參數(shù)資料
型號： SAA8116
廠商： NXP Semiconductors N.V.
英文描述： Digital PC-camera signal processor including microcontroller and USB interface
中文描述： 數(shù)碼電腦攝像頭信號處理器，包括微控制器和USB接口
文件頁數(shù)： 14/60頁
文件大?。?/td> 237K
代理商： SAA8116
2001 May 04
14
Philips Semiconductors
Product specification
Digital PC-camera signal processor including
microcontroller and USB interface
SAA8116
C
OLOUR MATRIX
A programmable 3
×
3 colour matrix (see Fig.6) is used to convert the extracted colour information, R, G and B from the
sensor colour space to a standard RGB colour space.
With B and W sensors, a unity matrix is used.
To control the white balance, the gain of the red and blue stream can be changed.
Gamma and knee are combined in one function with adjustable gain.
handbook, full pagewidth
G or Y
G
R
B
R or (2R-G)
B or (2B-G)
COLOUR
MATRIX
GAMMA/
KNEE
FCE742
Rgain
×
Bgain
×
Fig.6 RGB processing diagram.
YUV P
ROCESSING
Following the RGB processing, the R, G and B signals are
converted to YUV 4 : 2 : 2 by a fixed matrix (see Fig.7).
Then, the luminance and chrominance signals are
processed separately.
Theluminanceprocessingconsistsofedgeenhancement.
This feature is very flexible. First, it is possible to adjust the
bandwidth and the level of the edge detection. Secondly,
the amount of edge enhancement can be independently
adjusted for the horizontal or vertical edge or for the high
or low frequency edge.
The chrominance processing consists of a colour killer
(white clip) and a UV gain control (see Fig.8). Processing
is done on the multiplexed two-times-downsampled
UV chrominance signals. The sensor input is used to kill
the colour of over-exposed pixels. It is possible to adjust
the number of pixels on which the correction is applied.
The YUV processing block concludes with separate gain
controls on the Y, U and V signals. These gains can be
used to fine tune the Y, U and V colour balance and also
to adjust the luminance and saturation without disturbing
the AE and AWB control loops.
FCE342
UV
Y
R
G
B
CONVERSION
MATRIX
DOWN-
SAMPLING
AND MUX
Fig.7 RGB to YUV conversion.
handbook, halfpage
UV
UV
FCE743
WHITE CLIP
UV GAIN
CONTROL
Fig.8 UV processing.
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SAA8116104BE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC PC WEB CAMERA DSP WITH USB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
SAA8116104BE-S 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC PC WEB CAMERA DSP WITH USB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
SAA8116104BE-T 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC PC WEB CAMERA DSP WITH USB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
SAA8116ET 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital PC-camera signal processor including microcontroller and USB interface
SAA8116HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital PC-camera signal processor, microcontroller andUSB interface
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