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Ver1.0
A1 PROs
1
A1 PROs
AI4402
Signal Processor for CCD Monochrome Camera
Description
The AI4402 is designed to perform the basic signal processing in CCD monochrome camera through a single chip. This bipolar IC is most suitable for compact usage and low power consumption.
Pin Configuration
SHP OP OUT AGC CONT Vcc1 AGC MAX DET OUT AGC OUT IN CLP LINEAR SYNC DRIVER IN GND2 GND1 DC CONT WC CONT SAG OUT OP IN+ OP INDATA SHD
PG
CLP2 GND3 IRIS IRIS CLP BLK CLP1 Vcc2 VIDEO
Feature
* Processing from CCD output to 75 O video output with a single chip * Wide variable AGC (1 to 32 dB Typ.) * Built-in operational amplifier for AGC loop * 75 O line capacitance minimized using sag compensation function * Variable white clip level realize wide dynamic range (140 IRE) * 32pin TQFP
AI4402
Application
CCD monochrome camera
32 PIN TQFP
(Top view)
Absolute Maximum Ratings (Ta = 25 E )
Symbol Vcc TSTG TOPR PD Parameter Supply Voltage Storage Temperature Operating Temperature Allowable Power Dissipation Rating 7 -65 ~ +150 -20 ~ +75 500 Unit V E E
N
Operating Conditions
Symbol Vcc Parameter Supply Voltage Rating 4.75 ~ 5.25 Unit V
Block Diagram
CLP2
25
SHP
24 S/H
SHD1
21 S/H S/H
AGC AGC AGC a a LP IN C MAX CONT OUT
14 16 12 11 10
OP OUT
17
DATA 22 GND3 26 IRIS 27 Vcc1 15 GND1 3
CLP2
BLK
CLP1
a 1
a 2
28
9
8
IRIS LINEAR CLP
OUT DRIVE IN
+
PG 23
CLP2
_ +
CLP1 BLK
NC
AGC
18 OP19 OP+ 13 DET OUT 31 VCC2
+ _
7 CLP1 WC
DC BLK SYNC DRIVE
32 VIDEO 1 2
SAG GND2
6
5
4
30
29
WC DC SYNC CLP1 BLK CONT CONT
1
AI4402
Pin Description
NO. Symbol I/O signal Equivalent circuit
10 U
Description
150 O
1
SAG
Inputs VIDEO OUT through capacitor
1
150 O 400 E
Input pin of sag compensation signal
6 U
2 3
GND2 GND1
* GND * GND
GND for driver and IRIS GND for other than driver and sample hold and IRIS
20 E 150 O
4
T
4
SYNC HI : 4.5V and above LO : 0.5V and below T:5 A
Sync pulse input pin (active at LO)
Dark clip level adjusting pin * GND 5 DC CONT * 2 to 3.5V
5
Turns to preset mode 1
150 O
Control mode
40 E
* Vcc
Turns to preset mode 2 White clip level adjusting pin
150 O
6
WC CONT
* GND
6
Preset mode
40 E
* 2 to 3.5V
Control mode
*External applied voltage
2
AI4402
NO.
Symbol
I/O signal
Equivalent circuit
Description
7
DRIVE IN
Inputs a UT O through capacitor or LINEAR
7
Input pin to driver
40 E
8
a OUT DC 2V
8
480 E
Gamma compensation signal output pin. Outputs a when 1 Pin 9 at OPEN outputs a when 2 Pin 9 turned to 5V
150 O
Linear signal ( a -OFF signal) output pin
9
LINEAR
DC 1.8V
9
480 E 15 E
* Vcc
Pin 8 output signal turns to a output 2
150 O
10
a CLP
10
150 O
Capacitor connecting pin for gamma input clamp
*External applied voltage
3
AI4402
NO.
Symbol
I/O signal
Equivalent circuit
Description
150 O
11
11
a IN
Input DC permissible range *DC2 to 3V
80 E
160 E
Input pin of the gamma compensation circuit
700 E
12
12
AGC OUT Vpp MAX 1300mV Vpp TYP 500mV DC 2.55V
Output pin of signal passed through AGC
13
DET OUT MAX 1500mV TYP 500mV DC 2V
320 E
13
Output pin of AGC detection signal
20 E 150 O
14
AGC MAX
* DC
14
Maximum gain setting pin of AGC amplifier
15
Vcc1
*5V
Power supply for other than driver and IRIS *External applied voltage
4
AI4402
NO.
Symbol
I/O signal
Equivalent circuit
Description
150 O
16
16
AGC CONT
* DC
120 E
Gain control pin of AGC amplifier
320 E
17
OP OUT
17
Output pin of the operational amplifier
150 O
18
18
OP IN20 E
Inverted input pin of the operational amplifier
150 O
19
OP IN+
19
20 E
Non inverted input pin of the operational amplifier (AGC detection signal input pin)
*External applied voltage
5
AI4402
NO.
