AS5043_1 AMSCO [austriamicrosystems AG], AS5043_1 Datasheet - Page 32

• Manufacturer Part Number: AS5043_1
• Description: Programmable 360 Magnetic Angle Encoder with Absolute SSI and Analog Outputs
• Manufacturer: AMSCO [austriamicrosystems AG]

AS5043
Data Sheet – Electrical Characteristics
Figure 24: Integral and Differential Non-Linearity (exaggerated curve)
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: T
otherwise noted)
19.7 Programming Conditions
(operating conditions: T
otherwise noted)
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Parameter
Programming enable time
Write data start
Write data valid
Parameter
Data output activated
(logic high)
First data shifted to output
register
Start of data output
Data output valid
Data output tristate
Pulse width of CSn
Read-out frequency
1023
512
0
amb
amb
0 °
α
= -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless
= -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless
10bit code
t
t
Symbol
DO
T
t
2
1
0
t
DO tristate
CLK FE
DO valid
t
f
CLK / 2
CLK
active
CSn
t
t
Symbol
Data in valid
Prog enable
t
Data in
0.35°
TN
INL
Min
500
500
500
>0
DNL+1LSB
Min
250
2
2
Revision 1.80
Typ
180°
Actual curve
Ideal curve
512
Max
Typ
100
413
100
1
Unit
MHz Clock frequency to read out serial data
ns
ns
ns
ns
ns
ns
Max
Note
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
Time between rising edge of CLK and data
output valid
After the last bit DO changes back to “tristate”
CSn = high; To initiate read-out of next
angular position
Unit Note
µs
µs
ns
Time between rising edge at Prog
pin and rising edge of CSn
Write data at the rising edge of
CLK
360 °
1023
PROG
α
[degrees]
32 – 36