Data 7F → DC voltage shifts up.

(9) 0D : External DAC3

Data 00 → DC voltage shifts down.

Data 7F → DC voltage shifts up.

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