DS90UB949TRGCTQ1

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The DS90UB949TRGCTQ1 is an ULVDS transmitter that serializes four low-voltage differential signals (LVDS) data streams from Embedded DisplayPort (eDP) source devices into a ULVDS data stream for high-speed data communication. The DS90UB949TRGCTQ1 is an interface bridge from eDP to ULVDS communication, designed to simplify the complex serial link protocol required for communication between associated source and display devices. This integrated device can be used for applications like tablets, Ultrabooks, and All-in-One desktops.

Application Field

The DS90UB949TRGCTQ1 serializes four LVDS data streams from an eDP source device into a ULVDS data stream, which is optimized for long reach high-speed data communication between CPUs and displays. It supports a panel resolution up to 2560x1600 and supports a data rate up to 5.4 Gbps. The transmitter eventually increases the bandwidth of the system, while improving image quality by compelling clock and data recovery. All this, thanks to its ultra-low power consumption, helps contribute toward extending the battery life of the host device.

Working Principle

The DS90UB949TRGCTQ1 uses ULVDS (ultra-low voltage differential signaling) protocol and transmits data over one differential pair utilizing only one clock and one data line. ULVDS supports a data rate of up to 5.4Gbps through the single output link. The transmitter also converts eDP single/dual lane configurations to a ULVDS 3-lane configuration, thus enabling a high-performance serial link up to 2560x1600x24bpp. The DS90UB949TRGCTQ1 also supports optional hotplug control to enable automated detection of a display device.

The DS90UB949TRGCTQ1 consists of a differential clock and data transmitter. The device contains 4 input differential pairs, accepting Low-Voltage Differential Signaling (LVDS) that includes bit/pixel synchronization. It also includes a deserializer and 4 channels of pixel data output. The LVDS input signals are a pair of complementary signals that can communicate data with a very low voltage. The transmitter translates the four pairs of eDP data streams into a ULVDS format and transmits them through the ULVDS output line. The transmitter supports an easy programming interface, making the device universal for the vast majority of eDP panels.

The ULVDS output of the transmitter has a data rate of up to 5.4Gbps and a reach of up to 4m with various cable types. The total working voltage of the transmitter is 3.3V. The transmitter uses 20-bit control pins, which includes the control pins to enable or disable Adaptive Clocking, to adjust the receiver equalization, to enable or disable hotplug detection and wake-up signals, and other control functions.

Conclusion

Overall, the DS90UB949TRGCTQ1 is a great interface bridge for serializing four low-voltage differential signals from eDP source devices into a ULVDS data stream for high-speed data communication. It supports resolutions up to 2560x1600 which makes it suitable for applications like tablets, ultrabooks, and All-in-One desktops. Its easy programming interface makes it compatible with a wide range of eDP panels and its low power consumption ensures that the device does not drain the battery quickly. With the help of this tiny but powerful device, you can guarantee reliable data communication between your eDP source device and ULVDS display device.

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