Datasheet

For more information, please visit the product page.
rev.
DESCRIPTION: rotary encoder
PART NUMBER: EC208AB
ELECTRICAL SPECIFICATIONS
output waveform
output signals
current consumption
output voltage
Square wave
A, B phase
20 mA max.
Vcc ~ 0.5 V min.
0.7 V max.
-0.1 mA max.
3.3 V dc ± 5%
25
100 Hz
“H”
“L”
output current
supply voltage
output resolution (ppr)
frequency response
MECHANICAL SPECIFICATIONS
max shaft load, radial:
axial:
starting torque
rotational angle
maximum speed
rotational life
weight
1 kgf
1 kgf
0.4 ±0.2 N·cm max. (41 ±20 gf·cm max.)
360° continuous
240 RPM
1,000,000 cycles
20 g
ENVIRONMENTAL SPECIFICATIONS
operating temp
storage temp
humidity
vibration
shock
0° to +60° C
-20° to +80° C
85% RH, no condensation
10 ~ 55 Hz. 1.5 mm, 2 hours
50 G, 6 ms, 3 axes, 3 reps
ORDERING INSTRUCTIONS
EC208X025X
Detent:
A = Without detent
B = With detent
Termination options:
A = Solder holes
B = Connector
C = Cable
D = PC board mount
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383
page
1 of 2
date
08/2008
For more information, please visit the product page.
rev.
page
2 of 2
date
08/2008
DESCRIPTION: rotary encoder
PART NUMBER: EC208AB
OUTPUT CIRCUIT
OUTPUT WAVEFORM
(Clockwise rotation viewed from front)
INTERNAL CIRCUIT
EXTERNAL CIRCUIT
+3.3V (Pin 1)
Detent
Position
R1
A
R2
EC208X
R3
+3.3V
PI1
Ch B (Pin 2)
1
PI2
Ch A (Pin 3)
2
74HC14
Output B
74HC14
3
0V (Pin 4)
B
4
NC (Pin 5)
NC (Pin6)
MECHANICAL DRAWING
EC208X025A
20
10
Ø2
9.6
1
12.5
20
Ø6
8.5
10
M9 P=0.75
2
1.5
6-Ø1.0
6
Pin No. 1
7.1
20
10
EC208X025B
1
EC208X025D
9.6
1
PCB Footprint
20.4
6
2-Ø2.2
10
EC208X025C
1.8
3.5
2
11.2
JST:
B6B-PH-K-S
4.5
6-Ø1
AWG28
UL1007
JST: 6P-SAN
150
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383
Output A