Tsinghua Unigroup official website: http://www.unisoc.com/cn/

On January 19, 2018, Spreadtrum and Ruidike of Ziguang Group officially completed the integration. As a core enterprise in the Ziguang integrated circuit industry chain, Ziguang Zhanrui is committed to independent research and development and design of core chips in the field of mobile communications and the Internet of Things. The products cover 2G / 3G / 4G mobile communications baseband chips, radio frequency chips, wireless connection chips, and security Chip, TV chip, image sensor chip. At present, Ziguang Zhanrui has more than 4,500 employees. It has 14 technology research and development centers and 7 customer support centers around the world. It has developed into the world's top three mobile phone baseband chip design companies, China's largest pan-chip supplier, and China's leading 5G communication chip company.

Rui Di Ke Microelectronics was established in 2004, is committed to the design, development, manufacturing, sales of radio frequency and mixed signal chips and system chips and provides related technical advice and technical services. Products mainly include GSM baseband / multi-system RF transceiver chip / multi-system RF power amplifier chip / Bluetooth, wireless, FM radio combination chip / set-top box tuner / digital and analog TV chip / interphone transceiver / satellite TV high frequency head, etc. At the same time, the company is committed to the research and development of smart phone systems and 3G / 4G communication terminal platforms to provide customers with excellent mobile phone platform products in China and emerging markets around the world.

RDA5981A is a low-power MCU that integrates IEEE802.11b / g / n MAC / PHY / radio on a single chip, including tcp / ip protocol and ssl, provides better link robustness, extended range and increased Quantity, SED performance, for the highest level of integration, the required board space has been minimized, and customer costs have been reduced. Manufacturers can easily and quickly integrate rda 5981A into their products, enabling UCT to work quickly.

RDA5981A adopts compact 5 × 5mm QFN package, 0.4mm pitch QFN-40.