Sharp IR3Y30M1, IR3Y30M Datasheet

IR3Y30M/M1

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1

DESCRIPTION

The IR3Y30M/M1 are bipolar single-chip signal processing ICs with built-in low-pass filter and delay line for B/W video cameras. They realize both downsizing and cost reduction of the finished set.

FEATURES

• Low power consumption : 265 mW (TYP.)

• Wide AGC range : –3 to +29 dB

• High speed sample-and-hold circuits : pulse width 15 ns (MIN.)

• Signal processing from CCD output to 75 $ video output is possible

• Built-in low-pass filter

• Built-in comparator for electronic exposure control

• Built-in aperture circuit and delay line

• Single +5 V power supply

• Packages – IR3Y30M : 48-pin QFP (QFP048-P-1010) – IR3Y30M1 : 48-pin QFP (QFP048-P-0707)

0.5 mm pin-pitch

IR3Y30M/M1

CCD Signal Processors for

B/W CCD Cameras

COMPARISON TABLE

IR3Y30M IR3Y30M1

Package 48-pin QFP (QFP048-P-1010) 48-pin QFP (QFP048-P-0707) Power consumption 725 mW 560 mW PD derating ratio 5.8 mW/˚C 4.5 mW/˚C Operating temperature –30 to +75 ˚C –30 to +70 ˚C

IR3Y30M/M1

2

1

48 47 4645 44 4342 41 4039 37

13 14 1516 17 1819 20 2122 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

CCD IN CLAMP BIAS IRIS GAMMA

WINDOW IRIS OUT

V

CC1

GND1

EE NR

SET NR

IRIS IN

SET UP

EE UP

AGC OUT LPF ADJ AMP

1 IN

C

1

AGC DET GND

2

GAMMA ADJ KNEE ADJ GAMMA OUT DL ADJ HAPA IN APA CTRL

SYNC

BLK CLP

BCLIP

V

CC2

VIDEO OUT

PEDESTAL

WCLIP

CLAMP

2

AMP2 OUT

GAIN CTRL

C3C2

PGND

FCDSFSPVCCCDS OUT

CLAMP1AGC OP IN

MAX GAIN

AGC OP OUT

AGC CTRL

VCVREF

38

48-PIN QFP

TOP VIEW

(QFP048-P-1010) (QFP048-P-0707)

PIN CONNECTIONS

IR3Y30M/M1

3

PGND

FS

5 V

CDS OUT AGC OP IN

AGC CTRL

VC

VREF LPF ADJ

AGC OUT AMP1 IN

AGC OP

OUT

CLAMP

1

PVcc

FCDS

CLAMP

WINDOW IRIS GAMMA

CLAMP H CLIP

AGC

OP AMP

S/H

FCDS FS

MAX GAIN

C1

GND2

AGC DET

CLP

BLK

GAMMA ADJ

KNEE ADJ

GAMMA OUT

DL ADJ

HAPA IN

APA CTRL

C

2

BCLIP

CLAMP

2

WCLIPPEDESTALBLK CLP

BLK

CLP

GND1Vcc1

EE UP

SET UP

IRIS IN

IRIS OUT BLK

SET NR

EE NR

WINDOW

IRIS GAMMA

CLAMP BIAS

CCD IN

CCD

Vcc

2

VIDEO OUT

SYNC

AMP2

OUT

GAIN

CTRL C3

VREF

LPF

AMP1

GAMMA

KNEE

CLEANING

CLAMP

+

–

AGC

DL

BASE

CLIP

+

–

+

–

+

–

+

–

AMP2

CLP

APA AMP

MIXCLAMP

W CLIP

SYNC

OUT

PULSE SEPA

PEDESTAL

SYNC

CLPBUFF

IRIS COMP

IRIS AMP

IRIS OP AMP

CLP

+

–

+

–

+

–

+

–

+

–

+–

39 38 37 35 36 34

33

31

32

30

29

28

27

26

25

414042434445464748

1

2

3

4

5

8

9

10

11

12

6 7 14 16 17 13 18 19 20 21 22 23 15 24

CLP

5 V5 V

BLK CLP

BLOCK DIAGRAM

IR3Y30M/M1

4

PIN DESCRIPTION

1 CCDIN

2.5 V

Input for the signal from CCD area sensor. 2.5 V bias applied internally.

