SAA8113HL View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

SAA8113HL

Digital PC-camera signal processor

Philips Electronics 

Philips Semiconductors

Digital PC-camera signal processor

Preliminary specification

SAA8113HL

8.3 RGB processing

The RGB processing (see Fig.4) includes several features:

• Colour space matrix to handle different types of colour

sensors. The result is an optimum colour reproduction

through the minimization of colour errors. The default

matrix coefficients (positive or negative) can be adjusted

through an external interface.

• Separate and adjustable black offsets for

R, G and B signals.

• Separate gain controls for R and B signals dedicated to

white balance control. The colour temperature can be

adjusted independently of the colour matrix.

• Knee function (compression factor and knee point are

adjustable).

• Adjustable gamma function to compensate for the

non-linearity of display devices.

The RGB path has a reduced bandwidth (less than

1 MHz), which is required for CVBS output.

handbook, full pagewidth

Y

CR

CB

Rblack Rgain

LPF

KNEE

+×

Gblack

LPF

COLOUR

MATRIX

+

KNEE

Bblack Bgain

LPF

KNEE

+×

Fig.4 RGB processing diagram.

GAMMA

R

GAMMA

G

GAMMA

B

FCE315

1999 Sep 27

11

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