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3.8.12
Encoder #2 Inputs (A2+, A2-, B2+, B2-, Z2+, Z2-)
Differential mode compliance
Input voltage, differential mode
Input impedance, differential
ESD protection
3.8.13
Sin-Cos Encoder Inputs (Sin+, Sin-, Cos+, Cos-)
Input voltage, differential
Input voltage, any pin to GND
Input impedance
Resolution with interpolation
Frequency
ESD protection
3.8.14
SSI encoder interface
Differential mode compliance
1
(CLOCK, DATA)
CLOCK Output voltage
CLOCK frequency
DATA Input hysteresis
Data input impedance
DATA Input common mode range
DATA format
DATA resolution
Single-turn frame
T/2
T
1
2
3
CK+
n
n-1
n-2
DT+
MSB
CK- and DT- signals have the same form with CK+ and DT+, but with opposite polarity.
Multi-turn frame
T/2
T
1
2
3
CK+
m+n m+n-1 m+n-2 m+n-3 m+n-4
DT+
MSB
CK- and DT- signals have the same form with CK+ and DT+, but with opposite polarity.
Encoder #2 differential input pins have internal 120Ω termination resistors connected across
1
2
For many applications, a termination resistor should be connected across SIN+ to SIN-, and across COS+ to COS-. This can be
achieved by setting SW3 pins 3,4 and 5 to ON. Please consult the feedback device datasheet for confirmation.
Technosoft 2019
Hysteresis
Differential mode
Common-mode range (A+ to GND, etc.)
Differential mode
Differential mode
Human body model
Sin+ to Sin-, Cos+ to Cos-
Operational range
Absolute maximum values, continuous
Absolute maximum, surge (duration ≤ 1s)
Differential, Sin+ to Sin-, Cos+ to Cos-
Common-mode, to GND
Software selectable, for one sine/cosine period
Sin-Cos interpolation
Quadrature, no interpolation
Human body model
Differential; 50Ω differential load
Common-mode, referenced to GND
Software selectable
Differential mode
Termination resistor on-board
Referenced to GND
Absolute maximum, surge (duration ≤ 1s)
Software selectable
Total resolution (single turn or single turn + multi turn)
4
5
n-3
n-2
n-1
n-3
n-4
4
3
2
n single-turn bits
4
5
m-3
m-2
m-1
n+4
n+3
n+2
m multi-turn bits
1
2
†
†
n
1
LSB
m
m+1
m+2
m+3
m+4
n+1
n
n-1
n-2
n-3
LSB
MSB
37
iPOS80x0 BX-CAN/-CAT Technical Reference
Min.
Typ.
TIA/EIA-422-A
±0.06
±0.1
-14
-11
120
0
50
±1
Min.
Typ.
1
-1
2.5
-7
-11
4.2
4.7
2.2
2
0
0
±2
Min.
Typ.
TIA/EIA-422
2.0
2.5
2.3
2.5
1000, 2000, 3000
±0.1
±0.2
120
-7
-25
Binary / Gray
Single-turn / Multi-turn
Counting direction
m+5
m+n-3 m+n-2 m+n-1
m+n
n-4
4
3
2
1
LSB
n single-turn bits
Max.
Units
±0.2
+14
V
+14
Ω
10
MHz
ns
kV
Max.
Units
1.25
V
PP
4
V
+7
+14
kΩ
kΩ
10
bits
450
kHz
10
MHz
kV
Max.
Units
5.0
V
2.7
kHz
±0.5
V
Ω
+12
V
+25
56
bit
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