AS5046 Programmable 360° Magnetic Angle Encoder – Preliminary Data Sheet

Revision 1.1

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Page 7 of 33

Parameter

Symbol

Min

Typ

Max

Unit

Note

2.48

2.61

2.74

Internal sampling rate for absolute

output

2.35

2.61

2.87

kHz

9.90

10.42

10.94

Internal sampling rate for absolute

output

9.38

10.42

11.46

kHz

Read-out frequency

CLK

>0

1

MHz

Max. clock frequency to read out serial data

Note: 1) digital interface

180°

360 °

0 °

0

2048

4095

α

0

1

2

0.09°

INL

Ideal curve

Actual curve

TN

2048

4095

DNL+1LSB

[degrees]

Figure 4: 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.

5.6

Timing Characteristics

2-wire Serial Interface

otherwise noted)

Parameter

Symbol

Min

Typ

Max

Unit

Note

Data output activated (logic high)

100

ns

Time between falling edge of CSn and data output activated

First data shifted to output register

500

ns

Time between falling edge of CSn and first falling edge of

CLK

Start of data output

500

ns

Rising edge of CLK shifts out one bit at a time

Data output valid

357

375

394

ns

Time between rising edge of CLK and data output valid

Data output tristate

100

ns

After the last bit DO changes back to “tristate”

Pulse width of CSn

500

ns

CSn = high; To initiate read-out of next angular position

Read-out frequency

>0

1

MHz

Clock frequency to read out serial data