Datasheet LR38580 Datasheet (Sharp)

DESCRIPTION

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.

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

PIN CONNECTIONS

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.

1

LR38580

Single-chip Driver IC for 270 k/320 k-pixel

B/W CCDs with Dual-power-supply Operation

1

48 47 46 45 44 43 42 41 40 39 38 37

13 14 15 16 17 18 19 20 21 22 23 24

2
3
4
5
6
7
8

9
10
11
12

36
35
34
33
32
31
30
29
28
27
26
25

TST

1

EEST
WIND

VRI

TST

2

TST3
GND

V

DD

CSYN

CBLK

OBCP

HBLK

EENR
EEUD
EEMD
VD
HD
GND
V

DD

ACLX
TVMD
TST

5

OSCO
OSCI

FLMD

MIR

V

DD

V1V2V3

V4

TST4

GND

VTG

V

DD12

OFD

GND

TST

6

FH1B

FH1

VDD

FH2

FH2BFRSTSL

FCDSFSSMAX

48-PIN QFP

TOP VIEW

(QFP048-P-0707)

LR38580

2

BLOCK DIAGRAM

EENR

EEUD

EEMD

VD

HD

GND

V

DD

ACLX

TVMD

TST5

OSCO

OSCI

TST

1

EEST

WIND

VRI

TST

2

TST3

GND

V

DD

CSYN

CBLK

OBCP

HBLK

OFD

V

DD12

VTG

GND

TST

4

VDD

MIR

FLMD

SMAX

FCDS

STSL

FH

2B

FH1B

TST6

GND

H/L JUDGE

SHUTTER
UP/DOWN
CONTROL

SHUTTER

SPEED

CONTROL

MIX

MIX

1/2

1/4

RESET

DECODER

DECODER

H COUNTER 2

V COUNTERH COUNTER 1

OSC

LEVEL

SHIFTER

LEVEL

SHIFTER

V

4

V3

V2

V1

FS

FR

FH

2

VDD

FH1

123456789101112

24

23

22

21

20

19

18

17

16

15

14

13

36

37

38

39

40

41

42

43

44

45

46

47

48

35 34 33 32 31 30 29 28 27 26 25

1/2

LR38580

3

PIN DESCRIPTION

PIN NO.

SYMBOL I/O

POLARITY

PIN NAME DESCRIPTION

1 TST

1 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 V

DD 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 TST

2 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.
8V

DD – – 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)

()

LR38580

4

PIN NO.

SYMBOL I/O

POLARITY

PIN NAME DESCRIPTION

13 FLMD ICU –

Electronic exposure
and WIND pulse
control input 1

An input pin to control electronic exposure mode, flicker­less mode and WIND (pin 3) pulse output.

WIND 1 : Vertical pulse
WIND 2 : Composite pulse (vertical and horizontal)

14 MIR ICU –

Mirror mode
selection input

An input pin to select mirror or normal image mode

L level : Normal image mode
H level or open : Mirror image mode

15 V

DD – – Power supply Supply of +5 V power.

16 V

1 O4MA2

Vertical transfer
pulse output 1

A pulse to drive vertical CCD shift register.
Connect to Ø

V1 pin of CCD.

17 V

2 O4MA2

Vertical transfer
pulse output 2

A pulse to drive vertical CCD shift register.
Connect to Ø

V2 pin of CCD.

18 V

3 O4MA2

Vertical transfer
pulse output 3

A pulse to drive vertical CCD shift register.
Connect to Ø

V3 pin of CCD.

19 V

4 O4MA2

Vertical transfer
pulse output 4

A pulse to drive vertical CCD shift register.
Connect to Ø

V4 pin of CCD.

20 TST4 ICD – Test pin 4 A test pin. Set open or to L level in the normal mode.
21 GND – – Ground A grounding pin.

22 VTG

O12MHV

Readout pulse
output

A pulse that transfers the charge of the photo-diode to
the vertical shift register.
Connect to VTG pin of CCD.

23 V

DD12 – – Power supply Supply of +12.5 V power.

25 OSCI OSCI – Clock input

An input pin for reference clock oscillation.
Connect to OSCO (pin 26) with R.
The frequencies are as follows :

fH = Horizontal frequency

24 OFD

O12MHV

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.

FLMD

EEMD

Electronic Shutter mode WIND

L

L

EIA : 1/60 s, CCIR : 1/50 s

WIND1

H

L

EIA : 1/100 s, CCIR : 1/120 s

WIND1

L

H

E/E operation

WIND1

H

H

E/E operation

WIND2

MIR L (Normal mode)

H or open (Mirror mode)

FH2B ∏ FH2 ∏ FH1

∏ FH2∏ FH1FH1B

TVMD

Frequency
L 19.0699 MHz (1 212 fH)
H 19.3125 MHz (1 236 fH)

LR38580

5

PIN NO.

