The Mixel MIPI C/D-PHY combo IP (MXL-CPHY-DPHY) is a high-frequency low-power, low cost, physical layer compliant with the MIPI® Alliance Standard for C-PHY and D-PHY. (Learn more about Mixel’s MIPI ecosystem at Mixel MIPI Central which gives you access to Mixel’s best of class MIPI ecosystem supply chain partners.)
The PHY can be configured as a MIPI Master or MIPI Slave, supporting camera interface CSI-2 v1.2 or display interface DSI v1.3 applications in the D-PHY mode. It also supports camera interface CSI-2 v1.3 and display interface DSI-2 v1.0 applications in the C-PHY mode. The high-speed signals have a low voltage swing, while low-power signals have large swing. High-Speed functions are used for high-speed data traffic while low-power functions are mostly used for control.
The C-PHY is based on 3-Phase symbol encoding technology, delivering 2.28 bits per symbol over three-wire trios, operating with a symbol rate range of 80 to 4500 Msps per lane, which is the equivalent of about 182.8 to 10260 Mbps per lane.
The D-PHY supports a bit rate range of 80 to 1500 Mbps per Lane without deskew calibration, and up to 4500 Mbps with deskew calibration.
The low-power mode and escape mode are the same in both the D-PHY and C-PHY modes. To minimize EMI, the drivers for low-power mode are slew-rate controlled and current limited. The data rate in low-power mode is 10 Mbps. For a fixed clock frequency, the available data capacity of a PHY configuration can be increased by using more lanes. Effective data throughput can be reduced by employing burst mode communication.
Mixel’s C-PHY/D-PHY combo is a complete PHY, silicon-proven at multiple foundries and multiple nodes. The C/D-PHY is fully integrated and has analog circuitry, digital, and synthesizable logic.
