Introduction

The NS6139 deserializer chip is compliant to Automotive Wired High-Speed Media Transmission (HSMT) standard. Pairing with a compatible HSMT serializer, the NS6139 is used for transmission of forward video and bidirectional audio and control data for automotive display applications. The NS6139 receives the HSMT input over a single or dual HSMT links and converts the input to DP/eDP formatted output.Each HSMT link operates at a fixed data rate up to 12.8Gbps in the forward direction and 100Mbps in the backward direction.The NS6139 supports 15 meters Coaxial cable or 8 meters Shielded Twisted Pair (STP) cable at 12.8Gbps. The NS6139 is AEC-Q100 Grade 2 certified with automotive temperature range of -40°C to +105°C, and meets ISO 10605 and IEC 61000-4-2 ESD requirements.

The NS6139 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.

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

• Dual DisplayPort/Embedded DisplayPort output ports

•24/30-bit RGB, and 16/20-bit YUV422

•DP/eDP v1.4 compliant

•1/2/4-lane main link with up to 5.4Gbps per lane

•Hot Plug Detect and AUX Channel (1Mbps)

•Supports 4K@60Hz video resolution

•Supports video synchronization and splitting

•Supports DSC (Display Stream Compression)

• 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 per link

• Robust communication in automotive environment

•Forward channel adaptive equalization

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

•Video data error correction and retransmission

•Advanced DSP continuously tracking changes in cable, connector, PCB and other channel characteristics over time and temperature

• 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

• CRC protection of control data over I2C and SPI

• Supports image enhancement features

• Video watermark and test pattern generation

• Supports logic and memory BIST

• Supports line fault detection and voltage monitor

• 9mm x 9mm 76-pin QFN package

Figure 1. Application Example

Figure 2. NS6139 Pinout