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參數(shù)資料
| 型號： | SD1210 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Dual-Interface SXGA TFT LCD Display Controller |
| 中文描述： | 雙接口SXGA TFT液晶顯示控制器 |
| 文件頁數(shù)： | 17/46頁 |
| 文件大?。?/td> | 322K |
| 代理商： | SD1210 |
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SmartASI C, I nc.
SD1210
appropriately scaled to the full screen, and the output signal is perfectly synchronized
with the input signals.
November, 1999
Revision B
SmartASIC Confidential
17
3.3.
Image scaling, interpolation and dithering block
The SD1210 supports both automatic image scaling and interpolation.
3.3.1.
Image scaling
The SD1210 supports several different input modes, and the input image may have
different sizes. It is essential to support automatic image scaling so that the input
image is always displayed to the full screen regardless the input mode. The SD1210
scales the images in both horizontal and vertical directions. It calculates the correct
scaling ratio for both directions based upon the LCD panel resolution and the input
mode and timing information produced by the “Input mode detection & auto
calibration” block. The scaling ratio is re-adjusted whenever a different input mode is
detected. The ratio is then fed to the buffer memory read control logic to fetch the
image data with the right sequence and timing. Some of the image data may be read
more than once to achieve the scaling effect.
3.3.2.
Image interpolation
The SD1210 supports image interpolation to achieve better image quality. A basic
image scaling algorithm replicates the input images to achieve the scaling effect. The
replication scheme usually results in a poor image quality. The SD1210 implements a
proprietary interpolation algorithm to improve the image quality. The programmable
interpolation is implemented with a 256-entry mapping table in the EEPROM to allow
system users to adjust the bi-linear interpolation parameters to control the sharpness
and smoothness quality of the image. In the default setting, the mapping table
contains a straight line of slope equal to 1, i.e. the data in entry N equal to the value
N. If the mapping table contains a line of slope equal to 2, then the output image will
be a bit sharper than the image generated by a table with the default setting. Through
an external microcontroller, users can chose among different interpolation algorithm.
3.3.3.
Dithering
The SD1210 supports 16.7 million true colors for a 6-bit panel. Two dithering
algorithms are implemented and users can chose between them through the external
microcontroller. The first one is area-based dithering, and the second one is a frame-
based frame modulation, which also is called frame rate control. Through the external
microcontroller, users can choose among different dithering algorithms.
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| SD-1210 | 功能描述:SWITCH ROTARY HEX 16-POS TOP RoHS:是 類別:開關(guān) >> DIP 系列:SD-1000 特色產(chǎn)品:RDM Series Rotary DIP Switch 標準包裝:70 系列:RDM 電路:十六進制 位置數(shù):16 觸點額定電壓:0.1A @ 42VDC 觸動器類型:用于工具旋轉(zhuǎn) 觸動器電平:凹槽式 安裝類型:通孔 方向:頂部觸動 可清洗:是 其它名稱:EG4977-5RDMAR16PIT |
| SD12-100 | 制造商:COOPER BUSSMANN 功能描述:Ind Power Shielded Wirewound 10uH 20% 100KHz Ferrite 938mA 2020 T/R |
| SD12-100-R | 功能描述:固定電感器 10uH 0.818A 0.2844ohms RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| SD12-101 | 制造商:COOPER BUSSMANN 功能描述:Ind Power Shielded Wirewound 100uH 20% 100KHz Ferrite 308mA 2020 T/R |
| SD12-101-R | 功能描述:固定電感器 100uH 0.273A 2.64ohms RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
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