DS90UB925QSQE/NOPB Integrated Circuits (ICs)

DS90UB925QSQE/NOPB: Serializers, Deserializers and Its Application Field and Working Principle

The DS90UB925QSQE/NOPB is an industry-leading serializer, deserializer, and differential signal translator device. This device is compatible with FPD-Link and is a single-chip solution for separating or serializing multiple Low Voltage Differential Signals (LVDS) and converting them into one single LVDS.

Application Field

The DS90UB925QSQE/NOPB device is suitable for a variety of applications, such as high speed video transmission over twisted-pair cabling, multi-channel LVDS data transmission in automotive modules, and high-speed line-rate applications in server and storage systems. It is used in combination with the DS90UB927QSQE/NOPB differential signal translator to create a FPD-Link III LVDS serial link. This device is suitable for a variety of automotive applications such as vehicle cameras, in-vehicle infotainment systems and autonomous vehicles. The combination of these two devices is used to create high speed networks for in-vehicle communications such as Ethernet and CAN.

Working Principle

The DS90UB925QSQE/NOPB is an 8-channel serializer and a 4-channel deserializer combination which translates low-voltage differential signals (LVDS) into one single LVDS. The serializer takes up to 8 LVDS data streams in at data rates up to 1.5Gbps each, and serializes them into one LVDS stream via a FIFO buffer and a scrambler/descrambler. The deserializer takes one LVDS data stream up to 1.5Gbps and splits it into up to 4 LVDS data streams. Both of the stages feature fail-safe inputs, allowing for an LVDS connection that is robust and reliable.

The device also contains two independent low-power CMOS reference voltage dividers, providing the necessary level-shifting for the 3.3V LVDS devices and 5V LVDS systems. The device features temperature-independent I/O common-mode level shifting and fault detection, which helps ensure high data integrity in the system. The device also features modified LVDS (MLVDS) outputs to reduce electromagnetic interference (EMI) generation. The MLVDS outputs are also compatible with a wide variety of FPD link interfaces.