Transceivers add HD video to existing UTP cables and connectors

Transceivers announced by Analog Devices enable HD video over existing unshielded twisted pair (UTP) cables and unshielded connectors in automotives. As a result, OEMs can upgrade easily from standard-definition cameras to HD cameras for superior resolution and image quality required for today’s automotive camera applications, says Analog Devices (ADI).

The ADV7990 and ADV7991 transmitters and ADV7380 and ADV7381 receivers use ADI’s Car Camera Bus (C2B) technology, claimed to provide savings in weight, bulk, cost, and reduce cable-routing constraints when compared to other automotive link solutions.

The C2B transceivers are defined and designed specifically for automotive applications. They support “excellent visual quality” over the unshielded infrastructure, and employ on-chip EMC/EMI mitigation techniques enabling full compliance to industry mandates for EMC, EMI, and ESD robustness. The cable-compensation design supports 30m cable runs with multiple in-line connections for resolutions up to 2Mpixels at 30Hz or 1Mpixel at 60Hz.

According to ADI, C2B provides seamless transition from mainstream low-resolution NTSC to high-definition cameras, while reducing cable harness cost and weight.

The ADV7990/91 and ADV7380/81 transceivers feature negligible latency along with uncompressed transmission. The bidirectional control channel uses the same cable and thus incurs no additional costs. These devices support a 75-MHz pixel rate (75MHz Y, 75MHz C) frozen frame detection while the bi-directional control function supports I2C, interrupt/status and general-purpose I/O (GPIO).

The ADV7990 is available now, in a 32-LFCSP, with full production quantities scheduled for January 2018. The ADV7991 is available now in production quantities and in a 40-LFCSP. The ADV7380 is a 48-LFCSP available now and in full production in January. The ADV7381 is in the same package and available now in production quantities.

The transceivers will be demonstrated at the ADI booth at electronica 2018 (13 to 16 November) Stand C4-111.

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