參數(shù)資料
型號: QEDS-9871
英文描述: Small Optical Encoder Modules
中文描述: 小型光學(xué)編碼器模塊
文件頁數(shù): 4/12頁
文件大?。?/td> 283K
代理商: QEDS-9871
4
Encoding Characteristics
Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances.
These characteristics do not include codewheel/codestrip contributions.
Case 1
Max.
Case 2
Max.
Parameter
Symbol
Typ.
Units
Notes
Pulse Width Error
P
S
φ
7
30
40
°
e
°
e
°
e
Logic State Width Error
5
30
40
Phase Error
2
10
15
Case 1: Module mounted on tolerances of
±
0.13 mm (0.005"). Case 2: Module mounted on tolerances of
±
0.25 mm (0.010")
Note:
See Figures in Mounting Considerations for details on Case 1 and Case 2 mounting tolerances.
Recommended Operating Conditions
Parameter
Symbol
Min.
Max.
Units
Notes
Temperature
Τ
40
85
°
C
Supply Voltage
V
CC
C
L
4.5
5.5
V
Ripple < 100 mV
p-p
3.2 k
pull-up
Load Capacitance
100
pF
Count Frequency
20
kHz
(Velocity (rpm) x N)/60
Note:
The module performance is guaranteed to 20 kHz but can operate at higher frequencies. Contact factory for more information.
Electrical Characteristics
Electrical Characteristics over Recommended Operating Range, Typical at 25
°
C.
Parameter
Symbol
Min.
Typ.
Max.
Units
Notes
Supply Current
I
CC
V
OH
V
OL
17
40
mA
High Level Output Voltage
2.4
V
I
OH
= -40
μ
A
I
OL
= 3.2 mA
C
L
= 25 pF, R
L
= 11 k
C
L
= 25 pF, R
L
= 11 k
Low Level Output Voltage
0.4
V
Rise Time
t
r
200
ns
Fall Time
t
f
50
ns
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