Introduction

The NS6168 serializer chip is compliant to Automotive Wired High-Speed Media Transmission (HSMT) standard. Pairing with a compatible HSMT deserializer, the NS6168 is used for transmission of forward video and bidirectional audio and control data. The NS6168 converts a single or dual MIPI DSI inputs to HSMT output, and transmits the output to the paired deserializer over a single or dual HSMT links. Each HSMT link operates at a data rate up to 12.8Gbps in the forward direction and 100Mbps in the backward direction. The NS6168 supports 15 meters Coaxial cable or 8 meters Shielded Twisted Pair (STP) cable at 12.8Gbps. The NS6168 is AEC-Q100 Grade 2 certified with automotive temperature range of -40°C to +105°C, and compliant with ISO 10605 and IEC 61000-4-2 ESD standards.

The NS6168 is ISO 26262 ASIL-B certified and 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-resolution Automotive Navigation System

·           Central Information Display (CID)

·           Digital Instrument Clusters

·           Rear Seat Entertainment (RSE)

·           Head Units and HMI Modules

·           Rear View and Side Mirror Displays

Features

·           Single or dual MIPI DSI inputs

·           24/30-bit RGB, 16/20/24-bit YUV422, and loosely packed 18-bit RGB and 20-bit YUV422

·           D-PHY v1.2 up to 2.5Gbps/lane and up to 4 lanes/ port

·           Supports superframe unpacking capability

·           HSMT link for system and power flexibility

·           Supports two HSMT links

·           2.0, 3.2, 4.0, or 6.4Gbps forward-link rates (NRZ)

·           8.0 or 12.8Gbps forward-link rates (PAM4)

·           100Mbps backward-link rate

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

·           Robust communication in automotive environment

·           Backward channel adaptive equalization

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

·           Video data error correction and retransmission

·           Digital audio with I2S and TDM interface

·           Supports forward-direction 7.1 HD audio and up to 192kHz sample rate

·           Supports backward-direction 8 channels at 48kHz sample rate or 2 channels at 192kHz sample rate

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

·           Supports SPI (master/slave up to 50Mbps), UART (Tx/Rx), GPIO, and interrupt for touch-screen and other use cases

·           Functional safety

·           AEC Q100 Grade-2 and ISO 26262 ASIL-B

·           CRC protection of control data over I2C and SPI

·           Video watermark and test pattern generation

·           Supports line fault detection and voltage monitor

·           Programmble spread spectrum for EMI reduction

·           9mm x 9mm 64-pin QFN package

Figure 1. Application Example

Figure 2. NS6168 Pinout