CSI-2 to GMSL2 Serializer

The MAX96717F GMSL™ serializer receives video on a MIPI CSI-2 interface and outputs it on a GMSL2 serial link transceiver. Simultaneously, it sends and receives bidirectional control channel data across the same GMSL2 link. GMSL2 data can be transported over Coaxial or Shielded-Twisted Pair (STP) cables. It operates at a fixed rate of 3Gbps in the forward direction and 187.5Mbps in the reverse direction. The device is programmed through a local I2C/UART interface or across the link from a matching deserializer. The MAX96717F includes two I2C/UART pass-through channels, flexible GPIO, SPI tunnel, a built-in ADC, temperature sensor, and an extensive set of diagnostics for functional safety. Operation is specified over the automotive temperature range of -40°C to +105°C. The device is AEC-Q100 Grade 2 qualified.

Data can be transmitted over low-cost 50Ω Coax or 100Ω STP cables that meet the GMSL2 channel specification. Table 1 in the data sheet provides guidance to typical maximum lengths of commonly used automotive cables. Contact the factory for the GMSL2 channel specification.

Table 1. Typical Maximum Cable Length vs. Attenuation

3.2mm Ø

50Ω Coax, Foam Dielectric

2.7mm Ø

50Ω Coax, Solid Dielectric

100Ω

Shielded Twisted Pair, AWG26

Attenuation at 3GHz (Typ, Room Temp)

0.9dB/m

1.6dB/m

1.8dB/m

Attenuation at 3GHz (Max, Aged, +105°C)

1.1dB/m

2.0dB/m

2.2dB/m

GMSL Fwd/Rev Data Rate

Typical Maximum Cable Length at +105°C (m)

3Gbps/187.5Mbps

20

10

11

Applications

* Advanced Driver Assistance Systems (ADAS)

* LiDAR Systems

* RADAR Systems

* 4Mp 40fps Forward-Vision Camera (FVC) Systems

* Surround View Systems (SVS)

* Driver Monitor Systems (DMS)

* Rear-View Camera (RVC)

* Systems with Multiple Synchronized Cameras

* Automotive Grade High Speed Link

* -19.5dB at 1.5GHz (3Gbps) Max Insertion Loss

* Auto Adapt for Changes in Channel Conditions

* Operates at -40°C to +105°C Ambient

* Four-Lane D-PHY MIPI CSI-2 v1.3 Input Port

* 16 Virtual Channels

* Supports any CSI-2 Data Type in Tunneling Mode

* Advanced MIPI D-PHY v1.2 Receivers Rated at 2.5Gbps per Lane

* Polarity Flip and Data Lane Reassignment

* Full-Duplex Capability Over a Single Wire

* 3Gbps Forward-Link Rate

* 187.5Mbps Reverse-Link Rate

* CSI-2 ECC, Checksum Local, Remote Error Detection, and Flagging