SHARP LR38580

LR38580
LR38580
Single-chip Driver IC for 270 k/320 k-pixel
B/W CCDs with Dual-power-supply Operation
DESCRIPTION
PIN CONNECTIONS
The LR38580 is a CMOS single-chip driver IC which
generates timing pulses for driving 270 k/320 kpixel B/W CCD area sensors with a dual-powersupply operation, synchronous pulses for TV
signals and processing pulses for video signals.
TOP VIEW
GND
TST6
FH1B
FH1
VDD
FH2
FH2B
FR
STSL
FCDS
FS
SMAX
48-PIN QFP
48 47 46 45 44 43 42 41 40 39 38 37
TST1 1
EEST 2
WIND 3
VRI 4
TST2 5
TST3 6
GND 7
VDD 8
CSYN 9
CBLK 10
OBCP 11
HBLK 12
FEATURES
• Designed for 270 k/320 k-pixel B/W CCD area
sensors with a dual-power-supply operation
• Switchable between EIA and CCIR modes
• Electronic shutter and EE control are possible
• Maximum shutter speed is selectable from
approx. 1/100 000 s, 1/56 000 s and 1/32 000 s
• Starting shutter speed is selectable from approx.
1/100 000 s and 1/1 000 s
• 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 :
48-pin QFP (QFP048-P-0707) 0.5 mm pin-pitch
36 EENR
35 EEUD
34 EEMD
33 VD
32 HD
31 GND
30 VDD
29 ACLX
28 TVMD
27 TST5
26 OSCO
25 OSCI
FLMD
MIR
VDD
V1
V2
V3
V4
TST4
GND
VTG
VDD12
OFD
13 14 15 16 17 18 19 20 21 22 23 24
(QFP048-P-0707)
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.
1
LR38580
EENR
EEUD
EEMD
VD
HD
GND
VDD
ACLX
TVMD
TST5
OSCO
OSCI
BLOCK DIAGRAM
36
35
34
33
32
31
30
29
28
27
26
25
SMAX 37
24 OFD
MIX
FS 38
FCDS 39
STSL 40
23 VDD12
22 VTG
21 GND
LEVEL
SHIFTER
1/2
MIX
FR 41
OSC
SHUTTER
SPEED
CONTROL
SHUTTER
UP/DOWN
CONTROL
H/L JUDGE
LEVEL
SHIFTER
20 TST4
19 V4
FH2B 42
18 V3
FH2 43
1/4
H COUNTER 2
DECODER
17 V2
VDD 44
16 V1
FH1 45
RESET
DECODER
15 VDD
FH1B 46
1/2
TST6 47
H COUNTER 1
V COUNTER
14 MIR
13 FLMD
2
EEST
WIND
VRI
TST2
TST3
7
8
9
10
11
12
HBLK
6
OBCP
5
CBLK
4
CSYN
3
VDD
2
GND
1
TST1
GND 48
LR38580
PIN DESCRIPTION
PIN NO. SYMBOL
1 TST1
2
EEST
I/O
ICD
ICU
POLARITY
PIN NAME
–
Test pin 1
–
Electronic exposure
DESCRIPTION
A test pin. Set open or to L level in the normal mode.
An input pin to control electronic exposure using EEUD
(pin 35) and EENR (pin 36).
control input 1
L level
H level or open
: Electronic exposure is stopped.
: Electronic exposure is operated.
An output pin for window pulse.
FLMD EEMD
L
L
ON
3
WIND
( )
N-ch
Open
WIND
H
L
L
H
WIND1 (vertical pulse)
H
H
WIND2 (composite pulse)
Window pulse output WIND1 : When connected to EEST (pin 2), the
operation of electronic exposure can be
Drain
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$).
ICSU
–
Vertical reset input
An input pin for resetting internal vertical counter.
The input pulse is VSYNC (negative polarity).
TST2
TST3
ICD
ICD
–
–
Test pin 2
Test pin 3
A test pin. Set open or to L level in the normal mode.
A test pin. Set open or to L level in the normal mode.
7
GND
–
–
Ground
A grounding pin.
8
VDD
–
–
Power supply
Composite
Supply of +5 V power.
9
CSYN
O
synchronizing pulse
output
An output pin of composite synchronous signal pulse.
10
CBLK
O
Composite blanking
pulse output
11
OBCP
O
Optical black clamp
pulse output
12
HBLK
O
Horizontal blanking
pulse output
4
VRI
5
6
An output pin of composite blanking pulse.
