MIPS-based remote small-step frequency source

The output frequency of the traditional frequency source is low. Generally, only the point frequency can be input at a high frequency, and the control mode is single, and the cost is high. Based on this, a multi-frequency point frequency source based on MIPS for remote networks is proposed. Common frequency sources are directly implemented using DDS or PLL. Because the DDS output frequency is not high, there is no way to meet the application scenarios of higher frequency bands. The PLL output frequency is high but its output is point frequency. So combining DDS and PLL to achieve high output frequency and small step. MIPS has very good hardware support for 802.11b / g and 802.11n protocols to implement 100M Ethernet data transmission and reception. It can reduce the design complexity and design cost while meeting the functional requirements. The upper computer software in this article sends a network data through TCP protocol. This data contains the Ethernet data frame configured with the frequency source control command to MIPS. After receiving the Ethernet data frame, MIPS automatically completes the data conversion and configures the received data to the frequency. source. Test results show that the design is practical. At the same time access to the local area network can achieve remote control, greatly increasing the flexibility of control. At the same time, it can adapt to the requirements of modern equipment control in the era of the Internet of Things, and miniaturize instruments.