I think "Maximum Recommended Value for Rr" is calculated so that injection level becomes 50mV.
I heard injection level should be 20mV to 50mV.
Injection level decreases as Rr value increases.
So I think this "Maximum Recommended Value for Rr" is "Min recommended value". Because injection level becomes over 50mV if we use lower resistor value than this recommended value.
Is my understand wrong?