What is MIPI?
MIPI (Mobile Industry Processor Interface) Alliance is an industry consortium that develops interface specifications for mobile and mobile-influenced devices. The MIPI specification suite includes over 45 standards defining high-speed interfaces between components within mobile devices — such as camera modules, displays, RF transceivers, sensors, and application processors. MIPI interfaces are found in virtually every smartphone and many 5G IoT devices, providing standardised, low-power, high-bandwidth connections between internal components.
How Does MIPI Work?
Key MIPI specifications include: CSI-2 (Camera Serial Interface) for connecting image sensors to application processors at up to 16 Gbps per lane, DSI-2 (Display Serial Interface) for driving high-resolution displays, RFFE (RF Front-End) for controlling RF switches, tuners, and power amplifiers in 5G devices, DigRF for connecting the baseband processor to the RF transceiver, I3C (Improved Inter-Integrated Circuit) for sensor and peripheral connectivity, and M-PHY/UniPro for high-speed chip-to-chip communication. In 5G devices, MIPI RFFE is particularly critical — it provides the standardised digital interface for controlling the increasingly complex RF front-end modules that support multiple bands, carrier aggregation, and EN-DC.
Use Cases
5G smartphone internal component interconnection, camera and display interfaces in mobile devices, RF front-end control in multi-band 5G UE, IoT device sensor integration, and automotive infotainment and ADAS systems.
3GPP / Standards Reference
MIPI Alliance specifications (CSI-2, DSI-2, RFFE, I3C, DigRF), JEDEC interface standards (complementary to MIPI)
Related Terms
UE | FR1 | FR2 | Carrier Aggregation | IoT
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This glossary entry is part of the 5GWorldPro Complete 5G Glossary. To go deeper into 5G architecture and technology, explore our 5G Training courses.
