C9068_07 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – Digital output for connection with PC

MODULE
PSD signal processing circuit
C9068, C9069
Digital output for connection with PC
C9068 (for one-dimensional PSD) and C9069 (for pin-cushion type two-dimensional PSD) are DC signal processing circuits specifically
designed for position measurement using PSD. Digital output allows direct connection with a personal computer through a serial (RS-232C)
interface. C9068 and C9069 are capable of detecting accurate positions of a spot light regardless of light intensity.
A D/A conversion signal is also output for monitoring, and when a voltmeter is connected to this D/A conversion output, the output voltage value
directly represents position data. (Output voltage represents the distance from the center of PSD. 1 V=1 mm)
Features
l Digital output
l Serial (RS-232C) connection with PC
l D/A conversion signal output for monitoring
l Easy handling due to single +12 V supply operation
l No complicated adjustment required
Applications
l Displacement measurement using PSD
l Testing using PSD
l PSD performance evaluation
s Absolute maximum ratings
Parameter
Symbol
Value
Unit
Supply voltage
Vcc Max.
+18
V
Operating temperature *¹
Topr
0 to +40
°C
Storage temperature *¹
Tstg
-10 to +60
°C
*1: No condensation
s Electrical and optical characteristics (Ta=25 °C, Vcc=+12 V)
Parameter
Conversion impedance
Symbol
Min.
Tz
-
Typ.
1 × 10⁵
Max.
Unit
-
V/A
Feedback capacitance
Cf
-
100
-
pF
Input signal current *^{2 C9068}
IIN
C9069
1 × 10^-5
1 × 10^-5
-
-
9 × 10^-5
A
9 × 10^-5
A
Signal conversion time *³
Tr
5
-
-
ms
Digital output format
-
Conform s to RS-232C (position signal, light level m onitor output) 12-bit
-
D/A conversion output amplitude
Vo
-10
-
+10
V
Supply voltage
Vcc
+9
+12
+18
V
Current consumption
Icc
-
200
-
mA
*2: Photocurrent Isc (total input signals) from PSD mounted on the C9068 or C9069 circuit board.
*3: Output response time versus spot light position change.
s Combination with PSD
The following PSDs can be used by soldering the PSD leads to the through-hole terminals on the circuit board.
Note: PSDs sold separately.
PSD
Compatible PSD
signal processing circuit
Type
Type No.
C9068
C9069
One-dimensional PSD
S3979 *⁴, S3931, S3932, S1352, S3270 *⁴
Pin-cushion type two-dimensional PSD S1880, S1881 *⁴, S2044, S5990-01 *⁵, S5991-01 *⁵
*4: These PSDs cannot be directly mounted on the circuit board. Connect to the through-hole terminals at the edge of the circuit
board by external wiring.
*5: An attachment board should be used.
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