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參數資料
型號: LM9833
廠商: National Semiconductor Corporation
英文描述: LM9833 48-Bit Color, 1200dpi USB Image Scanner
中文描述: LM9833 48位彩色,1200dpi的USB圖像掃描儀
文件頁數: 18/42頁
文件大小: 547K
代理商: LM9833
18
www.national.com
55
Kickstart steps
(fullstepping mode)
Hold Current Timeout
n n n Motor gets maximum current for first n (0-7) full steps
Full step time units (1-31) (do not set to 0)
=CRYSTAL OUT/(256*n) (0 < n < 256)
=CRYSTAL OUT/(256*256) (n = 0)
n n n n n n = minimum of n/64 (default = 0)
n n n n n
56
Stepper Motor PWM Frequency
n n n n n n n n
57
Stepper Motor PWM Set Duty Cycle
PAPER SENSE SETTINGS
58
PAPER SENSE 1: Polarity
0 A low input on PAPER SENSE 1 is True
1 A high input on PAPER SENSE 1 is True
Level sensitive: PAPER SENSE 1 State bit (in Status
Register) is set to a 1 if PAPER SENSE 1 is currently
True.
Edge sensitive: PAPER SENSE 1 State bit (in Status
Register) is set to a 1 if PAPER SENSE 1 has been
True since the last time the Status Register was read.
Transitions on PAPER SENSE 1 will not clear the
command register.
A False-to-True transition on PAPER SENSE 1 will
clear the Command Register and stop the scan.
A low input on PAPER SENSE 2 is True
A high input on PAPER SENSE 2 is True
Level sensitive: PAPER SENSE 2 State bit (in Status
Register) is set to a 1 if PAPER SENSE 2 is currently
True.
Edge sensitive: PAPER SENSE 2 State bit (in Status
Register) is set to a 1 if PAPER SENSE 2 has been
True since the last time the Status Register was read.
The scan will automatically stop after scanning for the
number of fullsteps specified in the
Step Counter
(registers 4C and 4D). (The fullsteps moved during
the “FastFeed At Start of scan period are not
counted.) If the value in the
Step Counter
is 0, the
scan can only be stopped by writing a 0 to register 07.
A False-to-True transition on PAPER SENSE 2 will
stop a scan or a High Speed Forward command after
the number of fullsteps specified in the
Step Counter
(registers 4C and 4D). It will not stop a High Speed
Reverse, and therefore should not be used as a home
position sensor input.
PAPER SENSE 1: Level/Edge sensitive
0
1
PAPER SENSE 1: Stop Scan, High Speed
Forward, and High Speed Reverse
Use this input for the home sensor in flatbed
scanners.
0
1
PAPER SENSE 2: Polarity
0
1
PAPER SENSE 2: Level/Edge sensitive
0
1
PAPER SENSE 2: Stop Scan and High
Speed Forward
0
1
Address
Function
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Value
Register Listing
(Continued)
L
相關PDF資料
PDF描述
LM98501CCVBH 10-Bit, 27 MSPS Camera Signal Processor
LM98501 10-Bit, 27 MSPS Camera Signal Processor
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相關代理商/技術參數
參數描述
LM9833B-F WAF 制造商:Texas Instruments 功能描述:
LM9833CCVJD 制造商:Texas Instruments 功能描述:USB Image Scanner 100-Pin TQFP
LM9833CCVJD NOPB 制造商:Texas Instruments 功能描述:Bulk
LM9833CCVJD/NOPB 功能描述:視頻模擬/數字化轉換器集成電路 RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型: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
LM98501 制造商:NSC 制造商全稱:National Semiconductor 功能描述:10-Bit, 27 MSPS Camera Signal Processor
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