Other Parts Discussed in Thread: OPT8241
Hi.
We are trying to develop lidar module using opt9221 and opt8241
Let me ask you following questions about that.
1) About De-Aliasing method
There describes "de-aliasing" method on the datasheet. (datasheet p31 - p33)
This method is to extend the TOF range by using 2-modulation lights, I suppose.
For example, the distance is extended up to 15m by using both 70MHz and 80MHz modulation lights.
But I would like to know the detail mechanism of de-aliasing, for example,
How are the illumination and photo detect timing of 2 different frequency light doing?
How is the actual calculation doing on the OPT9221?
I also think it need more current to reach object.
i want to know how to increase current on this circuit . Which part change we need in attched circuit? or plz recommend
1) Patent
The above "de-aliasing" method is developped by TI, isn't it?
I think TI also have patents about de-aliasing.
I am wondering that there is no problem to use this method without any patents appoval.
tks