DS90UB941ASRTDRQ1

Overview

The DS90UB941ASRTDRQ1 is a dual-channel MIPI DSI to FPD-Link III bridge serializer designed for automotive applications. It supports pixel clock frequencies up to 210 MHz, enabling resolutions such as 3K (2880x1620) at 30Hz, QXGA, 2K, WUXGA, and 1080p60 with 24-bit color depth. The device features two DSI input ports, each with four data channels operating at rates up to 1.5 Gbps per channel. It provides single-link output at up to 105 MHz or dual-link output at up to 210 MHz. Packaged in a 64-pin VQFN, it operates within an ambient temperature range of -40°C to +105°C and holds AEC-Q100 Grade 2 qualification.

Feature Summary

• Supports symmetric and asymmetric video separation to accommodate varying display configurations in information entertainment systems.
• Integrates video data across differential pairs to reduce interconnect size and weight while maintaining high-speed serial streaming.
• Enables full-duplex control and audio transmission alongside video data over the same high-speed serial link.
• Utilizes low-voltage differential signaling and data scrambling to minimize electromagnetic interference.

Applications

• Automotive information entertainment systems
• IVI audio hosts and HMI modules
• Central information displays
• Digital instrument clusters

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and tape-and-reel specifications. Confirm that the component meets the required AEC-Q100 Grade 2 environmental standards for your target application. Cross-reference the datasheet revision history to validate compatibility with existing system designs and firmware configurations before finalizing procurement orders.

Selection Notes

Select this serializer when interfacing MIPI DSI sources with FPD-Link III deserializers requiring dual-channel support. Ensure the host processor can provide the necessary DSI lane configuration and clock signals. Verify that the downstream deserializer model, such as the DS90UB940N-Q1 or DS90UB948-Q1, matches the selected link mode. Consider cable length and EMI constraints when choosing between single-ended coaxial or shielded twisted pair interconnects.

Part Context

This component belongs to the DS90UB941AS-Q1 series of bridge serializers. It is specifically engineered to replace discrete solution architectures by integrating multiple video streams into a standardized automotive interface. The device complements other members of the FPD-Link ecosystem, providing a scalable solution for multi-display automotive infotainment networks.

Replacement Considerations

The DS90UB941ASRTDTQ1 is a related variant within the same family. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure that any replacement part maintains the required automotive qualification status and functional safety documentation for ISO 26262 compliance.

FAQ

Does the DS90UB941AS support burst mode operation?

Yes, the device supports burst mode for DSI HS video modes. This feature helps reduce power consumption on the DSI interface. External reference clock connections may be required when operating in this mode.

How many virtual channels are supported?

The device supports four virtual channels on the DSI interface. Asymmetric separation allows for flexible mapping of these channels to the FPD-Link outputs.

Can the device operate in single-link mode using only one DSI port?

Yes, single-link mode can function with a single DSI port connected. The device automatically detects the active port configuration and maps the video stream to the corresponding FPD-Link output.