参数资料
型号: TVP5151IPBSQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 颜色信号转换
英文描述: COLOR SIGNAL DECODER, PQFP32
封装: GREEN, PLASTIC, QFP-32
文件页数: 53/86页
文件大小: 964K
代理商: TVP5151IPBSQ1
TVP5151
www.ti.com
SLES241C – SEPTEMBER 2009 – REVISED SEPTEMBER 2010
3.21.50 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
3.21.51 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 2009–2010, Texas Instruments Incorporated
Functional Description
57
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