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LR38580 Datasheet(PDF) 3 Page - Sharp Electrionic Components

Part No. LR38580
Description  Single-chip Driver IC for 270 k/320 k-pixel B/W CCDs with Dual-power-supply Operation
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Maker  SHARP [Sharp Electrionic Components]
Homepage  http://sharp-world.com/
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LR38580 Datasheet(HTML) 3 Page - Sharp Electrionic Components

   
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LR38580
3
PIN DESCRIPTION
PIN NO. SYMBOL
I/O
POLARITY
PIN NAME
DESCRIPTION
1
TST1
ICD
Test pin 1
A test pin. Set open or to L level in the normal mode.
2
EEST
ICU
Electronic exposure
control input 1
An input pin to control electronic exposure using EEUD
(pin 35) and EENR (pin 36).
L level
: Electronic exposure is stopped.
H level or open
: Electronic exposure is operated.
3
WIND
ON
N-ch
Open
Drain
Window pulse output
An output pin for window pulse.
WIND1 : When connected to EEST (pin 2), the
operation of electronic exposure can be
stopped at the upper side of monitor.
WIND2 : A pulse that picks out the center of CCD output.
At this time, set H level or open at EEST (pin 2).
As the output circuit of WIND is N-ch open
drain, connect to VDD with R (≥ 47 k$).
4
VRI
ICSU
Vertical reset input
An input pin for resetting internal vertical counter.
The input pulse is VSYNC (negative polarity).
5
TST2
ICD
Test pin 2
A test pin. Set open or to L level in the normal mode.
6
TST3
ICD
Test pin 3
A test pin. Set open or to L level in the normal mode.
7
GND
Ground
A grounding pin.
8VDD
Power supply
Supply of +5 V power.
9
CSYN
O
Composite
synchronizing pulse
output
An output pin of composite synchronous signal pulse.
10
CBLK
O
Composite blanking
pulse output
An output pin of composite blanking pulse.
11
OBCP
O
Optical black clamp
pulse output
A pulse to clamp the optical black signal. This pulse
stays low during the absence of effective pixels within
the vertical blanking.
12
HBLK
O
Horizontal blanking
pulse output
A pulse that corresponds to the cease period of the
horizontal transfer pulse.
FLMD EEMD
WIND
L
L
WIND1 (vertical pulse)
H
L
L
H
H
H
WIND2 (composite pulse)
()


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