AS5043
Data Sheet – Electrical Characteristics
Figure 24: Integral and Differential Non-Linearity (exaggerated curve)
10bit code
α
1023
1023
Actual curve
TN
2
1
Ideal curve
DNL+1LSB
INL
0.35°
0
512
512
0
°
[degrees]
180°
°
α
0
360
Integral Non-Linearity (INL) is the maximum deviation between actual position and indicated position.
Differential Non-Linearity (DNL) is the maximum deviation of the step length from one position to the next.
Transition Noise (TN) is the repeatability of an indicated position.
19.6 Timing Characteristics
Synchronous Serial Interface (SSI)
(operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless
otherwise noted)
Parameter
Symbol
Min
Typ Max Unit Note
Data output activated
(logic high)
Time between falling edge of CSn and data
output activated
t DO active
100
ns
First data shifted to output
register
Time between falling edge of CSn and first
falling edge of CLK
tCLK FE
T CLK / 2
t DO valid
t DO tristate
t CSn
500
500
ns
ns
ns
ns
ns
Start of data output
Data output valid
Rising edge of CLK shifts out one bit at a time
Time between rising edge of CLK and data
output valid
413
100
Data output tristate
Pulse width of CSn
Read-out frequency
After the last bit DO changes back to “tristate”
CSn = high; To initiate read-out of next
angular position
500
>0
fCLK
1
MHz Clock frequency to read out serial data
19.7 Programming Conditions
(operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless
otherwise noted)
Parameter
Symbol
t Prog enable
t Data in
Min
Typ
Max
Unit Note
Time between rising edge at Prog
Programming enable time
Write data start
2
µs
µs
ns
pin and rising edge of CSn
2
Write data at the rising edge of
CLKPROG
Write data valid
t Data in valid
250
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