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
PIN NO. SYMBOL
I/O
POLARITY
PIN NAME
DESCRIPTION
An input pin to control electronic exposure mode, flickerless mode and WIND (pin 3) pulse output.
FLMD EEMD Electronic Shutter mode WIND
L
L
EIA : 1/60 s, CCIR : 1/50 s WIND1
Electronic exposure
13
FLMD
ICU
–
and WIND pulse
control input 1
H
L
L
H
EIA : 1/100 s, CCIR : 1/120 s WIND1
E/E operation
WIND1
H
H
E/E operation
WIND2
WIND 1 : Vertical pulse
WIND 2 : Composite pulse (vertical and horizontal)
An input pin to select mirror or normal image mode
L level
: Normal image mode
14
15
MIR
VDD
ICU
–
–
–
H level or open
Mirror mode
selection input
: Mirror image mode
MIR
FH1B
L (Normal mode)
∏ FH1
H or open (Mirror mode)
∏ FH2
FH2B
∏ FH2
∏ FH1
Power supply
Supply of +5 V power.
A pulse to drive vertical CCD shift register.
Connect to ØV1 pin of CCD.
16
V1
O4MA2
Vertical transfer
pulse output 1
17
V2
O4MA2
Vertical transfer
pulse output 2
A pulse to drive vertical CCD shift register.
Connect to ØV2 pin of CCD.
18
V3
O4MA2
Vertical transfer
A pulse to drive vertical CCD shift register.
19
V4
O4MA2
pulse output 3
Vertical transfer
Connect to ØV3 pin of CCD.
A pulse to drive vertical CCD shift register.
20
TST4
ICD
–
pulse output 4
Test pin 4
Connect to ØV4 pin of CCD.
A test pin. Set open or to L level in the normal mode.
21
GND
–
–
Ground
A grounding pin.
A pulse that transfers the charge of the photo-diode to
22
VTG
O12MHV
23
VDD12
–
24
OFD
Readout pulse
output
–
O12MHV
the vertical shift register.
Power supply
Connect to VTG pin of CCD.
Supply of +12.5 V power.
OFD pulse output
A pulse that sweeps the charge of the photo-diode for
the electronic shutter. 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 :
25
OSCI
OSCI
–
Clock input
TVMD
L
Frequency
19.0699 MHz (1 212 fH)
H
19.3125 MHz (1 236 fH)
fH = Horizontal frequency
4
LR38580
PIN NO. SYMBOL
I/O
POLARITY
PIN NAME
OSC3M
–
Clock output
Test pin 5
DESCRIPTION
An output pin for reference clock oscillation.
26
OSCO
27
TST5
ICD
–
28
TVMD
ICU
–
29
ACLX
ICU
–
All clear input
An input pin for resetting all internal circuits at power on.
Connect VDD through the diode and GND through the
30
31
VDD
GND
–
–
–
–
Power supply
Ground
Supply of +5 V power.
A grounding pin.
32
HD
O
Horizontal drive
pulse output
The pulse occurs at the start of every line.
33
VD
O
34
EEMD
ICU
–
35
EEUD
IC
–
36
EENR
IC
–
TV mode selection
The output is the inverse of OSCI (pin 25).
A test pin. Set open or to L level in the normal mode.
An input pin to select TV standards.
L level
H level or open
input
: EIA mode
: CCIR mode
capacitor.
Vertical drive pulse
output
Electronic exposure
and WIND pulse
control input 2
Electronic exposure
The pulse occurs at the start of every field.
An input pin to control electronic exposure mode, flickerless mode and WIND (pin 3) pulse output, used with
FLMD (pin 13).
An input pin to control electronic exposure.
EEUD EENR
H
L
control input 2
H
L
Electronic exposure
control input 3
H
H
Shutter Speed
up
control stopped
down
An input pin to control maximum and initial shutter
speed with STSL (pin 40).
37
SMAX
ICU
–
SMAX STSL Maximum speed
H
H
∏ 1/ 32 000
L
H
∏ 1/ 56 000
Shutter speed
control input 1
H
L
38
39
FS
FCDS
O4MA2
O4MA2
CDS pulse output 1
CDS pulse output 2
L
L
∏ 1/101 000
∏ 1/101 000
Initial Speed
∏ 1/ 1 000
∏ 1/ 1 000
∏ 1/ 1 000
∏ 1/101 000
A pulse to sample-hold the signal from CCD.
