Texas Instruments TVP5147M1PFP manual Luminance Processing Control 2 Register, 2.11.10

Models: TVP5147M1PFP

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2.11.8Luminance Processing Control 2 Register

Functional Description

2.11.8Luminance Processing Control 2 Register

Subaddress

 

07h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

 

00h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

 

5

 

4

3

2

1

 

0

 

 

 

 

 

 

 

 

 

 

 

Luma filter select [1:0]

 

 

Reserved

Peaking gain [1:0]

 

Reserved

Luma filter selected [1:0]:

00 = Luminance adaptive comb enabled (default on CVBS)

01 = Luminance adaptive comb disabled (trap filter selected)

10 = Luma comb/trap filter bypassed (default on S-video, component mode, and SECAM) 11 = Reserved

Peaking gain [1:0]:

00 = 0 (default)

01 = 0.5

10 = 1

11 = 2

2.11.9Luminance Processing Control 3 Register

Subaddress

 

08h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

 

02h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

 

5

 

4

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

Trap filter select [1:0]

Trap filter select [1:0] selects one of the four trap filters to produce the luminance signal by removing the chrominance signal from the composite video signal. The stop band of the chroma trap filter is centered at the chroma subcarrier frequency with the stop-band bandwidth controlled by the two control bits.

Trap filter stop-band bandwidth (MHz):

Filter select [1:0]

NTSC ITU-R BT.601

PAL ITU-R BT.601

00

=

1.2129

1.2129

01

=

0.8701

0.8701

10

= (default)

0.7183

0.7383

11 =

0.5010

0.5010

2.11.10

Luminance Brightness Register

Subaddress

 

09h

 

 

 

 

 

Default

 

80h

 

7

6

5

4

3

2

1

0

Brightness [7:0]

Brightness [7:0]: This register works for CVBS, S-video, and component video luminance.

1111 1111 = 255 (bright)

1000 0000 = 128 (default)

0000 0000 = 0 (dark)

SLES140A—March 2007

TVP5147M1PFP

35

Page 43
Image 43
Texas Instruments TVP5147M1PFP Luminance Processing Control 2 Register, Luminance Processing Control 3 Register, 2.11.10