What happens if the Prescaler RF input level drops below the minimum indicated on the datasheet?
The Prescaler may oscillate. In order to suppress any oscillations, the device should be disabled when there is no signal or a weak signal. Some potential solutions are disabling VDD when the Prescaler is un-used, and/or increasing the de-coupling on VDD and placing a shunt FET at the RF input that turns on only when there is no input or a weak input.
Related Questions
- For the Prescalers, what happens when VDD drops below the minimum supply voltage? Will the part still divide or will it latchup high or low?
- On a PNA network analyzer, what happens to the power level when RF power is turned off during a sweep?
- What happens if input edge rates to the transmitter exceed datasheet specifications?
