參數(shù)資料
型號(hào): SAA7109AE
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 消費(fèi)家電
英文描述: HD-CODEC
中文描述: SPECIALTY CONSUMER CIRCUIT, PBGA156
封裝: 15 X 15 MM, 1.05 MM HEIGHT, PLASTIC, MO-192, SOT-700-1, BGA-156
文件頁(yè)數(shù): 20/197頁(yè)
文件大?。?/td> 983K
代理商: SAA7109AE
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2004 Jun 29
20
Philips Semiconductors
Product specification
HD-CODEC
SAA7108AE; SAA7109AE
Table 3
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 4
Cursor bit map
Table 5
Cursor modes
8.5
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.
8.6
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 SAA7108AE; SAA7109AE 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 25
row 0
column 29
...
row 31
column 25
row 31
column 29
row 0
column 0
row 0
column 4
row 0
column 8
...
row 0
column 24
row 0
column 28
...
row 31
column 24
row 31
column 28
1
2
...
6
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7109AE/V1,518 功能描述:視頻 IC HD- VIDEO CODEC 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
SAA7109AE/V1,557 功能描述:視頻 IC HD- VIDEO CODEC 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
SAA7109AE/V1/G 功能描述:視頻 IC PC CODEC (W/OUT MICROVISION) 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
SAA7109AE/V1/G,518 功能描述:視頻 IC SAA7109AE/LBGA156/REEL13DP//V1 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
SAA7109AE/V1/G,557 功能描述:視頻 IC SAA7109AE/LBGA156/TRAYDPM//V1/ 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