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參數(shù)資料
| 型號： | SAA7104H |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | GT 38C 38#12 PIN PLUG |
| 中文描述： | COLOR SIGNAL ENCODER, PQFP64 |
| 封裝： | 14 X 14 MM, 2.70 MM HEIGHT, PLASTIC, MS-022, SOT-393-1, QFP-64 |
| 文件頁數(shù)： | 11/71頁 |
| 文件大?。?/td> | 354K |
| 代理商： | SAA7104H |
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2004 Mar 04
11
Philips Semiconductors
Product specification
Digital video encoder
SAA7104H; SAA7105H
Table 2
Layout of a byte in the cursor bit map
For each direction, there are 2 registers controlling the
position of the cursor, one controls the position of the
‘hot spot’, the other register controls the insertion position.
The hot spot is the ‘tip’ of the pointer arrow. It can have any
position in the bit map. The actual position registers
describe the co-ordinates of the hot spot. Again 0,0 is the
upper left corner. While it is not possible to move the
hot spot beyond the left respectively upper screen border
thisisperfectly legalfortheright respectivelylower border.
It should be noted that the cursor position is described
relative to the input resolution.
Table 3
Cursor bit map
Table 4
Cursor modes
7.5
RGB Y-C
B
-C
R
matrix
RGB input signals to be encoded to PAL or NTSC are
converted to the Y-C
B
-C
R
colour space in this block. The
colour difference signals are fed through low-pass filters
and formatted to a ITU-R BT.601 like 4 : 2 : 2 data stream
for further processing.
A gain adjust option corrects the level swing of the
graphics world (black-to-white as 0 to 255) to the required
range of 16 to 235.
The matrix and formatting blocks can be bypassed for
Y-C
B
-C
R
graphics input.
WhentheauxiliaryVGAmodeisselected,theoutputofthe
cursor insertion block is immediately directed to the triple
DAC.
7.6
Horizontal scaler
The high quality horizontal scaler operates on the 4 : 2 : 2
data stream. Its control engines compensate the colour
phase offset automatically.
The scaler starts processing after a programmable
horizontal offset and continues with a number of input
pixels. Each input pixel is a programmable fraction of the
current output pixel (XINC/4096). A special case is
XINC = 0, this sets the scaling factor to 1.
If the SAA7104H; SAA7105H input data is in accordance
with “ITU-R BT.656” the scaler enters another mode.
In this event, XINC needs to be set to 2048 for a scaling
factor of 1. With higher values, upscaling will occur.
The phase resolution of the circuit is 12 bits, giving a
maximum offset of 0.2 after 800 input pixels. Small FIFOs
rearrange a 4 : 2 : 2 data stream at the scaler output.
D7
D6
D5
D4
D3
D2
D1
D0
pixel n + 3
D1
pixel n + 2
D1
pixel n + 1
D1
pixel n
D1
D0
D0
D0
D0
BYTE
D7
D6
D5
D4
D3
D2
D1
D0
0
row 0
column 3
row 0
column 7
row 0
column
11
...
row 0
column
27
row 0
column
31
...
row 31
column
27
row 31
column
31
row 0
column 2
row 0
column 6
row 0
column
10
...
row 0
column
26
row 0
column
30
...
row 31
column
26
row 31
column
30
row 0
column 1
row 0
column 5
row 0
column 9
row 0
column 0
row 0
column 4
row 0
column 8
1
2
...
6
...
row 0
column
25
row 0
column
29
...
row 31
column
25
row 31
column
29
...
row 0
column
24
row 0
column
28
...
row 31
column
24
row 31
column
28
7
...
254
255
CURSOR
PATTERN
CURSOR MODE
CMODE = 0
CMODE = 1
00
01
10
11
second cursor colour second cursor colour
first cursor colour
transparent
inverted input
first cursor colour
transparent
auxiliary cursor
colour
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA7105H | Digital video encoder |
| SAA7105H | Digital video encoder |
| SAA7108 | PC-CODEC |
| SAA7109 | PC-CODEC |
| SAA7108E | PC-CODEC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA7105E | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder |
| SAA7105E/V1/G | 功能描述:視頻 IC PC-DENC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7105E/V1/G,518 | 功能描述:視頻 IC PC-DENC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7105E/V1/G,557 | 功能描述:視頻 IC PC-DENC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7105E/V1/G-T | 功能描述:視頻 IC PC-DENC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
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