Texas Instruments TVP5147M1PFP AFE Fine Gain for Pb Register, AFE Fine Gain for YChroma Register

Models: TVP5147M1PFP

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2.11.44 AFE Fine Gain for Pb Register

Functional Description

2.11.44 AFE Fine Gain for Pb Register

Subaddress

4Ah−4Bh

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

900h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Subaddress

 

7

 

6

 

5

4

 

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

4Ah

 

 

 

 

 

 

 

FGAIN 1 [7:0]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4Bh

 

 

 

 

Reserved

 

 

 

FGAIN 1 [11:8]

 

FGAIN 1 [11:0]: This fine gain applies to component Pb.

Fine_Gain = (1/2048) * FGAIN 1, where 0 FGAIN 1 4095

This register works only in manual gain control mode. When AGC is active, writing to any value is ignored.

1111 1111 1111 = 1.9995

1100 0000 0000 = 1.5

1001 0000 0000 = 1.125 (default)

1000 0000 0000 = 1

0100 0000 0000 = 0.5

0011 1111 1111 to 0000 0000 0000 = Reserved

2.11.45 AFE Fine Gain for Y_Chroma Register

Subaddress

4Ch−4Dh

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

900h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Subaddress

 

7

 

6

 

5

4

 

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

4Ch

 

 

 

 

 

 

 

FGAIN 2 [7:0]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4Dh

 

 

 

 

Reserved

 

 

 

FGAIN 2 [11:8]

 

FGAIN 2 [11:0]: This gain applies to component Y channel or S-video chroma (see AFE fine gain for Pb register, Section 2.11.44).

This register works only in manual gain control mode. When AGC is active, writing to any value is ignored.

1111 1111 1111 = 1.9995

1100 0000 0000 = 1.5

1001 0000 0000 = 1.125 (default)

1000 0000 0000 = 1

0100 0000 0000 = 0.5

0011 1111 1111 to 0000 0000 0000 = Reserved

2.11.46 AFE Fine Gain for Pr Register

Subaddress

4Eh−4Fh

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

900h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Subaddress

 

7

 

6

 

5

4

 

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

4Eh

 

 

 

 

 

 

 

FGAIN 3 [7:0]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4Fh

 

 

 

 

Reserved

 

 

 

FGAIN 3 [11:8]

 

FGAIN 3 [11:0]: This fine gain applies to component Pr (see AFE fine gain for Pb register, Section 2.11.44).

This register works only in manual gain control mode. When AGC is active, writing to any value is ignored.

1111 1111 1111 = 1.9995

1100 0000 0000 = 1.5

1001 0000 0000 = 1.125 (default)

1000 0000 0000 = 1

0100 0000 0000 = 0.5

0011 1111 1111 to 0000 0000 0000 = Reserved

52

TVP5147M1PFP

SLES140A—March 2007

Page 60
Image 60
Texas Instruments TVP5147M1PFP manual AFE Fine Gain for Pb Register, AFE Fine Gain for YChroma Register