Wednesday, February 1, 2023

Industry’s First High-Speed SerDes Silicon

By Sharad Bhowmick

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The VS775 is a power-efficient SerDes in an ultra-compact size that can help designers build safer autonomous vehicles.

VS775 module (Source: VSI)

VS775 from VSI is the first commercial serializer/deserializer (SerDes) IC that complies with the ASA Motion Link standard. The VS775 provides a data transmission rate of up to 16 Gbps so that the ECU can quickly process high-resolution image data collected by vehicle image sensors, especially electric vehicles and autonomous vehicles. The SerDes IC provides a commercial camera link semiconductor solution that will resolve the bandwidth concerns associated with using more high-resolution image sensors in advanced autonomous vehicle designs.  The VS775 is a power-efficient SerDes in an ultra-compact size that can help designers build safer autonomous vehicles.

The VS775 is fully ASA compliant and provides a commercial camera link semiconductor solution that will resolve the bandwidth concerns associated with using more high-resolution image sensors in an advanced autonomous vehicle. It is designed to support asymmetric high-speed data links in a point-to-point topology while providing high-speed unidirectional data and bidirectional control data. These chipsets are robust against impulsive noise and equipped with high-precision equalizers supporting up to 40dB insertion loss.

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The VS775 also provides Forward Error Correction (FEC) capabilities, eliminating the need for re-transmissions which is crucial for safety-critical automotive applications. This interoperable SerDes solution will provide automotive OEMs and their suppliers with high-speed link solutions for their growing number of sensors (Cameras, Radars, Lidars) and displays that enable automotive applications such as Advanced Driver Assistant Systems (ADAS), In-Vehicle Infotainment (IVI), and ultimately, autonomous vehicles.

Features of VS775

  • ASA (Automotive SerDes Alliance) standard compliant
  • Support for up to 4K video resolution with 8Gbps bandwidth
  • D-PHY and CSI-2 compliant interface
  • Power-over-Coax (PoC) compatible
  • Low-power consumption based upon optimal control of transceiver circuits
  • ​Bidirectional I2C (byte/bulk mode) and GPIO control channels
  • High precision GPIO synchronization using PTB (Precision Time Base) for camera synchronization
  • High-accuracy line fault location detection with 1/2 inch resolution

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