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AEDR-8320-1Q2

P1-P3P4-P6P7-P9P10-P11
4
Test Parameter Definitions
Name Symbol Denition
State Width S1, S2, S3, S4 The number of electrical degrees between a transition in channel A and the neigh-
boring transition in channel B. There are 4 states per cycle, each nominally 90°e.
The transitions are determined by where the analog signal crosses the 2.5 V voltage
level.
State Width Error
DS
1
, DS
2
, DS
3
,
DS
4
The deviation, in electrical degrees, of each state width from its ideal value
of 90°e.
Pulse Width P
A
, P
B
The number of electrical degrees that an analog output is greater than 2.5 V during
one cycle. This value is nominally 180°e or 1/2 cycle.
Pulse Width Error
DP
A
, DP
B
The deviation, in electrical degrees, of each pulse width from its ideal value
of 180°e.
State X Width SX
1
, SX
2
, SX
3
,
SX
4
The number of electrical degrees between a transition in channel A and neighboring
transition in channel B. There are 4 states per cycle, each nominally 90°e.
The transitions are determined by where the channel A analog signal crosses with
channel B (or its complimentary) signal.
State X Width Error
DSX
1
, DSX
2
,
DSX
3
, DSX
4
The deviation, in electrical degrees of each state X width from its ideal value of 90°e.
Pulse X Width P
XA
, P
XB
Pulse X width A is the number of electrical degrees that analog A output is greater
than analog B output during one cycle.
Pulse X width B is the number of electrical degrees that analog B output is greater
than analog A during one cycle.
These value are nominally 180°e or 1/2 cycle.
Pulse X Width Error
DP
XA
, DP
XB
The deviation, in electrical degrees of each pulse X width from its ideal value of 180°e.
Analog Peak-to-Peak V
PP
The peak-to-peak signal magnitude in V of the analog signal.
Analog Oset V
OFFSET
The oset in mV from the mid-point of the analog peak-to-peak signal to the zero
voltage point.
Analog Peak Voltage V
PA
, V
PB
V
MA
, V
MB
The value in V of the peak and valley of the analog signal (i.e., one-sided reading).
Analog Peak to Peak
Voltage
V
PPA
, V
PPB
The absolute dierence between V
P
and V
M
of channel A or B.
Analog Crosspoint
Voltage
Vx12, Vx34
Vx56, Vx78
The intersections in V of channel A analog waveform with that of either channel B or
its component.
Analog Oset Voltage V
OFFSETA
, V
OFF-
SETB
The oset in mV from the mid-point of the analog peak to peak signal to 2.5 V.
Linearity Error
DLinearity
Ration (in percentage) of maximum voltage deviation from a straight line connecting
adjacent upper and lower crosspoint voltages to the dierence between crosspoint
voltages.
5
Absolute Maximum Ratings
Parameter Symbol Min. Max. Units Notes
Storage Temperature T
S
-40 85 °C
Operating Temperature T
A
-40 85 °C
Supply Voltage (Detector) V
CC
-0.5 7 V
Output Voltage Va , Vb -0.5 Vcc + 0.4 V
DC Forward Current (LED) I
LED
40 mA V
F
< 3 V
Reverse Voltage V
R
5 V I
R
= 100 µA
Note:
1. Exposure to extreme light intensity (such as from flashbulbs or spotlights) may cause permanent damage to the device.
2. CAUTION: It is advised that normal static precautions should be taken when handling the encoder in order to avoid damage and/or
degradation induced by ESD.
3. Proper operation of the encoder cannot be guaranteed if the maximum ratings are exceeded.
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Units Notes
Operating Temperature T -40 25 85 °C
Supply Voltage (Detector) V
CC
4.75 5.0 5.25 V Ripple < 100 mV Vpp
Output Frequency F NA 5 20 kHz (Velocity (rpm) x N)/60
DC Forward Current (LED) I
LED
16 20 30 mA See note 1
Note:
1. LED Current Limiting Resistor
A resistor to limit current to the LED is required.
For 3.3 V LED Supply Voltage: The recommended value series resistor is 47 Ω (±10%).
For 5.0 V LED Supply Voltage: The recommended resistor value will be 110 Ω (±10%).
This will result in an LED current of approximately 20 mA.
Electrical Characteristics
Characteristics over recommended operating conditions at 25°C.
Parameter Symbol Min. Typical Max. Units Notes
Supply Current (Detector) I
CC
NA 5 8 mA
LED Forward Voltage V
F
NA 2.6 3.0 V I
F
= 20 mA typical
6
Encoding Characteristics
Encoding characteristics over the recommended operating condition and mounting conditions.
Parameter Symbol Max. Unit
State Width Error
DS
±40 °e
Pulse Width Error
DP
±40 °e
State X Width Error
DS
X
±40 °e
Pulse X Width Error
DP
X
±40 °e
Parameter Symbol Min. Typ. Max. Unit
Peak to Peak Voltage (Average) V
PPA
, V
PPB
0.8 1.5 3.0 V
Analog Oset Voltage V
OFFSETA
, V
OFFSETB
-350 NA 350 mV
Linearity Error ∆Linearity NA 5.0 12.5 %
Note: Typical values represent the encoder performance at typical mounting alignment, whereas the maximum values represent the encoder
performance across the range of recommended mounting tolerance.
Part Mounting Tolerances
Min. Typ. Max. Units
Radial Misalignment from Nominal -0.2 0 0.2 mm
Tangential Misalignment from Nominal -0.2 0 0.2 mm
Gap Distances Between Codewheel and Detector IC 0.8 1.5 2.0 mm
Angular Misalignment -1 0 1 deg
P1-P3P4-P6P7-P9P10-P11

AEDR-8320-1Q2

Mfr. #:
Buy AEDR-8320-1Q2
Manufacturer:
Broadcom / Avago
Description:
Optical Switches, Reflective, Photo IC Output 2 Channel 180LPI
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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