A physical layer for high-performance, cost-optimized cameras and displays

Quick Facts

Primary Uses
  • Predominant PHY for smartphone, IoT and automotive camera and display applications
  • Supports MIPI CSI-2 and MIPI DSI-2 in low-power, high-speed applications for interconnect lengths up to 4 meters
Fundamental features
  • High performance
  • Low power
  • Low EMI
Use Cases

Smartphone cameras and displays

Smart watch displays

Drones

Surveillance cameras

Robots

Large tablets

In-sight (glass) products

In-car infotainment and dashboard displays

Automotive camera and radar sensors

Industries

Icon of a Smart PhoneIcon of a TabletIcon of a laptopIcon of an AutomobileIcon of a cloud with the letters IoT inside.Icon of a cameraIcon of a Smartwatch

Overview

MIPI D-PHY℠ connects megapixel cameras and high-resolution displays to an application processor. It is a clock-forwarded synchronous link that provides high noise immunity and high jitter tolerance. MIPI D-PHY also offers low latency transitions between high-speed and low power modes.

MIPI D-PHY is a popular PHY for cameras and displays in smartphones because it is a flexible, high-speed, low-power and low-cost solution. It is also applied for many other use cases, such as drones, very large tablets, surveillance cameras and industrial robots. Further, D-PHY is also used heavily in automotive applications including camera sensing systems, collision avoidance radars, in-car infotainment and dashboard displays with the support of proprietary bridging solutions.

Operation and available data rates for a link are asymmetrical due to a master-slave relationship of the link transceivers. The asymmetrical design significantly reduces the complexity of the link and is well-suited for display and camera use cases with one major data transmission direction, for example. Bi-directional and half-duplex operation are optional.

New Features in MIPI D-PHY v2.5

MIPI D-PHY v2.5 adds a fast BTA as well as an Alternate Low Power (ALP) feature, which enables a link operation using only D-PHY’s high-speed signaling levels. These features enable applications of not only mobile devices, but also IoT devices operating over several meters at high-speed. Also, these features enable an in-band control mechanism in conjunction with MIPI’s CSI-2 v3.0 Unified Serial Link (USL). Maximum date rates remain at up to 4.5 Gbps over the standard channel and up to 6 Gbps over the short channel.

MIPI D-PHY is developed by the MIPI PHY Working Group.

The specification is available only to MIPI Alliance members. For information about joining MIPI alliance, see Join MIPI.

Get the Specification

MIPI D-PHY℠ v2.5
Member version

Versions

Current Version: 

v2.5 (October 2019)