A pulse to clamp the feed-through level from CCD.
An input pin to control maximum and initial shutter
speed with SMAX (pin 37).
40
STSL
ICU
–
SMAX STSL Maximum Speed
H
H
∏ 1/ 32 000
L
H
∏ 1/ 56 000
Shutter speed
control input 2
H
L
5
L
L
∏ 1/101 000
∏ 1/101 000
Initial Speed
∏ 1/ 1 000
∏ 1/ 1 000
∏ 1/ 1 000
∏ 1/101 000
LR38580
PIN NO. SYMBOL
41
FR
I/O
PIN NAME
DESCRIPTION
A pulse to reset the charge of output circuit.
O4MA3
Reset pulse output
A pulse to drive horizontal CCD shift register.
Connect to ØH2B pin of CCD.
Connect to ØR pin of CCD through the DC offset circuit.
42
FH2B
O4MA2
Horizontal transfer
pulse output 2B
43
FH2
O4MA3
Horizontal transfer
pulse output 2
A pulse to drive horizontal CCD shift register.
Connect to ØH2 pin of CCD.
44
VDD
–
45
FH1
O4MA3
Power supply
Horizontal transfer
Supply of +5 V power.
A pulse to drive horizontal CCD shift register.
pulse output 1
Connect to ØH1 pin of CCD.
Horizontal transfer
pulse output 1B
A pulse to drive horizontal CCD shift register.
Connect to ØH1B pin of CCD.
Test pin 6
Ground
A test pin. Set open or to L level in the normal mode.
A grounding pin.
46
FH1B
O4MA2
47
48
TST6
GND
ICD
–
IC
ICU
ICD
ICSU
:
:
:
:
O
POLARITY
–
–
–
Input pin (CMOS level)
Input pin (CMOS level with pull-up resistor)
Input pin (CMOS level with pull-down resistor)
Input pin (CMOS schmitt-trigger level with pull-up
resistor)
: Output pin (VDD = 5 V)
O4MA2
O4MA3
O12MHV
ON
OSCI
OSC3M
6
:
:
:
:
:
:
Output pin (VDD = 5 V)
Output pin (VDD = 5 V)
Output pin (VDD12 = 12.5 V)
Output pin (N-ch open drain)
Input pin for oscillation
Output pin for oscillation
LR38580
SUPPLEMENTARY EXPLANATION
Shutter speed changes at electronic exposure control mode.
EIA
Charge Time
Shutter Speed
CCIR
Charge Time
Shutter Speed
0
262H or 263H
∏ 1/
60 s
1
•
252H + Ω
(by 10H step)
∏ 1/
62 s
0
312H or 313H
∏ 1/
50 s
1
•
302H + ß
(by 10H step)
∏ 1/
52 s
19
72H + Ω
∏ 1/
220 s
•
30
(by 4H step)
28H + Ω
24
72H + ß
∏ 1/
220 s
555 s
•
35
(by 4H step)
28H + ß
•
37
(by 2H step)
14H + Ω
∏ 1/
550 s
1 100 s
•
42
(by 2H step)
14H + ß
•
(by 1H step)
∏ 1/
1 090 s
•
(by 1H step)
44
•
7H + Ω
(by 0.5H step)
∏ 1/
2 140 s
49
•
7H + ß
(by 0.5H step)
∏ 1/
2 125 s
50
•
4H + Ω
(by 0.25H step)
∏ 1/
3 610 s
55
•
4H + ß
(by 0.25H step)
∏ 1/
3 590 s
62
•
1H + Ω
(by 0.125H step)
∏ 1/ 11 570 s
67
•
1H + ß
(by 0.125H step)
∏ 1/ 11 550 s
69
0.125H + Ω
∏ 1/ 32 450 s
74
0.125H + ß
∏ 1/ 32 690 s
70
71
0.280H
0.155H
∏ 1/ 56 090 s
∏ 1/101 430 s
75
76
0.275H
0.152H
∏ 1/ 56 800 s
∏ 1/102 720 s
No.
∏ 1/
∏ 1/
No.
Ω = 0.360H
ß = 0.353H
Select maximum shutter speed and initial shutter speed.
