Datasheet

TVP5150AM1
www.ti.com SLES209E–NOVEMBER 2007– REVISED OCTOBER 2011
3.21.51 Status Register #3
Address 8Ah
7 6 5 4 3 2 1 0
Analog gain Digital gain
Analog gain: 4-bit front-end AGC analog gain setting
Digital gain: 4 MSBs of 6-bit front-end AGC digital gain setting
The product of the analog and digital gain is as follows:
Gain Product = (1 + 3 × analog_gain / 15) × (1 + gain_step × digital_gain / 4096)
Where,
0 ≤ analog_gain ≤ 15
0 ≤ digital_gain ≤ 63
The gain_step setting as a function of the analog_gain setting is shown in Table 3-15.
Table 3-15. gain_step Setting
analog_gain gain_step
0 61
1 55
2 48
3 44
4 38
5 33
6 29
7 26
8 24
9 22
10 20
11 19
12 18
13 17
14 16
15 15
3.21.52 Status Register #4
Address 8Bh
7 6 5 4 3 2 1 0
Subcarrier to horizontal (SCH) phase
SCH (color PLL subcarrier phase at 50% of the falling edge of horizontal sync of line one of odd field; step
size 360°/256)
0000 0000 = 0.00°
0000 0001 = 1.41°
0000 0010 = 2.81°
1111 1110 = 357.2°
1111 1111 = 358.6°
Copyright © 2007–2011, Texas Instruments Incorporated Functional Description 59
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