Datasheet

Driver circuit for InGaAs linear image sensor
C10820
Driver circuit for InGaAs linear image sensor
(G9494 series)
The C10820 is a driver circuit designed for the G9494 series high-speed InGaAs linear image sensors. The C10820 generates
clock signal and reset signal needed to drive the InGaAs linear image sensor, and amplifies and outputs the video signal of the
InGaAs linear image sensor while subtracting the offset from the video signal.
Features
Applications
Simple signal input operation (only digital signal inputs for
START and M-CLK pulses, and +5 V and +15 V power supplies required)
Control and data acquisition of InGaAs linear image sensor
(G9494 series)
High gain setting suitable for low-level-light
Compact size
Absolute maximum ratings (Ta=25 °C)
Parameter
Analog supply voltage
Digital supply voltage
Digital input voltage
Operating temperature*1
Storage temperature*1
Symbol
+VA
-VA
+VD
Topr
Tstg
Value
+18
-18
+7
+VD
0 to +50
-20 to +70
Unit
V
V
V
V
°C
°C
*1: No condensation
Specifications (Ta=25 °C)
Parameter
Analog supply voltage
Analog supply current
Digital supply voltage
Digital supply current
High level
Digital input
Low level
Start pulse width
Clock frequency
Digital rise/fall times
Date rate
VIDEO saturation output
Symbol
±VA
+IA
-IA
+VD
+ID
VIH
VIL
Tpwst
fM-CLK
tTLH/tTHL
fV
Vsat
Min.
±14.5
4.75
3.5
0
125
0.01
-
Typ.
±15.0
70*2/120*3
-30
5.0
3
2
14
2
-
Max.
±15.5
120*2/180*3
-40
5.25
5
5.5
1.5
4
25
4
4
Unit
V
mA
mA
V
mA
V
ns
MHz
ns
MHz
V
*2: When mounted with the G9494-256D
*3: When mounted with the G9494-512D
www.hamamatsu.com
1
Driver circuit for InGaAs linear image sensor
C10820
Block diagram
SW3: CF-SELECT
+5 VA
CH-SW
Vref
INP
InGaAs
image sensor
Vdd
+
+
+5 VA
VR1
+
GATE-SW
+5 VA
Regulator
-5 VA
Reference
voltage
generator
+
+
+15 V +5 V
+15 V
-15 V -15 V
VR2
+
Vss
VIDEO-E
VIDEO-O (VIDEO)
M-CLK
START
TRIGGER
EOS
Timing
generator
CLK-O ( CLK)
RESET-O (RESET)
TRIG-O (AD-TRIG)
Cf
CLK-E
TRIG-E
RESET-E
SW2: S-SELECT
+5 VA (512 ch)
(256 ch)
+
×1
VIDEO
×1~3
KACCC0496EA
Timing chart
G9494-256D
M-CLK
START
RESET*
4 M-CLK
4 M-CLK
12 M-CLK
Integration time
CLK-ODD*
1
2
(only CLK-ODD is output when used with G9494-256D)
4
8
O-1 O-2 O-3 O-4 O-5
O-253 O-254 O-255 O-256
VIDEO
1
EOS
2
3
4
5
253 254 255 256
TRIGGER
* Internal signal
M-CLK
START
KACCC0497EA
2
Driver circuit for InGaAs linear image sensor
C10820
G9494-512D
M-CLK
START
RESET*
Integration time
8 M-CLK
8 M-CLK
1
2
3
12 M-CLK
4
8
CLK-ODD*
CLK-EVEN*
O-1 O-2 O-3 O-4 O-5
E-1 E-2 E-3 E-4
O-253 O-254 O-255 O-256
E-253 E-254 E-255 E-256
VIDEO
1 2 3 4 5 6 7 8 9
505 506 507 508 509 510 511 512
EOS
TRIGGER
* Internal signal
M-CLK
START
KACCC0498EA
Note: When used with the G9494-256D, M-CLK equals CLK-ODD. When used with the G9494-512D, M-CLK is divided by 2, and CLK-ODD
and CLK-EVEN are generated with complementary timing and output while each is shifted by half the CLK period. This means that
the G9494-256D and 9494-512D operate at the same data rate when a same frequency M-CLK is input.
