Digital Cluster Automotive Reference Design

This complete design and know-how integration make DCARD an adaptable and high-performance resolution for the way forward for in-car digital shows.

The Jacinto automotive processor Digital Cluster Automotive Reference Design (DCARD) is a cheap resolution tailor-made for reconfigurable digital cluster techniques in automotive purposes. This design gives a whole 6-layer printed circuit board (PCB) resolution that allows easy 60 frames per second (fps) digital shows at 1920×720 decision whereas sustaining an optimized invoice of supplies (BOM). It additionally consists of important options like single-zone audio output for warning chimes, CAN-based wake-up capabilities, and Ethernet connectivity, which permit seamless integration into trendy automotive techniques. The modularity of DCARD presents additional customization choices, permitting builders to include options comparable to digicam inputs for rear-view or driver monitoring, in addition to secondary show outputs for heads-up shows (HUD). DCARD’s adaptability makes it very best to be used in reconfigurable digital clusters, hybrid clusters with lively graphics, heads-up shows, and driver monitoring and identification techniques.

The design TIDEP-01002 by Texas Devices (TI) revolves across the Jacinto DRA71x automotive processor, which is provided to deal with complicated 3D cluster graphics and ship a constant 60 fps expertise on a 1920×720 cluster show. The DRA71x processor can also be geared up with a C66x DSP, which permits superior functionalities like driver monitoring and identification. Audio output for warning chimes is managed by the TAS2505 Class-D amplifier, a low-power digital speaker amp that helps high-quality 24-bit digital I2S knowledge mono playback. That is important for delivering clear audio alerts to drivers in actual time. For show output, DCARD makes use of the DS90C189-Q1 serializer, changing RGB output from the DRA71x processor right into a twin OpenLDI output that drives the 1920×720 decision show. This serializer acts as a low-power bridge, minimizing the scale of the RGB interface, which is essential for compact automotive purposes the place house optimization is crucial.

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The  technical specs spotlight its optimized energy administration options and connectivity options. Energy administration is achieved by way of Texas Devices™ elements such because the LM87523 and LM5141, which assist cut back the general BOM by maximizing vitality effectivity. The design helps CAN wake-up by way of the TCAN1043 CAN transceiver, offering strong community integration and fast system responsiveness. Ethernet connectivity is enabled by way of the DP83TC811 PHY, permitting high-speed knowledge communication throughout the automotive system. For show output, the OpenLDI cluster show is supported by the DSC90C189 serializer, whereas audio output is dealt with by the TAS2505 amplifier. The addition of a secondary HDMI output permits seamless HUD integration. Moreover, the design is predicated on a 6-layer PCB, which is essential in minimizing part footprint and system price, making it an environment friendly and scalable resolution for automotive producers trying to implement superior digital cluster applied sciences of their automobiles. 

TI has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) format, and extra. The corporate’s web site has extra knowledge concerning the reference design. To learn extra about this reference design, click on right here.