參數(shù)資料
型號(hào)： LM9830VJD
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 消費(fèi)家電
英文描述： EuroDOCSIS 2.0 Diplexer Filter w/surge protection
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝： PLASTIC, TQFP-100
文件頁(yè)數(shù)： 1/45頁(yè)
文件大?。?/td> 566K
代理商： LM9830VJD
1
http://www.national.com
General Description
The LM9830 is a complete document scanner system on a sin-
gle IC. The LM9830 provides all the functions (CCD control, illu-
mination control, analog front end, pixel processing function
image data buffer/SRAM controller, microstepping motor control-
ler, and EPP parallel port interface) necessary to create a high
performance color scanner. The LM9830 scans images in 36 bit
color, and has output data formats for 36 bits, 30 bits, and 24
bits.
The only additional active components required are an external
SRAM for data buffering and power transistors for the stepper
motor. Parallel port pass-through requires two additional
TTL/CMOS logic ICs.
Applications
Color Flatbed Document Scanners
Color Sheetfed Document Scanners
Features
Scans at up to 6Mpixels/s (2M RGB pixels/sec).
Digital Pixel Processing provides 300, 200, 150, 100, 75, and
50 dpi horizontal resolution from 300dpi sensor, and 600, 400,
300, 200, 150, 100, 75, and 50 dpi horizontal resolution from
a 600dpi sensor.
Provides 50-600dpi vertical resolution in 1 dpi increments.
Pixel rate error correction for gain (shading) and offset errors.
Output formats include 12 bit linear, 10 bit linear with shading
and offset, or 8 bit gamma corrected, all with 12 bit accuracy.
Multiple CCD clocking rates allows matching of CCD clock to
Scanner Block Diagram
scan resolution and pixel depth for maximum scan speed.
Stepper motor control tightly coupled with buffer management
to maximize data transfer efficiency.
PWM stepper motor current control allows microstepping for
the price of fullstepping.
Supports 64k, 128k, or 256k x8 external SRAMs.
Parallel Port interface supports EPP PS2 (bidirectional), or
SPP (nibble) modes of operation.
Pixel depths of 1, 2, or 4 bits are packed into bytes for faster
scans of line art and low pixel depth images.
Supports 1 and 3 channel CIS and CCD devices.
3 (R, G, and B) user-programmable gamma correction tables.
Able to transmit an arbitrary range of pixels to speed up
scanning of smaller items (business cards, etc.) by zooming
in on a subset of CCD pixels.
Compatible with a wide range of color linear CCDs and
Contact Image Sensors (CIS)
Internal bandgap voltage reference.
100 pin TQFP package
Key Specifications
Analog to Digital Converter Resolution
Maximum Pixel Conversion Rate
A4 Color 150dpi scan (typical, EPP Interface)
A4 Color 300dpi scan (typical, EPP Interface)
A4 Color 600dpi scan (typical, EPP Interface) <160 seconds
Supply Voltage
Power Dissipation (typical)
12 Bits
6MHz
<10 seconds
<40 seconds
+5V±10%
350mW
LM9830 36-Bit Color Document Scanner
Buffer
To
Computer
To
Printer
D
D
CCD/CIS
Illumination
+24V
Stepper
Motor
1-3
1-3
2-6
9
2
8
Power
Transistors
SRAM
28
LM9830VJD
Ordering Information
Commercial (0°C
≤
T
A
≤
+70°C)
Package
LM9830VJD
VJD100A 100 Pin Thin Quad Flatpac
LM9830VJDX
VJD100A 100 Pin Thin Quad Flatpac, Tape & Reel
November 1998
L
N
1998 National Semiconductor Corporation
TRI-STATE is a registered trademark of National Semiconductor Corporation.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM9830VJD/NOPB 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 RoHS:否 制造商:Texas Instruments 輸入信號(hào)類(lèi)型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類(lèi)型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
LM9830VJDX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9830 36-Bit Color Document Scanner
LM9831 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9831 42-Bit Color, 1200dpi USB Image Scanner
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
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