Introduction

The NS6312 Serializer chip is compliant to Automotive Wired High-Speed Media Transmission (HSMT) standard. Pairing with a compatible HSMT deserializer, the NS6312 is used for transmission of forward video and bidirectional audio and control data for automotive camera applications. The NS6312 converts dual MIPI CSI-2 inputs to serial HSMT output, and transmits the output to the paired deserializer over a single HSMT link. The HSMT link operates at a data rate up to 6.4Gbps in the forward direction, and 100Mbps in the backward direction. The NS6312 supports Power-over-Cable (PoC) operation over 16 meters Coaxial cable or 10 meters Shielded Twisted Pair  (STP) cable, with multiple inline connectors. The NS6312 is ISO 26262 ASIL-B and AEC-Q100 Grade 2 certified with automotive temperature range of -40°C to +105°C.

The NS6312 supports I2C and SPI control ports, flexible GPIO with trigger mode, constant latency mode and oversample mode, tunneled UART, forward and backward audio channels, a built-in ADC, temperature sensor, and an extensive set of diagnostics for functional safety.

Applications

• High-Definition 12MP Camera Systems

• Advanced Driver Assistance Systems (ADAS)

• Front Vision Camera Systems (FVC)

• Surround View Systems (SVS)

• Driver Monitor Systems (DMS)

• Automatic Parking Assist (APA)

Features

• HSMT link for system and power flexibility

          ·      2.0, 3.2, 4.0, or 6.4Gbps forward-link rates in NRZ mode

          ·      100Mbps backward-link rate to allow small POC inductor

• Robust communication in automotive environment

          ·      RS-FEC for protection of forward video and bidirectional control-channel data

          ·      Retransmission

          ·      Backward channel adaptive equalization

          ·      Backward channel eye timing margin monitor for continuous link margin diagnosis

• Single or dual MIPI CSI-2 inputs

          ·      RAW8/10/12/14/16/20/24, RGB888, YUV422 8/10-bit

          ·      16 virtual channels

          ·      D-PHY V1.2, up to four lanes per port and up to 2.5Gbps per lane

• Supports bulk and tunneling modes I2C (master up to 833Kbps, slave up to 1Mbps)

• Supports SPI (master/slave up to 50Mbps), UART (Tx/Rx), and GPIO

• Functional safety 

         ·      ISO 26262 ASIL-B certified

         ·      CRC protection of control data overI2C and SPI

         ·      Video data error correction and retransmission 

• Video watermark insertion and detection

• Video test pattern generation

• Supports line fault detection and voltage monitor

• Generates reference clock for image sensor synchronizing to back channel clock

• Generates frame sync singal to image sensor

• Programmable spread spectrum for EMI reduction 

• 7mm x 7mm 48-pin QFN package