APIX3 Twin Transmitter with DisplayPort™ Input,
DP MST and repeater support

The INAP567TAQ / INAP597TAQ is a high-speed digital multi-channel transmitter for infotainment applications. Its scalable physical layer is based on the APIX3 technology, providing backward compatibility to APIX2. It establishes DC-balanced, AC coupled, low latency, point-to-point links over Coax, Shielded Twisted Pair (STP) or Quad Shielded Twisted Pair (QSTP) cables.

The INAP567TAQ / INAP597TAQ supports up to 6 Gbps per lane and supports the combination of both PHYs for dual-lane operation, resulting in up to 12 Gbps bandwidth to one receiver or repeater. In addition, the two PHYs can be used in twin mode for two direct receivers.

Supporting DisplayPortTM Multi-stream Transport (MST), the device accepts up to 4 video streams with different resolutions. It supports popular automotive displays up to UHD video resolutions with up to 30 bit color depth. The VESA DisplayPortTM (DP 1.4) ensures seamless interconnect to state-of-the-art SoCs.

The product version INAP597TAQ supports additionally to act as repeater for High-bandwidth Digital Content Protection (HDCP) between theDisplayPortTM and the APIX link. While supporting HDCP2.3 at the DisplayPortTM interface and HDCP1.4 and HDCP2.3 at the APIX link, it is compatible to all APIX2 and APIX3 receivers.

Further the devices provide two AShell protocol instances, each with 4 independent full-duplex data communication channels, a 10/100 Mbps Ethernet channel over each link and general purpose signals.

INAP567TAQ / 597TAQ Datasheet

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INAP567TAQ User Manual

A Login & signed NDA are needed to download the INAP567TAQ / 597TAQ Datasheet.
Contact Inova for NDA information.


• Flexible physical layer supporting
  – 3 Gbps or 6 Gbps downstream
  – 187.5 Mbps per lane upstream
  – Dual lane support for 3 Gbps, 6 Gbps and 12 Gbps downstream
• Support for 2 receivers (Twin Mode) or up to 4 repeater devices
• Support for up to 4 video channels
• DisplayPortTM 1.4a interface supporting
  – 4 lanes HBR/HBR2 (2.7 or 5.4 Gbps / lane)
  – Single Stream Transport (SST)
  – Multi-stream Transport (MST) for up to 4 videos
  – up to 360 MHz pixel clock per video
  – RGB only
  – Aux Channel (1 Mbps)
  – HDCP2.3 support over DP (INAP597TAQ only)
• HDCP1.4 support at APIX2 link (INAP597TAQ only)
• HDCP1.4 and HDCP2.3 support at APIX3 link (INAP597TAQ only)
• Automatic HDCP repeater functionality
• VESA DSC tunneling
• Typical video resolution examples
  – 2880x1080x24 bit, 60 Hz
  – 3840x2160x30 bit, 60 Hz (via DSC)
  – 7840x2160x30 bit, 60 Hz (via DSC)

• Configurable full-duplex communication channel for Data, Ethernet or GPIO
  – 2x RGMII, RMII or MII interfaces for 100 Mbps Ethernet
  – SPI data interfaces for AShell communication
  – 2 AShell instances (1 per APIX3 link) with 4 channels each
• 8x GPIO pins, which can be mapped to
  – 8 APFlags and 8 Soft flags per AShell in downstream direction
  – 2 APFlags and 2 Soft flags per receiver/repeater in upstream direction
• I2S Audio interface
  – supports 192 kHz sampling rate
  – supports TDM for up to 8 channels
• Diagnostic Features:
  – Internal testpattern generator
  – Continuous link monitoring
• APIX2 backward compatible
• Pin-to-pin compatible to INAP566TAQ/INAP596TAQ

INAP567TAQ / 597TAQ Typical Application
Application Notes





APIX3 Transfer Channel Requirements

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Measurement setup and procedure with the HSD connect

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Design and Layout Guidelines for APIX3

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Schematics Guideline INAP566/596TAQ

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Line Driver Setup for INAP5xxTAQ in APIX2 mode

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APIX3 Compliance

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APIX3 Start-up and Diagnostic

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INAP5xxTAQ/RAQ Quickstart Guide

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APIX3 out of band signaling (OOB) over STP

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Analyzing DisplayPort™ AUX Traffic

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INAPxxT/R Register Dump

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INAP567TAQ/597TAQ Information for functional safety relevant applications

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