MLX90372 datasheet(21/83 Pages) MELEXIS

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ML90372 Triaxis® Position Processor

Datasheet

REVISION 7 - March 23, 2018

Page 21 of 83

3901090372

Parameter

Symbol

Min

Typ

Max

Unit

Condition

For SENT without pause (asynchronous), 1.5μs tick time

(9)

SENT startup time

Tstup

6.42

6.50

6.56

Until first valid angle received

Average Latency

(9)

Tlatcy

0.91

1.17

1.70

0.91

1.21

1.80

Filter = 0 (no filter)

Filter = 1 (FIR11)

Filter = 2 (FIR1111)

(8)

Step Response (worst

case)

TwcStep

1.76

2.29

3.34

1.94

2.54

3.72

Filter = 0 (no filter)

Filter = 1 (FIR11)

Filter = 2 (FIR1111)

(8)

Table 17 - Asynchronous SENT Mode Timing Specifications

7.4.2. MLX90372 ACC Default SENT Timing specifications

MLX90372 ACC versions come with the following typical default programming that differs from ACE/ADE

version (see chapter 12, item no 134, T_FRAME).

Parameter

Symbol

Min

Typ

Max

Unit

Condition

SENT Frame Tick Count

(Normal SENT)

NTframe

366

ticks

For tick time of 3μs (Normal

SENT) and two angles per frame

Table 18 - Default ACC Synchronous SENT frame length

For this typical value, the timing performances are described in the next table (Table 19 - Synchronous

SENT mode ACC default timing specificationsTable 19). ACC has the same timing capabilities than the ACE

and can be programmed in a similar way. When the ACC default programming is changed to match the

one of ACE/ADE, timing performances are equivalent. For timing performances not described in this

section, refer to the Table 14 and section 7.4.1.

Parameter

Symbol

Min

Typ

Max

Unit

Condition

For SENT with pause (synchronous), 3μs tick time, 2 angles per SENT frame

SENT startup time

Tstup

7.18

Until first valid angle received

Average Latency

Tlatcy

1.79

2.33

Filter = 1 (FIR11)

Filter = 2 (FIR1111)

(10)

Step Response (worst

case)

TwcStep

3.28

4.38

Filter = 1 (FIR11)

Filter = 2 (FIR1111)

(8)

For SENT with pause (synchronous), 3μs tick time, 1 angle per SENT frame

(11)

10 See section 13.4 for details concerning Filter parameter

11 Need experimental/formal confirmation, data based on simulation

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