KT0650 is a diversity assistant chip launched by KT Micro to cooperate with a new generation of low-energy UHF wireless receiver chips. KT0650 integrates a low-noise RF front-end amplifier, mixing, local oscillator, and FM demodulation. The demodulation is output to the master receiving chip of the diversity, and the master chip selects which chip the demodulated signal comes from in real time according to the signal quality received by the master and slave chips to ensure that the signal output by the chip is good. The antenna diversity function can effectively reduce the influence of signal fading caused by factors such as multipath on the receiver.
KT0650 has an automatic mute function, which can automatically mute when the signal quality is poor to avoid harsh noise.
KT0650 has an automatic frequency control function, which can ensure that the transceiver can still be demodulated normally under a certain frequency deviation. There is no need to manually adjust the frequency of the transceiver crystal, so production efficiency and product quality are ensured.
KT0650 also integrates the same digital auxiliary channel function as the main chip, which helps users use the digital auxiliary channel for data transmission whether they use the main chip or receive from the chip.
KT0650 has a 2-wire interface compatible with the main chip, but the device address is different from the main chip, and there is a 1-bit address control bit, which can easily share the bus with the main chip and save MCU resources.