參數(shù)資料
型號: TVP5154AIPNPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PQFP128
封裝: PLASTIC, HTQFP-128
文件頁數(shù): 76/92頁
文件大小: 1089K
代理商: TVP5154AIPNPR
SLES214C – DECEMBER 2007 – REVISED SEPTEMBER 2010
www.ti.com
7.3.7
Vertical Scaling Field 2 Control
Address
3A9h
Default
0h
7
6
5
4
3
2
1
0
V_Field2[7:0]
15
14
13
12
11
10
9
8
Reserved
V_Field2[8]
Vertical scaling initial value in field 2 [8:0]: Initial value of vertical accumulator for field 2
For NTSC:
V_Field2 = (Vdesired/Vactive) × 256
For PAL:
V_Field2 = (1.5 × V_Field1) – 128
If V_Field 2 is negative, add V_Field1 to V_Field2 and add V_Field1 to V_Field1 until V_Field2 is positive.
7.3.8
Scaler Output Active Pixels
Address
3ABh
Default
2D0h
7
6
5
4
3
2
1
0
SCAL_PIXEL[7:0]
15
14
13
12
11
10
9
8
Reserved
SCAL_PIXEL[9:8]
SCAL_PIXEL [9:0]: Scaler active pixel outputs per line
7.3.9
Vertical Scaling Control
Address
3ACh
Default
2100h
7
6
5
4
3
2
1
0
VERT_COEF[7:0]
15
14
13
12
11
10
9
8
Reserved
1
Enable
Reserved
VERT_COEF[8]
Enabled: Enable vertical and horizontal scaler
0 = Disable scaler (default)
1 = Enable scaler
VERT_COEF [8:0]: Vertical scaling coefficient
VERT_COEF = (Vdesired/Vactive) × 256
7.3.10 Horizontal Scaling Control
Address
3ADh
Default
400h
7
6
5
4
3
2
1
0
HORZ_COEF[7:0]
15
14
13
12
11
10
9
8
Reserved
HORZ_COEF[14:8]
HORZ_COEF[14:0]:
Horizontal scaling coefficient, MSB five bits are integer values and LSB ten bits are fraction numbers.
HORZ_COEF = Hactive/Hdesired
78
Internal Control Registers
Copyright 2007–2010, Texas Instruments Incorporated
Product Folder Link(s): TVP5154A
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