Spice model for NJL5501R in LTspice

[patan.gova]

Hello,
I just started using the LTspice and was unable to find the Spice model for NJL5501R(https://se.mouser.com/ProductDetail/NJR/NJL5501R-TE1/?qs=0e%252bqhcfOUKIBuOgt5aac0A==
Also how to add a new model to the LTspice.I was planning to use OPA381 and when googled for spice model found a file containing .LIB,.TLD,.TSM. extension files.
How to add this model to my LTspice.

Can anyone help me out with this.
Thanks.

 

[FvM]

In terms of SPICE, NJL5501R is just a combination of two LEDs and a phototransistor, nothing special. What do you expect from a NJL5501R SPICE model? How should it represent the non-electrical signal generating the output.

These aspects can be modelled in a SPICE simulation, but they are beyond the responsibility of the sensor manufacturer. It's system rather than device simulation.

You can .include a lib file in your LTSpice design and connect it to a symbol. Check if the pin order expected by the symbol is identical to that of the subcircuit in the lib-file.

 

[patan.gova]

@FvM:Yes, you are right but how generate the output photoplethysmograph signal in spice that will be similar to the NJL5501R realtime operation.The intensity of the LED will be reflected by the finger and will be sensed by the transistor whose output is the PPG signal. How to make this PPG signal in spice.As I will be processing the output of NJL5501R with filters so as to get the exact pulse signal.
Thanks.