TVP5146M2IPFPR datasheet(49/109 Pages) TI2

49 / 109 page

TVP5146M2

www.ti.com

SLES141H

– JULY 2005 – REVISED FEBRUARY 2012

Table 2-29. Component Y Contrast Register

Subaddress

11h

Default

80h

Y contrast [7:0]

Y contrast [7:0]:

This register works only with YPbPr component video. For RGB video, use the AFE gain registers.

0000 0000 = minimum

1000 0000 = default

1111 1111 = maximum

For component video outputs, the total luminance gain relative to the nominal luminance gain as a function of the Y contrast [7:0] is as

follows:

Y Gain = (nominal_luminance_gain)

× (Y contrast [7:0] / 128)

Table 2-30. Component Pb Saturation Register

Subaddress

12h

Default

80h

Pb saturation [7:0]

Pb saturation:

This register works only with YPbPr component video. For RGB video, use the AFE gain registers.

0000 0000 = minimum

1000 0000 = default

1111 1111 = maximum

For component video, the total Pb gain relative to the nominal Pb gain as a function of the Pb saturation [7:0] setting is as follows:

Pb Gain = (nominal_chrominance_gain)

× (Pb saturation [7:0] / 128)

Table 2-31. Component Y Brightness Register

Subaddress

14h

Default

80h

Y brightness [7:0]

Y brightness:

This register works only with YPbPr component video. For RGB video, use the AFE gain registers.

0000 0000 = minimum

1000 0000 = default

1111 1111 = maximum

For component video, the output black level relative to the nominal black level (64 out of 1024) as a function of Y brightness [7:0] is as

follows:

Black Level = nominal_black_level + (Y brightness [7:0]

– 128)

Functional Description

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