Tool for computing tuning to specific frequencies by use of direct ADC reading at specific timer-controlled rate to "tune" to specific frequencies either by quadrature or differential.

Crystal MHz |
Target MHz |

Quadrature:
I = + + - -
Q = + - - +
Differntial:
V = + - + -
You choose the mode you operate in, either Quadrature or differential

Table shows:

Sample Frequency Harmonic
Lower Quadrature Frequency
Upper Quadrature Frequency
Differential Frequency