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參數(shù)資料
| 型號： | sda 9188 |
| 廠商： | SIEMENS AG |
| 英文描述： | Picture-in-Picture Processor with On-Chip PLL(片內(nèi)鎖有相環(huán)的畫中畫處理器) |
| 中文描述： | 子母畫面處理器的片上鎖相環(huán)（片內(nèi)鎖有相環(huán)的畫中畫處理器） |
| 文件頁數(shù)： | 10/31頁 |
| 文件大小： | 450K |
| 代理商： | SDA 9188 |
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Semiconductor Group
10
RGB, Y, U, V Outputs
A digital RGB matrix converts the Y, U, V data in R, G, B data.
The equation of the implemented RGB Matrix are:
R = Y + 0.75 V
G = Y – 0.375 V – 0.1875 U
B = Y + U
For a signal with 100 % white and 75 % color saturation the amplitudes of the analog input signals
have to be set according the following relation:
Y / U / V = 0.72 / 0.95 / 1
By means of an internal switch at the output of the RGB matrix it is possible to by-pass the matrix
with the digital data for Y, U and V and feed them directly into the D/A converters. During this
operation mode the chrominance data U and V will be inverted.
D/A Conversion
SDA 9188-3X includes three 6-bits D/A converters. Each D/A converter delivers a current through
an external resistor that is to be connected between OUT1-OUT3 and
V
SSA
. The resistor value
determines the output voltages (
see application circuit
). The assignment of outputs OUT1-OUT3
to R, G, B and Y, U, V is shown in
table 5
. It is possible to change the output voltage via
I
2
C bus
Register 4
.
The tolerances of the output voltages can be reduced significantly if the resistor at
V
REF
is replaced
by means of a constant current source.
Table 5
Assignment of Output Signals to OUT1-OUT3
Borderframe
The width of the border frame can be adjusted in two steps, the intensity of the frame can be set in
16 steps via the
I
2
C bus.
Output
RGB
YUV
OUT1
R
– V
OUT2
G
Y
OUT3
B
– U
SDA 9188-3X
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SDA9188-3X | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Picture-in-Picture Processor with On-Chip PLL |
| SDA9189 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:畫中畫子畫面處理集成電路 |
| SDA9189X | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Quarter PIP Processor |
| SDA9189X-A132 | 制造商:Siemens 功能描述:Part Number Only |
| SDA9205-2 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Triple 8-Bit Analog-to-Digital-Converter |
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