SMAX STSL
MAXIMUM SHUTTER SPEED (s)
Pin 37 Pin 40 Step
EIA
Step
CCIR
Step
INITIAL SHUTTER SPEED (s)
EIA
Step
CCIR
H
L
H
H
69
70
∏ 1/ 32 450
∏ 1/ 56 090
74
75
∏ 1/ 32 690
∏ 1/ 56 800
37
37
∏ 1/
∏ 1/
1 100
1 100
37
37
∏ 1/
∏ 1/
1 090
1 090
H
L
71
∏ 1/101 430
76
∏ 1/102 720
37
∏ 1/
1 100
37
∏ 1/
1 090
L
L
71
∏ 1/101 430
76
∏ 1/102 720
76
∏ 1/101 430
76
∏ 1/102 720
7
LR38580
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply voltage
Input voltage
SYMBOL
VDD
RATING
–0.3 to +6.0
UNIT
V
VDD12
VI
–0.3 to +15.0
V
–0.3 to VDD + 0.3
V
Output voltage
VO
VO12
–0.3 to VDD + 0.3
V
–0.3 to VDD12 + 0.3
V
Operating temperature
Storage temperature
TOPR
TSTG
–20 to +70
–55 to +150
˚C
˚C
ELECTRICAL CHARACTERISTICS
DC Characteristics
PARAMETER
Input "Low" voltage
(VDD = 5.0±0.5 V, VDD12 = 12.5±0.5 V, TOPR = –20 to +70 ˚C)
SYMBOL
VIL
CONDITIONS
MIN.
Input "High" voltage
Input "Low" voltage
VIH
VT+
3.5
Input "High" voltage
Hysteresis voltage
VT–
VT+ – VT–
1.0
0.2
TYP.
MAX.
1.5
UNIT
V
3.7
V
V
V
V
NOTE
1
2
Input "Low" current
|IIL5-1|
VI = 0 V
2.0
µA
Input "High" current
Input "Low" current
|IIH5-1|
|IIL5-2|
VI = VDD
VI = 0 V
2.0
60
µA
µA
Input "High" current
Input "Low" current
|IIH5-2|
|IIL5-3|
VI = VDD
VI = 0 V
2.0
2.0
µA
µA
Input "High" current
|IIH5-3|
VI = VDD
8.0
60
µA
VOL5-1
VOH5-1
IOL = 4 mA
IOH = –2 mA
0.4
4.0
V
V
6
IOL = 3 mA
IOH = –3 mA
0.4
4.0
V
V
7
0.4
V
V
8
0.4
V
0.5
V
V
0.4
V
V
1.0
µA
Output "Low" voltage
Output "High" voltage
Output "Low" voltage
VOL5-2
Output "High" voltage
VOH5-2
Output "Low" voltage
VOL5-3
Output "High" voltage
VOH5-3
IOL = 8 mA
IOH = –6 mA
8.0
4.0
Output "Low" voltage
VOL5-4
IOL = 12 mA
Output "High" voltage
Output "Low" voltage
VOH5-4
VOL12
IOH = –9 mA
IOL = 12 mA
4.0
Output "High" voltage
Output "Low" voltage
VOH12
VOL5-5
IOH = –12 mA
IOL = 4 mA
12.0
|IOZ5-5|
High-Z
Output leakage current
3
4
5
9
10
11
NOTES :
1.
2.
3.
4.
5.
6.
Applied
Applied
Applied
Applied
Applied
Applied
to
to
to
to
to
to
7. Applied to output (OSC3M). (Output (OSC3M) measures
on condition that input (OSCI) level is 0 V or VDD).
8. Applied to output (O4MA2).
9. Applied to output (O4MA3).
10. Applied to output (O12MHV).
11. Applied to output (ON).
inputs (IC, ICD, ICU, OSCI).
input (ICSU).
inputs (IC, OSCI).
inputs (ICU, ICSU).
input (ICD).
output (O).
8
PACKAGES FOR CCD AND CMOS DEVICES
PACKAGE
(Unit : mm)
48 QFP (QFP048-P-0707)
0.15±0.05
0.2±0.08
M
(1.0)
25
36
37
48
13
7.0±0.2
12
(1.0)
0.1±0.1
9
0.1
8.0±0.2
0.65±0.2
1.45±0.2
9.0±0.3
Package
base plane
1
(1.0)
(1.0)
7.0±0.2
0.08
24
9.0±0.3
0.5TYP.