ADIS16460 SYNC

hi

i am thinking to use the adis16460 with external clock to synchronize it with my control loop (Direct Sample Control MODE), i will be happy if you can please explain me about how this effects system performance  as i came across the next line: 

"The sync input clock functions below the specified minimum value but at reduced performance levels" ?

i am planning to provide a 2kHz clock signal, so i assume that the low pass filter configuration (as seen in figure 29) will be all most the same as 2KHZ is very close to the default 2048Hz , is that assumption correct?

best regards

Mark

Parents
  • Hi Mark

    thank you very much for your reply.

    i have established connection with the device  using the burst mode and everything works well.

    in my application program i have an a 2Khz control loop, and i want to synchronize it to the data ready time in ADIS16460 , so i will have small and constant time delay.

    i will be happy if you can help with the next  issues:

    - i have monitored the DR pin with scope , and it seems that the act of reading the output registers influence on the internal sample process: for example if i use the default settings (2048SPS) and i read the data in 2khz rate i see the time period on the DR signal slightly changes - meaning the the frequency isnt constant but moves around 2KHz , does the act of reading sensor data influence the sensor internal sampling process?

    - about using the external clock, if i provide a 2Khz PWM signal (with 50% duty cycle) i assume that the internal sampling rate will be also 2KHz is my assumption correct? 

    best regards

    Mark

Reply
  • Hi Mark

    thank you very much for your reply.

    i have established connection with the device  using the burst mode and everything works well.

    in my application program i have an a 2Khz control loop, and i want to synchronize it to the data ready time in ADIS16460 , so i will have small and constant time delay.

    i will be happy if you can help with the next  issues:

    - i have monitored the DR pin with scope , and it seems that the act of reading the output registers influence on the internal sample process: for example if i use the default settings (2048SPS) and i read the data in 2khz rate i see the time period on the DR signal slightly changes - meaning the the frequency isnt constant but moves around 2KHz , does the act of reading sensor data influence the sensor internal sampling process?

    - about using the external clock, if i provide a 2Khz PWM signal (with 50% duty cycle) i assume that the internal sampling rate will be also 2KHz is my assumption correct? 

    best regards

    Mark

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