User Manual

5
3. PRODUCT SPECIFICATION
Electrical Characteristics
Symbol Parameter Min Typ Max Unit
+5
Sensor board supply voltage 4.5 5 5.5 V
Gnd
System Ground - - V
Sig
Signal output 0 5.3 V
V
low
Voltage during low stage (+5 = 5V) 0 0.8 1.0 V
V
high
Voltage during high stage (+5 = 5V) 4.5 4.7 4.9 V
f
Output frequency 0 1 KHz
I
on
Current at low state 25 30 40 mA
I
off
Current at high state 5 10 20 uA
T
OPR
Operating Temperature 0 25 75 °C
Truth Table in Normal Operating Condition (+5 = 5V)
Optical
sensor
Signal LED status
Comment
Unblocked 0V
ON
Low state at “Sig” output pin
Blocked 5V
OFF
High state at “Sig” output pin
* Blocked = The center space blocked by the slotted disc.