Newell Shenzhen Electronic Technology Co., Ltd. when the RF module while the receive mode, the signal received by the antenna, through the filter and into the receiver module receiving the control switch. First, the control module receives from the transceiver module through a balun coming unbalanced signals into balanced signals (so you can get a high common mode rejection ratio); a weak signal is then received by a low-noise amplifier amplification, and finally the solution tone circuit and supplied from the synthesizer local oscillator signal multilayered Bluetooth module, the carrier signal demodulated output. Shenzhen Electronic Technology Co., Ltd. Newell synthesizer transceiver module is the most critical part. PLL synthesizer when using channel selection and receive modes. Bluetooth module in receive mode, PLL closed receiver module for providing the required stability of the demodulated signal LO. Bluetooth module offer in the transmit mode, the phase locked loop is open, the modulation signal to the VCO loaded directly modulates the carrier. In this case the carrier frequency is maintained by the loop filter output voltage. Usually transmit frequency synthesizer work is only half the frequency in order to reduce the coupling of the RF amplifier. Bluetooth module Wholesale | Meishan Bluetooth module | Newell record provided by Shenzhen-Electronic Technology Co., Ltd. Department. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) strong, credible, a printed wiring board in Shenzhen, Guangdong and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Newell invasive and you hand into the brilliant, for a better future!