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부품번호 | LF1401 기능 |
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기능 | 128 x 1 Linear Image Sensor | ||
제조업체 | Haus | ||
로고 | |||
전체 9 페이지수
iC-LF1401
128x1 Linear Image Sensor
FEATURES
o 128 active photo pixels of 56 µm at a 63.5 µm pitch (400 DPI)
o Integrating L-V conversion followed by a sample & hold circuit
o High sensitivity and uniformity over wavelength
o High clockrates of up to 5 MHz
o Only 128 clocks required for readout
o Shutter function enables flexible integration times
o Glitch-free analogue output
o Push-pull output amplifier
o 5 V single supply operation
o Can run off external bias to reduce power consumption
o Pin-to-pin compatible with TSL1401
Rev A3, Page 1/9
APPLICATIONS
o Optical line image sensors
o CCD substitute
PACKAGES
OLGA LF2C OBGA™ LF3C
Die size (8.5 mm x 1.6 mm)
BLOCK DIAGRAM
CLK
SI
DIS
Sample and Hold
Control
VCC
VDD
CONTROL AND SHIFT REGISTER
TP
NS
CQ
D
NQ
Bit 1
NS
CQ
D
NQ
Bit 2
CQ
D
NRNQ
Bit 3
CQ
D
NRNQ
Bit 127
CQ
D
NRNQ
Bit 128
NRCI
SNH
RPIX(1:128)
ACTIVE PIXELS
SNH128
RSET
REF
BIAS
Copyright © 2005 iC-Haus
Pixel 1
PIXOI
iC−LF
AGND
GND
Pixel 2
ONE
VHE
VHO
PIXEL
MULTIPLEXER
Pixel 128
PIXEI
OUTPUT
AMPLIFIER
AO
http://www.ichaus.com
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iC-LF1401
128x1 Linear Image Sensor
ABSOLUTE MAXIMUM RATINGS
Beyond these values damage may occur; device operation is not guaranteed.
Item Symbol Parameter
No.
Conditions
G001 VDD
Digital Supply Voltage
G002 VCC
Analog Supply Voltage
G003 V()
Voltage at SI, CLK, DIS, RSET, TP, AO
G004 I()
G005 Vd()
G006 Tj
G007 Ts
Current in RSET, TP, AO
ESD Susceptibility at all pins
Operating Junction Temperature
Storage Temperature Range
MIL-STD-883, Method 3015, HBM
100 pF discharged through 1.5 kΩ
see package specification
Rev A3, Page 4/9
Fig.
Min.
Max.
Unit
-0.3 6 V
-0.3 6 V
-0.3 VCC + V
0.3
-10 10 mA
2 kV
-40 125 °C
THERMAL DATA
Operating Conditions: VCC = VDD = 5 V ±10 %
Item Symbol Parameter
No.
Conditions
T01 Ta
Operating Ambient Temperature Range see package specification
(extended range on request)
Fig. Unit
Min. Typ. Max.
All voltages are referenced to ground unless otherwise stated.
All currents into the device pins are positive; all currents out of the device pins are negative.
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4페이지 iC-LF1401
128x1 Linear Image Sensor
DESCRIPTION OF FUNCTIONS
Rev A3, Page 7/9
Normal operation
Following an internal power-on reset the integration
and hold capacitors are discharged and the sample
and hold circuit is set to sample mode. A high signal
at SI and a rising edge at CLK triggers a readout cycle
and with it a new integration cycle.
In this process the hold capacitors of pixels 1 to 127
are switched to hold mode immediately (SNH = 1),
with pixel 128 (SNH128 = 1) following suit one clock
pulse later. This special procedure allows all pixels to
be read out with just 128 clock pulses. The integration
capacitors are discharged by a one clock long reset
signal (NRCI = 0) which occurs between the 2nd and
3rd falling edge of the readout clock pulse (cf. Figure
4). After the 127 pixels have been read out these are
again set to sample mode (SNH = 0), likewise for pixel
128 one clock pulse later (SNH128 = 0).
CLK
126 127 128 1 2 3 4 ...
127 128 1
2
SI
V(AO)
SNH
SNH128
NRCI
Pix126 Pix127 Pix128 Pix1
Pix2
Pix3
... Pix127 Pix128 Pix1
integration time pixel 1−127
integration time pixel 128
Figure 4: Readout cycle and integration sequence
If prior to the 128th clock pulse a high signal occurs
at SI the present readout is halted and immediately
reinitiated with pixel 1. In this instance the hold ca-
pacitors retain their old value i.e. hold mode prevails
(SNH/SNH128 = 0).
126 127 128 1 2 3 4 5 1 2 3 4 ... 128 1
2
CLK
SI
V(AO)
SNH
SNH128
NRCI
Pix126 Pix127 Pix128 Pix1
Pix2
Pix3
Pix4 Pix5 Pix1
Pix2 Pix3
Pix4
... Pix128 Pix1
Figure 5: Restarting a readout cycle
With more than 128 clock pulses until the next SI sig- output voltage tracks the voltage of the pixel 1 integra-
nal, pixel 1 is output without entering hold mode; the tion capacitor.
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7페이지 | |||
구 성 | 총 9 페이지수 | ||
다운로드 | [ LF1401.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
LF1401 | 128 x 1 Linear Image Sensor | Haus |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |