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APIX2 Multichannel SerDes with 3 Gbit/s for Video, Audio, Data and Ethernet with Daisy Chain Support


INAP375T APIX2 Transmitter

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User Manual

Beside the datasheet there is a detailed user manual available.
Please login as NDA user.


The INAP375T together with an APIX2 receiver device offers the next generation high speed digital serial link for DISPLAY and CAMERA applications. It provides a DC-balanced, AC coupled low latency, point-to-point link over shielded twisted pair (STP) cables. Its scalable physical layer provides bandwidth of up to 3 GBit/s at lowest EMI. The INAP375T supports popular automotive displays with video resolutions such as 1600x600 pixels and refresh rates of up to 100Hz. The device offers a flexible video interface, configurable to handle 1 or 2 independent video streams, with input interfaces such as parallel RGB (1x24 Bit or 2x10 Bit) or openLDI (“LVDS”) e.g. 2x (4 lanes + clock). Software adjustable driver characteristics and configurable operating modes allow the transmission of 3 GBit/s at distances of up to 12m over a single pair of wires. In addition to the video transmission the INAP375T provides completely independent Full Duplex Communication channels. Using the internal AShell protocol, data transfers are protected by error detection and retransmission mechanisms. Offering a Media Independent Interface (MII), the INAP375T can be directly connected to an ethernet Media Access Controller, offering full network capabilities through the APIX link. Additionally, the link is optimized to carry low latency GPIO signals for reset or synchronization purposes. The built-in audio path allows synchronous transmission of up to 4 stereo audio channels, with highly precise clock regeneration at the receiver for high-end rear-seat entertainment.


  • Backwards compatibility with APIX1
  • 500 MBit/s, 1 GBit/s and 3 GBit/s sustained downstream link bandwidth for video data rates up to 2591 MBit/s
  • up to 187.5 MBit/s upstream link bandwidth
  • Supports 2 independent video streams
  • Configurable video interface
    – Parallel RGB (10,12,18 or 24 Bit)
    – OpenLDI compliant LVDS interface[1] with Single Pixel Format (18 or 24 Bit)
    – Parallel Bulk Data Mode (10,12,18,24 Bit)
  • Video resolutions up to HD resolutions
  • Configurable full duplex communication channel for up to 2 receivers (daisy chain)
  • Media Independent Interface
  • SPI data interfaces
  • I²C Master interface
  • GPIOs for direct signalling and camera synchronization support
  • Embedded AShell
  • I²S Audio interface
    – supports 16/24/32 Bit word length
    – supports up to 192kHz sampling
    – TDM support for up to 8 channels
  • Diagnostic Features:
    – Built-In PRBS Generator
    – Embedded diagnostics
  • Up to 12m distance at 3 GBit/s


  • Central Information Displays
  • Round View Camera Systems
  • Head up Displays
  • Cluster Displays
  • Rear-Seat Entertainment System
  • Stereo Camera Systems
  • Rear View Camera Systems
  • Sensor Fusion Systems
  • Automotive Driver Assistance

INAP375T(AQ) Block Diagram

INAP375T Application

Soft- and Hardware Tools

Tool Description Order ID:
INAP375T Transmitter Board INAP375T APIX2 Transmitter main board, 2x HDMI/DVI 24bit video input, HSD APIX2 serial link output, USB control interface, audio input (optional) APIX2_ADK_TX
INAP375T Extender Board I/O Extender Board for direct access to INAP375T pins. Fits to APIX2_ADK_TX APIX2_ADK_TX_EXT
INAP375T/R Ethernet Board APIX2 Ethernet Extender Board for Transmitter and Receiver Main board, 3-port 100 Mbit Ethernet switch, allows to access MII interface of INAP375x device. Fits to APIX2_ADK_TX, APIX2_ADK_RX and APIX2_ADK_RX_HDMI APIX2_ADK_ETH
APICO Software Tool to configure APIX2 devices, configuration wizard, dependency check, plausibility check, status registers, etc. download
IBIS Model IBIS Software Model of INAP375T download
Errata Errata for INAP375T v1.3 User Manual (NDA users (login) only)

Landing patterns

Format zip
Allegro 375T    375TAQ
Altium 375T    375TAQ
PADS 375T    375TAQ
BXL 375T    375TAQ


Application Notes

Application Notes Description Download
AN202 POA: Power over APIX Login or register
AN203 APIX2 Transfer Channel Requirements Login or register
AN204 APIX2 Physical Layer Compliance Login or register
AN206 INAP3xxT/R Diagnostic Features Login or register
AN207 APIX2 - Transmitter Line Driver Setup Login or register
AN208 APIX2 Daisy Chain Setup Login or register

ordering information

part number package packaging
temp status

LQFP 14x14 mm


-40°C-105°C active

LQFP 14x14 mm


-40°C-105°C active

AQFN 9x9 mm


-40°C-85°C active

AQFN 9x9 mm