lr38580 Sharp Microelectronics of the Americas, lr38580 Datasheet

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lr38580

Manufacturer Part Number
lr38580
Description
Single-chip Driver K/320 K-pixel Ccds With Dual-power-supply Operation
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
DESCRIPTION
The LR38580 is a CMOS single-chip driver IC which
generates timing pulses for driving 270 k/320 k-
pixel B/W CCD area sensors with a dual-power-
supply operation, synchronous pulses for TV
signals and processing pulses for video signals.
FEATURES
• Designed for 270 k/320 k-pixel B/W CCD area
• Switchable between EIA and CCIR modes
• Electronic shutter and EE control are possible
• Maximum shutter speed is selectable from
• Starting shutter speed is selectable from approx.
• Flicker-less function
• Switchable between normal and mirror images
• External synchronization is possible
• Level shifter for readout and shutter pulses included
• Dual +5 V and +12.5 V power supplies
• Package :
LR38580
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in
catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
sensors with a dual-power-supply operation
approx. 1/100 000 s, 1/56 000 s and 1/32 000 s
1/100 000 s and 1/1 000 s
48-pin QFP (QFP048-P-0707) 0.5 mm pin-pitch
B/W CCDs with Dual-power-supply Operation
1
Single-chip Driver IC for 270 k/320 k-pixel
PIN CONNECTIONS
48-PIN QFP
OBCP
CSYN
EEST
WIND
CBLK
HBLK
TST
TST
TST
GND
VRI
V
DD
1
2
3
10
11
12
1
2
3
4
5
6
7
8
9
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
(QFP048-P-0707)
TOP VIEW
LR38580
36
35
34
33
32
31
30
29
28
27
26
25
EENR
EEUD
EEMD
VD
HD
GND
V
ACLX
TVMD
TST
OSCO
OSCI
DD
5

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lr38580 Summary of contents

Page 1

... LR38580 DESCRIPTION The LR38580 is a CMOS single-chip driver IC which generates timing pulses for driving 270 k/320 k- pixel B/W CCD area sensors with a dual-power- supply operation, synchronous pulses for TV signals and processing pulses for video signals. FEATURES • Designed for 270 k/320 k-pixel B/W CCD area sensors with a dual-power-supply operation • ...

Page 2

... TST 47 1/2 6 GND MIX SHUTTER SHUTTER UP/DOWN SPEED CONTROL CONTROL 1/2 1/4 H COUNTER 2 RESET DECODER H COUNTER LR38580 OFD LEVEL OSC 23 V DD12 SHIFTER 22 VTG 21 GND LEVEL 20 TST SHIFTER DECODER ...

Page 3

... A pulse to clamp the optical black signal. This pulse stays low during the absence of effective pixels within the vertical blanking. A pulse that corresponds to the cease period of the horizontal transfer pulse. 3 LR38580 DESCRIPTION : Electronic exposure is stopped. : Electronic exposure is operated. WIND WIND1 (vertical pulse) WIND2 (composite pulse) with R (≥ ...

Page 4

... Connect to OFD pin of CCD. Held at L level at normal mode. An input pin for reference clock oscillation. Connect to OSCO (pin 26) with R. The frequencies are as follows : Clock input TVMD LR38580 DESCRIPTION Electronic Shutter mode WIND L EIA : 1/60 s, CCIR : 1/50 s WIND1 L EIA : 1/100 s, CCIR : 1/120 s WIND1 H E/E operation ...

Page 5

... An input pin to control maximum and initial shutter speed with SMAX (pin 37). SMAX STSL Maximum Speed LR38580 DESCRIPTION : EIA mode : CCIR mode Shutter Speed up control stopped down Initial Speed ∏ 000 ∏ 000 ∏ 000 ∏ ...

Page 6

... A test pin. Set open level in the normal mode. A grounding pin. O4MA2 : Output pin (V O4MA3 : Output pin (V O12MHV : Output pin ( Output pin (N-ch open drain) OSCI : Input pin for oscillation OSC3M : Output pin for oscillation 6 LR38580 DESCRIPTION = 12.5 V) DD12 ...

Page 7

... Step CCIR Step 74 ∏ 690 37 75 ∏ 800 37 76 ∏ 1/102 720 37 76 ∏ 1/102 720 76 7 LR38580 CCIR Shutter Speed ∏ 302H + ß ∏ 72H + ß ∏ 1/ 220 s 28H + ß ∏ 1/ 550 s 14H + ß ∏ 090 ß ...

Page 8

... High-Z OZ5-5 7. Applied to output (OSC3M). (Output (OSC3M) measures on condition that input (OSCI) level Applied to output (O4MA2). 9. Applied to output (O4MA3). 10. Applied to output (O12MHV). 11. Applied to output (ON). 8 LR38580 UNIT ˚C ˚C = 12.5±0 –20 to +70 ˚C) OPR MIN ...

Page 9

PACKAGE 48 QFP (QFP048-P-0707) PACKAGES FOR CCD AND CMOS DEVICES 0.5 TYP. 0.2 ±0. (1.0) (1.0) ±0.2 ±0.2 7.0 0.65 1.45 ±0.2 9.0 ±0.3 9 (Unit : mm) 0.15 ±0.05 0.1 ±0.1 ...

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