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參數(shù)資料
| 型號： | LM9831 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| 中文描述： | LM9831 42位彩色，1200dpi的USB圖像掃描儀 |
| 文件頁數(shù)： | 12/41頁 |
| 文件大?。?/td> | 320K |
| 代理商： | LM9831 |
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HORIZONTAL RESOLUTION AND DATAMODE SETTINGS
09
Horizontal DPI Divider
This register determines the horizontal
resolution of the scan.
Scan resolution = Optical resolution divided
by the Horizontal_DPI_Divider.
0 0 0 ÷1
0 0 1 ÷1.5
0 1 0 ÷2
0 1 1 ÷3
1 0 0 ÷4
1 0 1 ÷6
1 1 0 ÷8
1 1 1 ÷12
Pixel Packing
This register determines how many bits in
each byte of data are transmitted to the host
when DataMode = 0
DataMode
When DataMode = 0, the pixel data is fully
processed, going through the Offset,
Shading, Horizontal DPI Adjust, Gamma,
and Pixel Packing blocks.
When DataMode = 1, 14 bit data is extracted
following the Shading Multiplier stage.
Gamma and any other post processing must
be done by the host.
0 0
0 1
1 0
1 1
1 bit/pixel (1 bit grayscale/3 bit color)
2 bits/pixel (2 bit grayscale/6 bit color)
4 bits/pixel (4 bit grayscale/12 bit color)
8 bits/pixel (8 bit grayscale/24 bit color)
1, 2, 4, or 8 bit image data,
as determined by the Pixel Size setting.
0
1
14 bit image data - sent in 2 bytes, MSB first:
First Byte: 13 12 11 10 09 08 07 06
Second Byte: 05 04 03 02 01 00 XX XX
(XX: bits set to 0)
RESERVED
0A
Reserved
0 0 0 0 0 0 0 0 Write 00 to this register
SENSOR CONFIGURATION
0B
Input Signal Polarity
0 Negative (Most CCD Sensors and Toshiba CIS)
1 Positive (Most CIS Sensors)
CDS Off
CDS On
Standard (1 pixels per period)
Even/Odd (2 pixels per period)
Off - use standard CCD Timing
CIS TR1 Timing Mode 1:
TR1 pulse = exactly one clock,
starting at rising edge of 1
CIS TR1 Timing Mode 2:
TR1 pulse = exactly one clock,
TR1 centered around 1 high.
N/A
Off: Normal operation
On: RS pulse held high for entire Optical Black period
CDS On/Off
0
1
Standard/Even-Odd Sensor
0
1
CIS TR1 Timing Mode
0 0
0 1
1 0
1 1
Fake Optical Black Pixels
(for Dyna-type CIS sensors)
0
1
Address
Function
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Value
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM9831CCVJDX | LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832CCVJD | LM9832 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832 | LM9832 42-Bit Color, 1200dpi USB Image Scanner |
| LM9833CCVJD | LM9833 48-Bit Color, 1200dpi USB Image Scanner |
| LM9833 | LM9833 48-Bit Color, 1200dpi USB Image Scanner |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM9831CCVJD | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| LM9831CCVJDX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9832 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832B-B WAF | 制造商:Texas Instruments 功能描述: |
| LM9832B-E WAF | 制造商:Texas Instruments 功能描述: |
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