20
Symbol
NC
I/O signal
Equivalent circuit
Description
T 100 E 150 O
21
SHD * HI : 4.5V and above LO : 0.5V and below T : 15ns and above
21
Input pin of the sample hold pulse (active at HI)
*
150 E
22
DATA * MAX 800mV MAX 800mV
22
CCD signal input pin
150 E *
23
23
PG * MAX 800mV MAX 800mV
CCD signal input pin
T 150 O
100 E
24
24
SHP * HI : 4.5V and above LO : 0.5V and below T : 15ns
Input pin of the sample hold pulse (active at HI)
*External applied voltage
6
AI4402
NO.
Symbol
I/O signal
T
Equivalent circuit
Description
100 E 150 O
25
CLP2
* HI : 4.5V and above LO : 0.5V and below T:2 A
25
CLP2 pulse input pin (active at HI)
26
GND3
*GND
Sample hold GND
27
IRIS DC 1.3V
320 E
27
Output pin of the IRIS control signal
150 O
28
28
IRIS CLP
150 O
Capacitor connecting pin for IRIS output clamp
T 40 E 150 O
29
BLK
29
* HI : 4.5V and above LO : 0.5V and below T : 11 A
BLK pulse input pin (active at LO)
*External applied voltage
7
AI4402
NO.
Symbol
I/O signal
T
Equivalent circuit
Description
50 E
150 O
30
CLP1
* HI : 4.5V and above LO : 0.5V and below T:2 A
30
CLP1 pulse input pin (active at HI)
31
Vcc2
* 5V
Driver and IRIS power supply
32
VIDEO BLK level 1.5V
32
VIDEO signal output pin
*External applied voltage
8
AI4402
Electrical Characteristics(Ta=25 E Vcc=5V,See Electrical Characteristics Test Circuit) ,
No. Symbol 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Icc MAX AG1 AG2 AG3 ADC a 1 a 2 LG DDC IG IDC DG SY DC1 DC2 DC3 DC4 WC1 WC2 WC3 OPL OPH Item Current consumption Min. value of AGC MAX Min. value of AGC CONT Max. value of AGC CONT AGC CONT 10dB AGC OUT DC a output level 1 a output level 2 LINEAR AMP GAIN DET OUT DC IRIS AMP GAIN IRIS OUT DC DRIVER GAIN SYNC level Dark clip 1 Dark clip 2 Min. value of DC CONT Max. value of DC CONT W-CLIP level Min. value of WC CONT Max. value of WC CONT OP AMP output D range Low level OP AMP output D range High level Conditions Current value of Vcc1 and Vcc2 AGC CONT = 1.5V GAIN between DATA input and AGC OUT DATA input = 100mV AGC MAX = 4V, AGC CONT = 1.5V GAIN between DATA input and AGC OUT DATA input = 500mV, AGC CONT = 5V GAIN between DATA input and AGC OUT DATA input = 30mV, AGC CONT =1.5V GAIN between DATA input and AGC OUT DATA input = 320mV, AGC CONT =3.55V DC output level of AGC OUT Test value of a output level 1 a input = 500mV IN Test value of a output level 2 a input = 500mV, S9 ON IN GAIN between a input level and LINEAR IN a input = 500mV IN DC output level of DET OUT GAIN between DATA input and IRIS DATA input = 300mV DC output level of IRIS GAIN between DRIVER IN and VIDEO DRIVER IN = 700mV SYNC level / DG* of VIDEO output Min Typ Max Unit 45 30 8 50 18 1 32 10 65 20 4 12 mA dB dB dB dB V
2.25 2.55 2.85
530 630 730 mV 580 680 780 mV 1.5 1.8 8 1.1 5.7 2.6 2.0 10 1.3 6.0 3.5 2.2 12 1.5 6.3 dB V dB V dB
270 293 316 mV
Dark clip level of preset mode 1 -15 0 15 mV Dark clip level / DG* of VIDEO output Dark clip level of preset mode 2 0 20 40 mV Dark clip level / DG* of VIDEO output Dark clip level / DG* of VIDEO output 3 5 mV DC CONT = 2V Dark clip level / DG* of VIDEO output 80 130 mV DC CONT = 3.3V W-CLIP level / DG* of VIDEO output DRIVER IN =1500mV, WC CONT = GND 780 820 860 mV W-CLIP level / DG* of VIDEO output - 300 600 mV DRIVER IN =1500mV, WC CONT =2.2V W-CLIP level / DG* of VIDEO output DRIVER IN =1500mV, WC CONT =3.3V 1000 1300 DC output level of OP OUT 0.8 1.2 OP IN+ = 2.5V, OP IN- = 4V DC output level of OP OUT 4.5 4.8 OP IN+ = 4V, OP IN- = 2.5V mV V V
*Characteristics value at DRIVER GAIN item
9
AI4402
Electrical Characteristics Test Circuit
5V 0.1
24 SHP 23 PG
5V 0.1
22 DATA 21 SHD 20 NC 19 OP IN+ 18 OP IN-
V
17 OP OUT
25 CLP2 26 GND3 V 27 IRIS 28 IRISCLP 29 BLK 30 CLP1
AGC CONT 16
(5V) 5V
A
VCC1 15 AGCMAX 14 DETOUT 13 AGCOUT 12 IN 11
(0V)
V V
0.01
5V
A 31 VCC2 GND2 GND1 SYNC 32 VIDEO DRIVERIN DC CONT WCCONT CLP 10 LINEAR 9 OUT
0.01
SAG
V
V
5V S9
1
2
3
4
5
6
7
8
0.01
V
(0V) (0V)
Note ) * is the capacitance unit of capacitor * For pins 5,6,14 and16 apply voltage in brackets unless otherwise specified in the conditions column of the electrical characteristics. * a indicate a test pin. (Test AC, DC voltage) * For Pins 7,11 and 22, the input signal level is at 0mV, unless otherwise specified in the conditions column of the Electrical Characteristics.
