Sine Lookup Table Generator

This Python 3 script generates a single cycle sine wave look up table. It's useful for digital synthesis of sine waves with a DAC. Output is formated in hexadecimal with fixed 16 bit width and 16 data points per raw.

Invoke the script with a terminal:

>python <dir_path>\sine_lookup_generatore.py --size=1024 --floor=0 --ceiling=4095

or

>python <dir_path>\sine_lookup_generatore.py --s=1024 --f=0 --c=4095

Parameter help:

>python <dir_path>\sine_lookup_generatore.py -h

Parameters:

• --size : Table size, Integer.
• --floor : Minimum value of the amplitude. Integer (optional, defaults to 0)
• --ceiling : Maximum value of the amplitude. Integer (optional, defaults to 1023)

Output:

Note:

Not all DACs are capable of true Rail-to-Rail outputs. Use --ceiling, --floor to adjust the output to avoid clipping/distortion like shown bellow.

>python <dir_path>\sine_lookup_generatore.py --s=1024 --f=95 --c=4000