PIN NO.

PIN NAME VOLTAGE

EQUIVALENT CIRCUIT DESCRIPTION

1

25 k

200

25 k 9 k

9 k

VCC1

GND

21 k

200

29 k 9 k

9 k

VCC1

GND

2

Feed through level of the input signal is clamped to this pin voltage.

2.9 V bias applied internally. Connect capacitor between this pin and GND.

2.9 V

CLAMP BIAS

2

3

IRIS GAMMA

3.1 V

Gamma adjustment of the exposure circuit. This pin is preset to 3.1 V, and gamma becomes 0.45 at open.

3

25 k

200

33.8 k 25 k 25 k

6.4 k

VCC1

GND

4

1 k

7 k

18.8 k

190 µ

VCC1

GND

Window pulse input for the exposure circuit. Outputs the signal while "H".

WINDOW4

20 k

50

1 k

5

VCC1

GND

Output for the exposure signal. Connect a resistor between this pin and GND.

2.3 V

IRIS OUT5

IR3Y30M/M1

5

6VCC1 Power supply for analog circuits.

PIN NO.

PIN NAME VOLTAGE EQUIVALENT CIRCUIT DESCRIPTION

Ground for analog circuits.GND

17

8 EE NR

Comparator output for electronic exposure control.

50 k

200

8

VCC1

GND

8

Input of the amplifier for electronic exposure control. This amplifier has 5 times gain.

IRIS IN

Low reference voltage input of the comparator for electronic exposure control.

SET UP

200

2 µ

VCC1

GND

High reference voltage input of the comparator for electronic exposure control.

SET NR9

12 EE UP

Output of the comparator for electronic exposure control.

200

50 k

12

VCC1

GND

13

5 k

40 µ

VCC1

GND

Synchronous signal input.

SYNC13

10

11

IR3Y30M/M1

6

14

BLK CLP

Composite pulse input. (pulse for optical black clamp and pulse for blanking)

PIN NO.

PIN NAME VOLTAGE

EQUIVALENT CIRCUIT DESCRIPTION

14

5 k

40 µ

5 k

VCC1

GND

15

5 k

40 µ



VCC1

GND

Adjustment for the base clip level in the aperture circuit. Eliminates the low-level noise of aperture signal. When opened, base clip is canceled.

BCLIP

15

16

V

CC2

Power supply for output amplifier circuits.

100

17

VCC2

GND

Video signal output. At 75 $ terminated : 1 Vp-p (Synchronous level 0.3 Vp-p)

1.5 V

VIDEO OUT

17

18

45 k

100 µ

5 k

VCC2

GND

Blanking level adjustment. 100 mV when opened.

2.5 V

PEDESTAL

18

IR3Y30M/M1

7

19

WCLIP 3.3 V

White clip adjustment. 120% when opened.

PIN NO.

PIN NAME VOLTAGE

EQUIVALENT CIRCUIT DESCRIPTION

19

35 k

100 µ50 µ

15 k

VCC2

GND

20

50 µ

5 k

VCC2

GND

Input for encoder circuit. Black level of input signal is clamped to 2.3 V.

2.3 VCLAMP

2

20

21

AMP2OUT

1.0 V

Output for the gain control amplifier.

21

1 m

100

50 µ

100

VCC1

GND

22

200 µ200 µ

10 k

1.8 k

39 k

VCC1

GND

Controls the output amplitude at pin No. 21. Gain is controlled in the range from 6 to 12 dB. It is approximately 10 dB when this pin is open.

2.5 V

GAIN CTRL

22

23

50 µ

3 p

5 k



VCC1

GND

Feedback clamp detector. Connect capacitor between this pin and GND.

1.8 VC

3

23