Development Board Open Source Software Defined Radio Platform Development Module 1MHz‑6GHz Item Type: Development Board Material: PCB Basic Parameters: Design Frequency: 1MHz-6000MHz Data Bandwidth: 20MHz Sampling Accuracy ADC DAC: 8bit Sampling Rate ADC DAC: 20Mbps Data And Power Supply Interface: USB2.0 Open Source Level: Fully Open Source (software, hardware) RF Indicator: Maximum Transmission Power: 10dBm (less than the minimum stray transmission power according to radio regulation) Maximum Receiving Power: -5dBm (Note: Exceeding this value will burn the board) 64QAM Emission EVM: 1.5% Multiple Sampling Bandwidth: 20MHz Main Hardware: RFFC5072: Mixer provides local oscillator signals from 80MHz to 4200MHz MAX2837: 2.3GHz to 2.7GHz wireless broadband RF transceiver MAX5864: ADC DAC, 22MHz sampling accuracy 8bit LPC4320/4330: For ARM Cortex M4 processor, 204MHz Si5351B: I2C programmable arbitrary CMOS clock generator with 40MHz and sampling clock provided by 800MHz division MGA 81563: 0.1-6GHz 3v 14dBm amplifier SKY13317: 20MHz-6.0GHz RF Single Pole 3 Throw (SP3T) Switch SKY13350: 0.01-6.0GHz RF Single Pole Double Throw (SPDT) Switch Take the receiving process as an example, after the signal enters from the antenna, the process is as follows: The RF switch determines whether to amplify through a 14dB amplifier The signal is high pass or low pass filtered by an image suppression filter Signal processing udrffc5072 chip is mixed to 2.6GHz fixed if The latest firmware supports the if variable option If the range is 2.150ghz-2.750ghz Signal input MAX2837 chip mixing to baseband, output differential aliqsignal The MAX2837 chip can limit the signal bandwidth The max5864 chip digitizes the baseband signal and sends it to cpld and microcontroller for all repair The LPC4320/4330 processor sends the sampled data to the computer via usb Put the RFFC5072 and MAX2837 in the shielding cover to protect them from interference from the outside world and other chips on the board, and try to avoid some chips from electrostatic breakdown Features: Operating frequency from 1MHz to 6GHz Half duplex transceiver Up to 20 million samples per second 8 bit orthogonal sample (8 bit i and 8 bit q) Software configurable RX and TX gain as well as baseband filters Software controlled antenna port power (50 mA at 3.3V) SMA female antenna connector SMA clock female input and output for synchronization Convenient programming button Internal row of pins for expansion High Speed USB 2.0 USB Power Supply Open Source Hardware