HEDS-9721#P51 Avago Technologies US Inc., HEDS-9721#P51 Datasheet - Page 3
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HEDS-9721#P51
Manufacturer Part Number
HEDS-9721#P51
Description
Encoders 2 Channel 1500CPR
Manufacturer
Avago Technologies US Inc.
Datasheet
1.HEDS-9721P51.pdf
(10 pages)
Specifications of HEDS-9721#P51
Number Of Channels
2
Mounting Style
PCB
Supply Voltage
5 V
Product
Optical
Technology
Linear
Termination Style
Solder Pin
Lead Free Status / RoHS Status
Lead free / RoHS 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