General Description
The MAX96712 deserializer converts GMSL2 or GMSL1
serial inputs into MIPI CSI-2 D-PHY or C-PHY formatted
outputs. The device allows each link to simultaneously
transmit bidirectional control-channel data while forward
video transmissions are in progress. The MAX96712 can
accommodate as many as four remotely located sensors
using industry-standard coax or STP interconnects. Each
GMSL2 serial link operates at a fixed rate of 3Gbps or
6Gbps in the forward direction and 187.5Mbps in the
reverse direction. In GMSL1 mode, the MAX96712 can be
paired with first-generation 3.12Gbps or 1.5Gbps GMSL1
serializers or operate up to 3.12Gbps with GMSL2 serial-
izers in GMSL1 mode.
The MAX96712 supports both aggregation and replication
of video data, enabling streams from multiple remotely
located sensors to be combined and routed to one or more
of the available CSI-2 outputs. Data can also be routed
based on virtual channel ID, enabling multiple streams
from a single GMSL input to be routed independently to
different CSI-2 outputs. Alternatively, data from multiple
sensors can be synchronized and combined in a single
CSI-2 stream within a composite superframe using frame
concatenation. The CSI-2 interface supports both 2x 4-lane
and 4x 2-lane configurations using either C-PHY or D-PHY.
A variety of peripheral communication options are pro-
vided for flexible local register access and remote device
programming. Three I
2
C/UART ports support redundant
local and remote internal register access with concurrent
or tunneled remote peripheral communication. An addi-
tional two SPI ports are provided as tunneling interfaces
to remote peripherals (GMSL2).
Operation is specified over the automotive temperature
range of -40°C to +105°C with proper thermal design, and
the device is AEC-Q100 qualified.
Applications
● High-Resolution Camera Systems
• Rear-View Cameras
• Driver Monitoring Systems
• Gesture Cameras
● Safety Critical ADAS/Autonomous Driving Sensors
• RADAR
• LIDAR
• Surround-View Cameras
• High-Resolution Cameras
● Synchronized Multisensor Systems
Ordering Information appears at end of data sheet.
19-100544; Rev 0; 5/19
Benets and Features
● MIPI CSI-2 v1.3 Output Configurable as 2x4 Lane,
1x4 Lane + 2x2 Lane, or 4x2 Lane
• Selectable D-PHY v1.2 at 80Mbps to 2.5Gbps/
Lane or C-PHY v1.0 at 182Mbps to 5.7Gbps/Lane
• 16/32-Channel Virtual Channel Support (D/C-PHY)
• Flexible Aggregation and Routing of Incoming Data
via CSI-2 VC or Frame Concatenation
• Data can be Replicated and Routed to any CSI Port
• Supports RAW8/10/12/14/16/20,
RGB565/666/888,YUV422 8/10-Bit Formats
• Double Pixel Mode for Transmission Eciency
• CSI-2 Lane Reassignment and Polarity Flip
• MIPI/GMSL Video PRBS Generator and Checker
• Checkerboard/Color Gradient Pattern Generator
• Raw CSI-2 PRBS Generator
• Independent Conguration of all Video Paths and
GMSL/CSI-2 Ports
● Quad GMSL Inputs with Independently Configurable
GMSL1/2 Operation, Link Speed, and Video Format
• Mixed GMSL1/GMSL2 and 3G/6G Support
• Backward compatible with GMSL1 Serializers
• GMSL1 Forward Link Speed up to 3.12Gbps
• GMSL2 Link Speed of 3Gbps or 6Gbps (Forward)
and 187.5Mbps (Reverse)
• Simultaneous Support of Both Synchronized and
Non-Synchronized Cameras
• Enables Precise Synchronization of Multiple Serial-
izers for Large Camera Systems
• GMSL PRBS Generator/Checker for Link Testing
• Eye-Opening Monitor for Continuous Diagnostics
• Adaptive Equalization Enables up to 15m Coax
Cable with Multiple In-Line Connectors
• Compatible with 50Ω Coax or 100Ω STP
● ASIL-B Compliant (GMSL2)
• Video Watermark Insertion and Detection
• 16-Bit CRC Protection of Control-Channel Data
with Retransmission Upon Error Detection
• Optional 32-Bit CRC Protection of Video Line Data
• ECC Protection of Video Data Memory
• CRC Protection of CSI-2 Data Streams
● Concurrent Control Channel for Device Configuration
and Communicating with Remote Peripherals
• 3x I
2
C/UART, 2x SPI, 17x GPIO
• Eight Hardware-Selectable Device Addresses
● Programmable Spread Spectrum for EMI Reduction
● 64-lead 9mm x 9mm TQFN with Exposed Pad
Click here for production status of specic part numbers.
MAX96712 Quad GMSL2 to CSI-2 Deserializer
with GMSL1 Compatibility