AS5045-ASST austriamicrosystems, AS5045-ASST Datasheet - Page 10

• Manufacturer Part Number: AS5045-ASST
• Description: IC ENCODER PROG 12-BIT 16-SSOP
• Manufacturer: austriamicrosystems
• Type: Linear, Rotary Encoder - Programmabler

Specifications of AS5045-ASST

• Sensing Range: 45mT ~ 75mT
• Voltage - Supply: 3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Current - Supply: 21mA
• Current - Output (max): 4mA
• Output Type: Digital, PWM, 12-Bit Serial
• Features: Programmable
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AS5045-ASSTTR

AS5045
Data Sheet
Figure 3. Integral and Differential Non-linearity (example)
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
(operating conditions: T
unless otherwise noted)
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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
Synchronous Serial Interface (SSI)
4095
2048
0
0 °
α
12bit code
amb
2
1
0
= -40 to +125°C, VDD5V = 3.0~3.6V (3V operation) VDD5V = 4.5~5.5V (5V operation)
Symbol
t
t
T
t
t
DO tristate
DO active
CLK FE
DO valid
t
f
CLK / 2
CLK
CSn
0.09°
TN
INL
Min
500
500
357
500
>0
DNL+1LSB
Typ
375
Revision 1.7
180°
Actual curve
Ideal curve
2048
Max
100
394
100
1
Unit
MHz
ns
ns
ns
ns
ns
ns
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
Clock frequency to read out serial data
360 °
4095
α
[degrees]
10 – 33