SYMBOL I/O

POLARITY

PIN NAME DESCRIPTION

29 ACLX ICU – All clear input

An input pin for resetting all internal circuits at power on.
Connect V

DD through the diode and GND through the

capacitor.

30 V

DD – – Power supply Supply of +5 V power.

31 GND – – Ground A grounding pin.

32 HD O

Horizontal drive
pulse output

The pulse occurs at the start of every line.

33 VD O

Vertical drive pulse
output

The pulse occurs at the start of every field.

34 EEMD ICU –

Electronic exposure
and WIND pulse
control input 2

An input pin to control electronic exposure mode, flicker­less mode and WIND (pin 3) pulse output, used with
FLMD (pin 13).

35 EEUD IC –

Electronic exposure
control input 2

An input pin to control electronic exposure.

36 EENR IC –

Electronic exposure
control input 3

37 SMAX ICU –

Shutter speed
control input 1

An input pin to control maximum and initial shutter
speed with STSL (pin 40).

38 FS O4MA2 CDS pulse output 1 A pulse to sample-hold the signal from CCD.
39 FCDS O4MA2 CDS pulse output 2 A pulse to clamp the feed-through level from CCD.

40 STSL ICU –

Shutter speed
control input 2

An input pin to control maximum and initial shutter
speed with SMAX (pin 37).

EEUD

EENR

Shutter Speed

H

L

up

H

H

control stopped

L

H

down

SMAX STSL Maximum speed Initial Speed

H H ∏ 1/ 32 000 ∏ 1/ 1 000
L H ∏ 1/ 56 000 ∏ 1/ 1 000

L L ∏ 1/101 000 ∏ 1/101 000

H L ∏ 1/101 000 ∏ 1/ 1 000

SMAX STSL Maximum Speed Initial Speed

H H ∏ 1/ 32 000 ∏ 1/ 1 000
L H ∏ 1/ 56 000 ∏ 1/ 1 000

L L ∏ 1/101 000 ∏ 1/101 000

H L ∏ 1/101 000 ∏ 1/ 1 000

28 TVMD ICU –

TV mode selection
input

An input pin to select TV standards.

L level : EIA mode
H level or open : CCIR mode

27 TST

5 ICD – Test pin 5 A test pin. Set open or to L level in the normal mode.

26 OSCO OSC3M – Clock output

An output pin for reference clock oscillation.
The output is the inverse of OSCI (pin 25).

LR38580

6

PIN NO.

SYMBOL I/O

POLARITY

PIN NAME DESCRIPTION

41 FR O4MA3 Reset pulse output

A pulse to reset the charge of output circuit.
Connect to Ø

R pin of CCD through the DC offset circuit.

42 FH

2B O4MA2

Horizontal transfer
pulse output 2B

A pulse to drive horizontal CCD shift register.
Connect to Ø

H2B pin of CCD.

43 FH

2 O4MA3

Horizontal transfer
pulse output 2

A pulse to drive horizontal CCD shift register.
Connect to Ø

H2 pin of CCD.

45 FH

1 O4MA3

Horizontal transfer
pulse output 1

A pulse to drive horizontal CCD shift register.
Connect to Ø

H1 pin of CCD.

44 V

DD – – Power supply Supply of +5 V power.

46 FH

1B O4MA2

Horizontal transfer
pulse output 1B

A pulse to drive horizontal CCD shift register.
Connect to Ø

H1B pin of CCD.

47 TST

6 ICD – Test pin 6 A test pin. Set open or to L level in the normal mode.

48 GND – – Ground A grounding pin.

IC : Input pin (CMOS level)
ICU : Input pin (CMOS level with pull-up resistor)
ICD : Input pin (CMOS level with pull-down resistor)
ICSU : Input pin (CMOS schmitt-trigger level with pull-up

resistor)

O : Output pin (V

DD = 5 V)

O4MA2 : Output pin (V

DD = 5 V)

O4MA3 : Output pin (V

DD = 5 V)

O12MHV : Output pin (V

DD12 = 12.5 V)

ON : Output pin (N-ch open drain)
OSCI : Input pin for oscillation
OSC3M : Output pin for oscillation

LR38580

7

SUPPLEMENTARY EXPLANATION

Shutter speed changes at electronic exposure control mode.

Select maximum shutter speed and initial shutter speed.