10
AI4402
Test Circuit I/O Waveform Diagram
Input pin 2.4V 22. DATA 11. IN 2.5V 7. DRIVER IN 2.7V 4. SYNC 5V 5s 0V 29. BLK 5V 0V 5V 30. CLP1 0V 2s 5V 25. CLP2 0V 15s 50s
Input level Input level
Input waveform
Input level
2s
Output pin Output waveform 8. 1, 2 OUT
Test
9. LINEAR
Test
12. AGC OUT
Test
13. DET OUT
Test
27. IRIS
Test
32. VIDEO
Test SYNC level
11
AI4402
Application Circuit
15V
100
KDS226
CCD
3.9K
10K
1K 5V
+
100K
22
2.7K
10K 1KVR
+
1M 0.1
24 SHP 23 PG 22 DATA
0.1 1i /16V 2K 5V 5V
0.1
21 SHD 20 NC 19 OP IN+ 18 OP IN17 OP OUT
2.2K 271p
25 CLP2 26 GND3
AGC CONT 16 VCC1 15
15K 33K
IRIS DET.
0.01
27 IRIS 28 IRISCLP 29 BLK
AGCMAX 14 DETOUT 13
AI4402
1K
AGCOUT 12 IN 11 CLP 10 DRIVERIN +
2.2K 5V
30 CLP
12 22p
220p
31 VCC2 GND2 GND1 SYNC 32 VIDEO + DC CONT WCCONT
1i /6.3
OUT LINEAR 9
100 /6.3V 75
+
1
SAG
2
3
4
5
6
7
8
5V 0.1 10 0.1
75 Video out.
Timing Gen. (Ai5412)
* Capacitance unit : F * Resistor unit :
12
AI4402
Characteristic Curve (Vcc=5V, Ta=25 C)
Fig.1 - AGC control characteristics Fig.2 - AGC MAX control characteristics
30 GAIN (dB) GAIN (dB) 20 10 0 -10 1 2 3 4 AGC CONT (V) 5
40 30 20 10 0 1 2 3 4 5 AGC MAX (V)
Fig.3B - 2 I/O characteristics
Fig.3A - 1 I/O characteristics
1000 1 output level (mV)
1000 2 output level (mV) 500 1000 IN input level (mV)
Fig.4 - White Clip control characteristics
500
500
0
0 500 1000 IN input level (mV)
Fig.5 - Dark clip control characteristics
1000 White clip level (mV) 800 600 400 0 1 2 3 4 WC CONT (V) 5 Set up level (mV)
Preset
50
Preset Preset
0 1 2 3 4 DC CONT (V) 5
13
AI4402
Package Outline
UNIT = mm
0.05 0.10 C 0.10 -C0.8BSC # 0.37+0.08
-0.07
9.00BSC
*7.0BSC
-A-
-B-
DATUM PLANE
(3.5)
8-121
"A"
v 0.20 C A-B D
-D(3.5) *7.0BSC 9.00BSC
DD
0.20 H A-B D 0.20 C A-B D
0.2MIN
-H-
(0.6375)
0.MIN
1.400.05
R
0-7
0.100.05
RO
0.60.15 1.00REF GAUGE PLANE
DETAIL " A "
Note ) 1. DIMENSION * MARK DOES NOT INCLUDE MOLD FLASH 2. DIMENSION # DOES NOT INCLUDE DAMBAR PROTRUSION 3. UNSPECIFIED IS ACCORDING TO JEDEC MO-136, VARIATION "BE"
0.09-0.2 0 0.25
(0.6375)
.08 MIN
20 -0. .08 O
14
D
1.50MAX
.

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