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40 afe coarse gain for ch 1 register, 41 afe coarse gain for ch 2 register – Texas Instruments TVP5147M1PFP User Manual

Page 58

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Functional Description

50

SLES140A—March 2007

TVP5147M1PFP

2.11.40 AFE Coarse Gain for CH 1 Register

Subaddress

46h

Default

20h

7

6

5

4

3

2

1

0

CGAIN 1 [3:0]

Reserved

CGAIN 1 [3:0]: Coarse_Gain = 0.5 + (CGAIN 1)/10, where 0

CGAIN 1

15

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

1111 = 2
1110 = 1.9
1101 = 1.8
1100 = 1.7
1011 = 1.6
1010 = 1.5
1001 = 1.4
1000 = 1.3
0111 = 1.2
0110 = 1.1
0101 = 1
0100 = 0.9
0011 = 0.8
0010 = 0.7 (default)
0001 = 0.6
0000 = 0.5

2.11.41 AFE Coarse Gain for CH 2 Register

Subaddress

47h

Default

20h

7

6

5

4

3

2

1

0

CGAIN 2 [3:0]

Reserved

CGAIN 2 [3:0]: Coarse_Gain = 0.5 + (CGAIN 2)/10, where 0

CGAIN 2

15

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

1111 = 2
1110 = 1.9
1101 = 1.8
1100 = 1.7
1011 = 1.6
1010 = 1.5
1001 = 1.4
1000 = 1.3
0111 = 1.2
0110 = 1.1
0101 = 1
0100 = 0.9
0011 = 0.8
0010 = 0.7 (default)
0001 = 0.6
0000 = 0.5