Protocol output

tdelay

Sensor

Interface

tlatency

Data

Transmission

Angle Computation

Protocol Setup

Data Filtering

Trigger

tdelay

Data

Transmission

Angle Computation

Protocol Setup

Data Filtering

1/fPWM

tangle

Sampling of raw angle values

tangle

Figure 4

PWM interface timing overview

 

SENT interface timing

The following figure shows the SENT interface timing overview. The raw data is continuously filtered and sampled

with the falling edge of the SYNC nibble, where the angle calculation starts and the output protocol is generated. After

finishing the angle calculation, the value is transmitted within the same SENT frame. In this way, a constant delay of

the angle data is achieved. 

Protocol output

Sensor

tlatency

Data

Transmission

Angle Computation

Protocol Setup

Data Filtering

Angle Computation

Protocol Setup

Data Filtering

Sync

Interface

Data

Transmission

Sync

Sampling of raw

angle values

Sampling of raw

angle values

Protocol output

tIIR + tnotch

tIIR + tnotch

tlatency

Figure 5

SENT interface timing overview 

 

SPC interface timing

The following figure shows the interface timing overview starting with the trigger event of the SPC interface. The raw

data is continuously filtered based on the configured filter characteristic. This data is sampled with the falling edge of

the synchronization pulse after a valid SPC trigger is received. The falling edge of the synchronization pulse also starts

the angle calculation using the CORDIC algorithm and the setup of the remaining protocol, which is send out after the

synchronization pulse within the same SPC frame. In this way, a constant delay of the angle data in respect to the

trigger event is achieved.

TLE49SR

Datasheet

4 Product features

Datasheet

11

Rev. 1.1.1

2024-03-13