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AS5045
Data Sheet
Figure 3. Integral and Differential Non-linearity (example)
4095 α 12bit code
Actual curve
4095
2
1
TN
DNL+1LSB
Ideal curve
2048
0
INL
0.09°
2048
0
0 °
180°
360 °
α [degrees]
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
6.7 Timing Characteristics
6.7.1
Synchronous Serial Interface (SSI)
(operating conditions: T amb = -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)
First data shifted to output
register
Start of data output
t DO active
t CLK FE
T CLK / 2
500
500
100
ns
ns
ns
Time between falling edge of CSn and data
output activated
Time between falling edge of CSn and first
falling edge of CLK
Rising edge of CLK shifts out one bit at a
time
Data output valid
t DO valid
357
375
394
ns
Time between rising edge of CLK and data
output valid
Data output tristate
Pulse width of CSn
t DO tristate
t CSn
500
100
ns
ns
After the last bit DO changes back to
“tristate”
CSn = high; To initiate read-out of next
angular position
Read-out frequency
f CLK
>0
1
MHz
Clock frequency to read out serial data
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