參數(shù)資料
型號(hào)： SAA7128A
廠商： NXP Semiconductors N.V.
英文描述： Digital video encoder
中文描述： 數(shù)字視頻編碼器
文件頁(yè)數(shù)： 13/55頁(yè)
文件大?。?/td> 262K
代理商： SAA7128A
2003 Dec 09
13
Philips Semiconductors
Product specification
Digital video encoder
SAA7128AH; SAA7129AH
7.10
Input levels and formats
The SAA7128AH; SAA7129AH expects digital Y, C
B
and C
R
data with levels (digital codes) in accordance with
“ITU-R BT.601”
For C and CVBS outputs, deviating amplitudes of the
colour difference signals can be compensated by
independent gain control setting, while gain for luminance
is set to predefined values, distinguishable for 7.5 IRE
set-up or without set-up.
The RGB, respectively C
R
-Y-C
B
path features a gain
setting individually for luminance (GY) and colour
difference signals (GCD).
Reference levels are measured with a colour bar,
100% white, 100% amplitude and 100% saturation.
Table 1
“ITU-R BT.601”signal component levels
Notes
1.
Transformation:
a) R = Y + 1.3707
×
(C
R
128)
b) G = Y
0.3365
×
(C
B
128)
0.6982
×
(C
R
128)
c) B = Y + 1.7324
×
(C
B
128).
Representation of R, G and B (or C
R
, Y and C
B
) at the output is 9 bits at 27 MHz.
2.
Table 2
8-bit multiplexed format (similar to “ITU-R BT.601”)
COLOUR
SIGNALS
(1)
Y
C
B
128
16
166
54
202
90
240
128
C
R
128
146
16
34
222
240
110
128
R
(2)
G
(2)
B
(2)
White
Yellow
Cyan
Green
Magenta
Red
Blue
Black
235
210
170
145
106
81
41
16
235
235
16
16
235
235
16
16
235
235
235
235
16
16
16
16
235
16
235
16
235
16
235
16
TIME
BITS
0
1
2
3
4
5
6
7
Sample
Luminance pixel number
Colour pixel number
C
B
0
Y0
C
R
0
Y1
C
B
2
Y2
C
R
2
Y3
0
1
2
3
0
2
相關(guān)PDF資料
PDF描述
SAA7128AH Digital video encoder
SAA7129AH Digital video encoder
SAA7129AH Digital video encoder
SAA7128 Digital video encoder
SAA7128H Digital video encoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7128AH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7128H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7129 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7129/DENC29A 制造商:NXP Semiconductors 功能描述:
SAA7129AH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
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