HEDS-9721#L51 Avago Technologies US Inc., HEDS-9721#L51 Datasheet - Page 3
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HEDS-9721#L51
Manufacturer Part Number
HEDS-9721#L51
Description
Encoders 2 Channel 120CPR
Manufacturer
Avago Technologies US Inc.
Type
Optical Encoderr
Datasheet
1.HEDS-9721L51.pdf
(10 pages)
Specifications of HEDS-9721#L51
Detents
No
Motion
Linear
Number Of Channels
2
Mounting Style
Through Hole
Index Output
Not Indexed
Encoder Signal
Digital
Built In Switch
No
Shaft Style
Not Required
Shaft Diameter (mm)
Not Requiredmm
Operating Supply Voltage (typ)
5VDC
Operating Temperature Min Deg. C
-40C
Operating Temperature Max Deg. C
85C
Terminal Type
PC Pins
Termination Style
Solder Pin
Supply Voltage
5 V
Product
Optical
Size / Dimension
11 mm
Technology
Linear
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Output Waveforms
Definitions
Count (N) = The number of bar and window pairs or
counts per revolution (CPR) of the codewheel, or the
number of lines per inch of the codestrip (LPI).
Absolute Maximum Ratings
3
Storage Temperature
Operating Temperature
Supply Voltage
Output Voltage
Output Current per
Channel
Soldering Temperature
1 Shaft Rotation = 360
Parameter
1 cycle (c) = 360 electrical
S1
P
= N cycles
= 1 bar and
mechanical
degrees
degrees (°e)
window pair
ф
S2
ROTATION
C
S3
Symbol
V
V
T
T
I
O
CC
A
S
O
S4
Min.
-0.5
-0.5
-1.0
-40
-40
Max.
260
CHANNEL B
V
CHANNEL A
85
85
7
5
CC
Units
mA
°C
°C
°C
V
V
Pulse Width (P): The number of electrical degrees that
an output is high during one cycle. This value is nomi-
nally 180°e or 1/2 cycle.
Pulse Width Error ('P): The deviation, in electrical de-
grees, of the pulse width from its ideal value of 180°e.
State Width (S): The number of electrical degrees be-
tween a transition in the output of channel A and the
neighboring transition in the output of channel B. There
are 4 states per cycle, each nominally 90°e.
State Width Error ('S): The deviation, in electrical de-
grees, of each state width from its ideal value of 90°e.
Phase (I): The number of electrical degrees between the
center of the high state of channel A and the center of
the high state of channel B. This value is nominally 90°e
for quadrature output.
Phase Error ('I): The deviation of the phase from its
ideal value of 90°e.
Direction of Rotation: When the codewheel rotates
counterclock wise, as viewed looking down on the mod-
ule (so the marking is visible), channel A will lead chan-
nel B. If the codewheel rotates in the opposite direction,
channel B will lead channel A.
Optical Radius (Rop): The distance from the codewheel’s
center of rotation to the optical center (O.C.) of the
encoder module.
See Note
See Note
t ≤5 sec.
Notes