The MIPI D-PHY Specification v2.5 PDF is a copyrighted document owned by the MIPI Alliance. It is not legally available for free public download on open websites.
The is a physical layer specification developed by the MIPI Alliance (Mobile Industry Processor Interface). It serves as the de facto standard for high-speed, low-power serial interfaces in mobile devices. Version 2.5 represents a significant evolution of the standard, introducing substantial bandwidth improvements to support emerging high-resolution camera and display technologies (such as 4K/8K video and multi-camera setups) while maintaining the low-power characteristics essential for mobile battery life. mipi d-phy specification v2.5 pdf
The MIPI D-PHY specification defines the following signaling and transmission schemes: The MIPI D-PHY Specification v2
Supports Spread Spectrum Clocking (SSC) and Transmit Equalization (de-emphasis) , which help manage electromagnetic interference (EMI) and improve signal quality across longer traces or cables. It serves as the de facto standard for
Before diving into version 2.5 specifically, let’s define the standard. The MIPI D-PHY is a physical layer (PHY) standard used primarily for camera (CSI-2) and display (DSI-2) interfaces. Unlike parallel interfaces (like traditional RGB or BT.656), D-PHY uses差分信号 (differential signaling) to achieve high data rates with fewer pins.
If you manage to get your hands on the official specification (Version 2.5, Revision Date: 2020/2021), here is what you will find: