RFFC5072: Mixer Provides 80MHz to 4200MHz Local Oscillation MAX2837: 2.3GHz to 2.7GHz Wireless Broadband RF Transceiver MAX5864: ADC/DAC, 22MHz sample rate 8bit LPC4320/4330: ARM Cortex M4 processor, 204MHz main frequency Si5351B: I2C programmable arbitrary CMOS clock generator, 40MHz 50MHz and sampling clock from 800MHz divider MGA-81563: 0.1-6 GHz 3V, 14 dBm amplifier SKY13317: 20 MHz-6.0 GHz RF Single Throw Triple Throw (SP3T) Switch SKY13350: 0.01-6.0 GHz RF single knife double throw (SPDT) switch Taking the reception process as an example, the signal enters from the antenna and flows as follows The RF switch decides whether to amplify the signal through a 14 dB amplifier High-pass or low-pass filtering of the signal through a mirror rejection filter The signal is mixed to 2.6GHz fixed IF by RFFC5072 chip Latest firmware supports variable IF option IF range 2.150GHz - 2.750GHz The signal is fed to the MAX2837 chip for mixing to the baseband and outputting a differential IQ signal In between, the MAX2837 chip can limit the bandwidth of the signal The MAX5864 chip digitizes the baseband signal and feeds it to the CPLD and microcontroller TODO FIXME CPLD The LPC4320/4330 processor sends the sampled data to the computer via USB Put the RFFC5072 and MAX2837 in a shield to protect them from the outside world and other chips on the board, and try to prevent electrostatic breakdown of some chips Colour:black Material:PC Package Contents: 1 x 1Mhz-6GHz Software Radio 1 x Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.