EIA CCIR

No. Charge Time Shutter Speed No. Charge Time Shutter Speed

0 262H or 263H ∏ 1/ 60 s 0 312H or 313H ∏ 1/ 50 s
1 252H + Ω ∏ 1/ 62 s 1 302H + ß ∏ 1/ 52 s

• (by 10H step) • (by 10H step)

19 72H + Ω ∏ 1/ 220 s 24 72H + ß ∏ 1/ 220 s

• (by 4H step) • (by 4H step)

30 28H + Ω ∏ 1/ 555 s 35 28H + ß ∏ 1/ 550 s

• (by 2H step) • (by 2H step)

37 14H + Ω ∏ 1/ 1 100 s 42 14H + ß ∏ 1/ 1 090 s

• (by 1H step) • (by 1H step)

44 7H + Ω ∏ 1/ 2 140 s 49 7H + ß ∏ 1/ 2 125 s

• (by 0.5H step) • (by 0.5H step)

50 4H + Ω ∏ 1/ 3 610 s 55 4H + ß ∏ 1/ 3 590 s

• (by 0.25H step) • (by 0.25H step)

62 1H + Ω ∏ 1/ 11 570 s 67 1H + ß ∏ 1/ 11 550 s

• (by 0.125H step) • (by 0.125H step)
69 0.125H + Ω ∏ 1/ 32 450 s 74 0.125H + ß ∏ 1/ 32 690 s
70 0.280H ∏ 1/ 56 090 s 75 0.275H ∏ 1/ 56 800 s

Ω = 0.360H ß = 0.353H

71 0.155H ∏ 1/101 430 s 76 0.152H ∏ 1/102 720 s

SMAX STSL MAXIMUM SHUTTER SPEED (s) INITIAL SHUTTER SPEED (s)

Pin 37 Pin 40 Step EIA Step CCIR Step EIA Step CCIR

H H 69 ∏ 1/ 32 450 74 ∏ 1/ 32 690 37 ∏ 1/ 1 100 37 ∏ 1/ 1 090

L H 70 ∏ 1/ 56 090 75 ∏ 1/ 56 800 37 ∏ 1/ 1 100 37 ∏ 1/ 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

LR38580

8

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

DC Characteristics

(VDD = 5.0±0.5 V, VDD12 = 12.5±0.5 V, TOPR = –20 to +70 ˚C)

PARAMETER SYMBOL RATING UNIT

Supply voltage

V

DD –0.3 to +6.0 V

V

DD12 –0.3 to +15.0 V

Input voltage VI –0.3 to VDD + 0.3 V

Output voltage

V

O –0.3 to VDD + 0.3 V

Operating temperature T

OPR –20 to +70 ˚C

Storage temperature TSTG –55 to +150 ˚C

Input "Low" voltage V

IL 1.5 V

1

Input "High" voltage V

IH 3.5 V

Input "Low" voltage VT+ 3.7 V

2V

T– 1.0 V

Hysteresis voltage VT+ – VT– 0.2 V
Input "Low" current |I

IL5-1|VI = 0 V 2.0 µA

3

Input "High" current |I

IH5-1|VI = VDD 2.0 µA

Input "Low" current |IIL5-2|VI = 0 V 8.0 60 µA

4

Input "High" current |I

IH5-2|VI = VDD 2.0 µA

Output "High" voltage V

OH5-1 IOH = –2 mA 4.0 V

6

Output "Low" voltage VOL5-1 IOL = 4 mA 0.4 V

Output "High" voltage V

OH5-2 IOH = –3 mA 4.0 V

7

Output "Low" voltage VOL5-2 IOL = 3 mA 0.4 V

Output "High" voltage V

OH5-3 IOH = –6 mA 4.0 V

8

Output "Low" voltage VOL5-3 IOL = 8 mA 0.4 V

Output "High" voltage V

OH5-4 IOH = –9 mA 4.0 V

9

Output "Low" voltage V

OL5-4 IOL = 12 mA 0.4 V

Output "High" voltage V

OH12 IOH = –12 mA 12.0 V

10

Output "Low" voltage V

OL12 IOL = 12 mA 0.5 V

Output "Low" voltage V

OL5-5 IOL = 4 mA 0.4 V

11

Output leakage current |I

OZ5-5| High-Z 1.0 µA

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT NOTE

Input "High" voltage

V–0.3 to V

DD12 + 0.3VO12

µA8.0VI = VDD|IIH5-3|Input "High" current

µA2.0

60

V

I = 0 V|IIL5-3|Input "Low" current

5

NOTES :

1. Applied to inputs (IC, ICD, ICU, OSCI).

2. Applied to input (ICSU).

3. Applied to inputs (IC, OSCI).

4. Applied to inputs (ICU, ICSU).

5. Applied to input (ICD).

6. Applied to output (O).

7. Applied to output (OSC3M). (Output (OSC3M) measures
on condition that input (OSCI) level is 0 V or V

DD).

8. Applied to output (O4MA2).

9. Applied to output (O4MA3).

10. Applied to output (O12MHV).

11. Applied to output (ON).

PACKAGES FOR CCD AND CMOS DEVICES

9

36

25

37

48

121

0.15

±0.05

0.1

±0.1

9.0

±0.3

7.0

±0.2

7.0

±0.2

(1.0)(1.0)

(1.0)

(1.0)

0.5

TYP.

0.2

±0.08

9.0

±0.3

0.65

±0.2

1.45

±0.2

24

13

Package

base plane

8.0

±0.2

0.08

0.1

M

48 QFP (QFP048-P-0707)

PACKAGE (Unit : mm)