Dimensional outline (unit: mm, unless otherwise noted: ±0.3)
Dimensional outline (C10820, unit: mm)
85 ± 0.2
77
Sensor gain selection switch
Sensor selection switch
SW3
Offset adjustment trimmer
512 CH
SW2
11
256 CH
11
22
VR1
52
1
1
60 ± 0.2
VR2
12
J1 J2
J3
Circuit gain adjustment trimmer
(4 ×) 3.2
2.5
+0.2
7.6
7.8-0
5.1
+0.2
1.6-0.1
Height of
mounted
parts: 5 max.
J2 and J3 are used for G9494-256D.
J1 and J3 are used for G9494-512D.
KACCA00269EA
KACCA0269EA
3
Driver circuit for InGaAs linear image sensor
C10820
Pin assignment of I/O connector
15-pin D-sub connector socket type
8
7
15
6
14
5
13
4
12
3
11
2
10
1
9
KACCC0069EA
Pin no.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Terminal name
NC
Video data
VA1+ (+15 V)
VA1- (-15 V)
VD1 (+5 V)
Start
M-CLK
EOS
A.GND
A.GND
NC
D.GND
D.GND
D.GND
Trigger
I/O
O
I
I
I
I
I
O
O
Description
No connection
Analog video output signal: 0 to approx. 4 V
Analog power supply
Analog power supply
Digital power supply
Circuit initialization signal, H-CMOS compatible, positive logic
Circuit synchronization signal, H-CMOS compatible
Sensor end-of-scan signal, H-CMOS compatible, negative logic
Analog ground
Analog ground
No connection
Digital signal
Digital signal
Digital signal
For A/D conversion, H-CMOS compatible, positive logic
Connection
I/O connector: D-sub 15-pin type
Signal name
Pin no.
NC
1
A.GND
9
CH.1
VIDEO DATA
2
EXT.TRIG
A.GND
10
A.GND
+15 V
3
+15 V
NC
11
-15 V
-15 V
4
+5 V
D.GND
12
D.GND
+5 V
5
+5 V
D.GND
13
D.GND
START
6
Start
D.GND
14
D.GND
M-CLK
7
CLK
TRIGGER
15
A/D TRIG
Coaxial cable
Oscilloscope
Power supply
Ex: PW18-1T
made by
TEXIO CORPORATION
Pulse generator
C8225-01
made by HAMAMATSU
D.GND
EOS
8
VIDEO
Data processing board/PC
GND
KACCC0499EA
4
Driver circuit for InGaAs linear image sensor
C10820
Adjustment methods
O
Circuit DC offset adjustment: VR1
Use the VR1 trimmer to adjust the DC offset of the VIDEO signal. The active area of the InGaAs linear image sensor must be light-shielded
during this adjustment. Turn the trimmer clockwise to increase the offset, or turn it counterclockwise to reduce the offset. In either case,
adjust the offset so that the VIDEO signal becomes higher than GND.
O
Circuit gain adjustment: VR2
Use the VR2 trimmer to adjust the circuit gain according to the incident light level. Turn the trimmer clockwise to increase the gain, or turn
it counterclockwise to reduce the gain. Note that the DC offset also varies when the gain is changed by VR2, so readjustment to the circuit
DC offset might be required.
O
Sensor gain selection: SW3
The integration amplifiers in the InGaAs linear image sensor have a function to select the integration capacitance (Cf). This selection is done by
SW3 on the driver circuit. Switching SW3 to the left side selects the low gain, and switching it to the right side selects the high gain. The high
gain is approx. 8 times higher than the low gain. Please note that the VIDEO signal from the driver circuit becomes saturated at approx. 4 V.
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2010 Hamamatsu Photonics K.K.
www.hamamatsu.com
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 8152-375-0, Fax: (49) 8152-265-8
France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
Cat. No. KACC1171E01 Nov. 2010 DN
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