Off-channel signal detector with programmable hysteresis

A method of processing communication signals, the method comprising:

• receiving a radio frequency signal;
• performing attention of the radio frequency signal to produce an attenuated signal;
• amplifying the attenuated signal to produce an amplified signal;
• down-converting the amplified signal to produce a first baseband signal and a second baseband signal;
• amplifying the first baseband signal to produce a first differential signal and amplifying the second baseband signal to produce a second differential signal;
• processing the first differential signal and the second differential signal to produce a combined signal;
• and
• performing a hysteresis comparator operation on the combined signal to produce an output signal, wherein the output signal is to indicate whether an off-channel signal condition is detected.

A communication module comprising:

• a first amplifier having a first output to produce a first differential signal;
• a second amplifier having a second output to produce a second differential signal;
• and
• an off-channel signal detector responsive to the first amplifier and the second amplifier, the off-channel signal detector having a first input to receive the first differential signal and having a second input to receive the second differential signal, the off-channel signal detector including a programmable hysteresis comparator module, the off-channel signal detector producing an off-channel signal output signal to indicate whether an off-channel signal condition is detected.