參數(shù)資料
型號: SAA7127
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
文件頁數(shù): 9/40頁
文件大?。?/td> 155K
代理商: SAA7127
1999 May 31
9
Philips Semiconductors
Product specification
Digital video encoder
SAA7126H; SAA7127H
Input levels and formats
The SAA7126H; SAA7127H expects digital Y, Cb, Cr data
with levels (digital codes) in accordance with “CCIR 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 Cr-Y-Cb 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
“CCIR 601”signal component levels
Notes
1.
Transformation:
a) R = Y + 1.3707
×
(Cr
128)
b) G = Y
0.3365
×
(Cb
128)
0.6982
×
(Cr
128)
c) B = Y + 1.7324
×
(Cb
128).
Representation of R, G and B (or Cr, Y and Cb) at the output is 9 bits at 27 MHz.
2.
Table 2
8-bit multiplexed format (similar to “CCIR 601”)
COLOUR
SIGNALS
(1)
Y
Cb
Cr
R
(2)
G
(2)
B
(2)
White
Yellow
Cyan
Green
Magenta
Red
Blue
Black
235
210
170
145
106
81
41
16
128
16
166
54
202
90
240
128
128
146
16
34
222
240
110
128
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
Cb
0
Y
0
Cr
0
Y
1
Cb
2
Y
2
Cr
2
Y
3
0
1
2
3
0
2
相關(guān)PDF資料
PDF描述
SAA7127H Digital video encoder
SAA7128A Digital video encoder
SAA7128AH Digital video encoder
SAA7129AH Digital video encoder
SAA7129AH Digital video encoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7127H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7128 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7128A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
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