Analog DevicesMAX9295DGTM/V+Specialized Interfaces
Gmsl2 Serializer With Dsi Input And Coax Automotive AEC-Q100
MAX9295D: Dual Input GMSL2TM Serializer
The MAX9295D converts single- or dual-port MIPI CSI-2 data streams to GMSL2™ or GMSL1™ while sending and receiving control-channel data, enabling full-duplex single-wire transmission of forward video and bidirectional control data over cables in excess of 15m in length.
In GMSL2 mode, the MAX9295D operates at a fixed rate of 3Gbps or 6Gbps in the forward direction and 187.5Mbps in the reverse direction. In GMSL1 mode, the MAX9295D can be paired with first-generation 3.12Gbps or 1.5Gbps GMSL1 deserializers or operate up to 4.5Gbps with GMSL2 deserializers configured for GMSL1 mode. Operation is specified over the automotive temperature range of -40°C to +105°C and the device is AEC-Q100 Grade 2 qualified. Cable can be coaxial or shielded twisted pair (STP).
| 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 | ||
| 3Gbps/187.5Mbps | 20m | 10m | 11m |
| 6Gbps/187.5Mbps | 15m | 9m | 8m |
Table 1. Typical Maximum Cable Length vs. Attenuation
Key Features and Benefits
- • Dual 4-Lane MIPI CSI-2 v1.3 Ports
- • MIPI D-PHY v1.2 at 80Mbps
- • 2.5Gbps per Lane
- • 4-Channel CSI-2 Virtual-Channel Support
- • Support for RAW8/10/12/14/16/20, RGB565/666/888 and YUV8-/10-Bit Data types
- • CSI-2 Inputs in GMSL2 Mode Accept Cameras with Different Video Timing and Resolution
- • CSI-2 ECC and Checksum Error Detection and Flagging
- • CSI-2 Lane Reassignment and Polarity Flip
- • Selectable GMSL2 at 3/6Gbps or Backward-Compatible GMSL1 Mode
- • Operates up to 4.5Gbps with GMSL2 Deserializers in GMSL1 Mode
- • 187.5Mbps Reverse Link for Reduced-Size Power-over-Cable (PoC) Filter
- • Forward- and Reverse-Channel PRBS for BER Testing of Serial Link
- • Reverse-Channel Eye-Opening Monitor for Continuous Link-Margin Diagnosis
- • Reverse-Channel Adaptive Equalization Allows Coax Cable Longer than 15m with Multiple Inline Connectors
- • Crosspoint Switch Remaps Input to Any Desired Deserializer Output Order
- • ASIL-Relevant Functional Safety Features (GMSL2)
- • ASIL-B Compliant
- • 16-Bit CRC Protection of Side-Channel Data (I2C, UART, SPI, GPIO) with Retransmission upon Error Detection
- • Optional 32-Bit CRC Protection of Video-Line Data
- • Video Watermark Insertion and Detection
- • Concurrent Side Channel for Device Configuration and Communication with Peripherals
- • GMSL2: I2C/UART, Dual Pass-Through I2C/UART, SPI, GPIO and Register-Programmable GPIO
- • GMSL1: I2C/UART, Tunneled GPI-GPO and CNTL Links, and Register-Programmable GPIO
- • Four Hardware-Selectable Device Addresses
- • Three Internal and Three External Supply Voltage Monitors
- • 50Ω Coax Cable or 100Ω STP
- • Programmable Spread Spectrum for EMI Reduction
- • 7mm x 7mm TQFN Package with Exposed Pad and Available Wettable Flanks
- • -40°C to +105°C Operating Temperature
- • AEC-Q100 Grade 2
Applications
- • Co-located sensors
- • Stereo camera
- • Side mirror
- • Radar
- • Lidar
Evaluation Board
The MAX9295D can be evaluated with the MAX9295DEVKIT.
Block Diagrams and Tables
| Compliant | |
| Active | |
| EA | |
| Automotive | Yes |
| PPAP | Yes |
| Dual CSI-2 Serializer | |
| I2C/SPI/UART | |
| 0.95|1.14|1.7|3 | |
| 1|1.2|1.8|3.3 | |
| 1.05|1.26|1.9|3.6 | |
| 360 | |
| 2200 | |
| -40 | |
| 105 | |
| Automotive | |
| Mounting | Surface Mount |
| Package Height | 0.73 |
| Package Width | 7 |
| Package Length | 7 |
| PCB changed | 48 |
| Standard Package Name | QFN |
| Supplier Package | TQFN EP |
| 48 |
| EDA / CAD Models |
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