1. Product overview
The product uses XC7Z020 as the main processor, including Dual ARM Cortex-A9 core processor embedded processing, PS side contains 32bit 1GB capacity DDR3 storage, 32MQSPI storage, support TF card expansion, 1 channel Gigabit Ethernet, VCXO reference, support external taming.
Based on Analog Devices' AD9361, it provides a cost-effective experimental platform with an instantaneous bandwidth of 56MHz, increased sensitivity, flexible dynamic range, and a wide range of applications such as SDR (radio software), mobile base stations, WiFi, wireless LANs, and general purpose radio equipment.
2. Schematic block diagram
3. Product features and indicators
| Features: |
| Main processor |
XC7z020-2CLG400I |
| DDR3 |
1GB with 32-bit data width and DDR3 1066MHz frequency |
| storage |
32M QSPI storage with TF card expansion |
| Ethernet |
1 x Gigabit Ethernet |
| USB |
1* USB OTG interface (Type-C) |
| Debugging port/power supply interface |
1* JTAG/UART interface (Type-C) |
| AD9361 |
| RF frequency |
70MHz – 6GHz |
| ADC/DAC acquisition |
12-bit |
| passage |
Two Tx, two Rx |
| Instantaneous bandwidth |
56 MHz |
| GPS |
In the tank |
| Tx Bandwidth |
Up to 56 MHz |
| Tx Transmission |
>5dBm |
| Tx EVM |
<1.5% |
| Tx Gain Control Range |
>80dB |
| Tx Gain Step |
0.25dB |
| Tx ACLR |
< -45dBc |
| Tx Spurious |
TBD |
| Tx SSB Suppression |
35dBc |
| Tx L0 Suppression |
50dBc |
| DAC Sample Rate (max) |
61.44MS/s |
| DAC Resolution |
12bits |
| Rx Bandwidth |
up to 56 MHz |
| Rx Sensitivity |
-90dBm@20MHz |
| Rx EVM |
<1.5% |
| Rx Gain Control Range |
>60dB |
| Rx Gain Step |
1dB |
| Rx Blocking |
TBD |
| Rx Noise Figure |
<8db |
| Rx IIP3 (@ typ NF) |
-25dBm |
| ADC Resolution |
12bits |
| DAC Wideband SFDR |
78dBc |
| Voltage |
3.3V & 12V |
| ON/OFF TIME |
<6us |
| Duplexing Wodel |
TDD or FDD |
| Physical parameters |
| weight |
311g (with four antennas) |
| size |
113*72*30 mm (without antenna). |
4. technical support and testing
4.1. Provide software support:
(1) HDL project, vivado version: vivado2019.1;
(2) petalinux project, petalinux version is: petalinux2019.1
(3) The prepared SD card linux image file
(4)
ADI official library compressed package and IIO Oscilloscope software installation package;
(5) Reference instructions for IIO Oscilloscope upper computer test.
4.1. Example of data file sending:
Test principle: The product runs the linux system, with the IIO Oscilloscope host computer software,
the TX of the AD9361 sends the modulation signal qam16_20M.txt data file, the RX loopback receives, and the frequency domain diagram verified by the IIO Oscilloscope analysis and reception. The TX frequency domain can also be observed with a spectrometer first.
The results of the test are as follows:
