APIX3 SerDes chips come with DisplayPort video interface and HDCP 2.3 encryption

APIX3 SerDes chips come with DisplayPort video interface and HDCP 2.3 encryption
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Inova Semiconductors is expanding its APIX3 SerDes family with new video interfaces and encryption technologies. Transmitter devices enable simultaneous transmission of video, audio, Ethernet and data in real time at up to 12 Gbps.
By Christoph Hammerschmidt


Inova Semiconductors announces the INAP566TAQ and INAP596TAQ transmitter ICs, two new members of the APIX3 SerDes product family. APIX (Automotive Pixel Link) is a multi-channel SerDes (Serialiser/Deserialiser) technology developed by Inova for high-resolution video applications in motor vehicles. The ICs are mainly used in vehicle cockpits and infotainment systems. The latest APIX3 generation can establish multiple display connections with a bandwidth of up to 12 Gbit/s; thus it supports HD and Ultra HD displays.

The new INAP566TAQ and INAP596TAQ transmitter ICs offer a DisplayPort 1.4 video interface. Up to four data paths with a maximum of 5.4 Gbit/s each (HBR2) as well as an aux data channel with 1 Mbit/s are available. The INAP596TAQ also supports the encryption of audiovisual content according to the new HDCP 2.3 standard. In terms of HDCP standardisation, the INAP596TAQ works as a repeater. This means that the video encrypted by the video source is decrypted after the DisplayPort input and encrypted again according to HDCP 2.3 before being transmitted to a corresponding APIX3 receiver component. All necessary HDCP keys are stored individually in each component.

Each of the two transmitter components can form an APIX3 link with all APIX3-compatible receivers via a QTP, STP or coaxial cable. The components support various EMC-friendly operating modes with fixed bandwidths of 1.5, 3 or 6 Gbit/s in single-lane operation or 3, 6 or 12 Gbit/s in dual-lane operation with a fixed return channel of 187.5 Mbps.

The new components are designed for common displays (e.g. 2880 x 1080 x 24 bit, 60 Hz) in automobiles. But video resolutions such as Ultra High Definition (UHD) and colour depths of up to 30 bits are also possible. The transmission of DSC-compressed video data is supported.

All components enable the simultaneous transmission of up to eight audio channels. A special feature of the APIX technology is the media-independent interface (MII, RMII) for 100-Mbit Ethernet according to the IEEE standard. An SPI interface for component configuration and data transmission is also available. Switching signals can also be transmitted directly to the receiver via four existing GPIOs (General Purpose Input Output) using the APIX3 link.

The APIX3 components are backwards compatible with the APIX2 predecessor family and, like the latter, offer compensation functions for cable ageing and temperature fluctuations. A new feature of APIX3 is the automatic calibration (link training) of the APIX3 link to the cable medium used. This achieves a very robust, stable and optimised transmission. With its many diagnostic functions, APIX3 supports safety-relevant applications and meets the requirements of the automotive industry with regard to electromagnetic interference immunity and resistance.

Typical applications for the new APIX3 components are infotainment and entertainment systems as well as instrument clusters and head-up displays in vehicles.

The two new APIX3 transmitters INAP566TAQ and INAP596TAQ are available immediately. All devices are qualified according to AEC-Q100 and operate in a wide temperature range from -40 °C to +105 °C. The semiconductor ICs are supplied by Inova in a 151-pin aQFN package. The APIX3 technology has also been licensed to Socionext.


Related articles:

HDMI converter expands APIX3 ecosystem

HDMI-APIX3 converter eases test and validation of display systems

SerDes technology supports up to 12 Gbps

New modules grow test ecosystem for APIX3 technology



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