MIPI D-PHY is a source-synchronous, high-speed, low-power physical layer interface. It utilizes a master-slave architecture optimized for connecting megapixel cameras and high-resolution displays to a host processor. A standard D-PHY configuration consists of:
Major Silicon IP providers are offering v2.5-compliant cores. provides a Universal IP core supporting all v2.5 features, including SSC, de-emphasis, and new power-saving modes, fabricated in TSMC 22ULP technology. Similarly, Arasan Chip Systems has collaborated with Testmetrix to release a C-PHY/D-PHY v2.5 Compo Hardware Development Kit (HDK) and compliance test platform, ensuring that v2.5 designs can be validated against the strict specification.
The MIPI D-PHY specification supports the following transmission modes: mipi dphy specification v25 pdf fixed
Lanes are often bi-directional in LP mode, though they remain uni-directional for HS data transmission to maintain performance. Comparison with Other MIPI PHYs
The new features of D-PHY v2.5 have extended its reach far beyond its mobile origins: provides a Universal IP core supporting all v2
Are you pairing it with a or DSI-2 (Display) upper layer?
True MIPI D-PHY compliance requires programmable current-drive outputs and switchable Comparison with Other MIPI PHYs The new features
Whether you are an IP developer integrating a 4.5 Gbps core into the latest TSMC process or a system designer debugging a camera link, having the correct, "fixed" version of the v2.5 specification in hand is non-negotiable. As the industry looks toward v3.0 and v3.5 for next-generation 8K and AR/VR applications, v2.5 continues to serve as the robust, backward-compatible, and highly capable backbone of the MIPI ecosystem.
: A new power-saving transmission mode that further optimizes efficiency. Typical Architecture The D-PHY v2.5 interface typically consists of one Clock Lane and up to four Data Lanes
Mipi D-PHY Specification v2-5 PDF | Data Transmission - Scribd
In continuous clock configurations, the high-speed clock lane does not drop into Low-Power mode between data bursts. The revised specification tightens the jitter tolerances and duty-cycle distortion (DCD) requirements at 4.5 Gbps. It explicitly defines the behavior of the clock lane during long periods of data lane inactivity, eliminating clock-drifts observed in early silicon implementations. High-Speed Reference Voltage ( VCMNTcap V sub cap C cap M cap N cap T end-sub ) Definitiveness