DS90C185SQX
DS90C185SQX - 2.94Gbps LVDS Serializer | Texas Instruments
Texas Instruments DS90C185SQX is a low-power FPD-Link serializer for portable, battery-powered display systems, supplied in a 48-pin WQFN package. It serializes 24-bit RGB video and three video-control signals, converts them to LVDS-compatible levels, and transmits them through a reduced-width interface containing four data lanes and one clock lane. The verified distributor listing identifies the device as a 2.94 Gbps serializer with 28 inputs and four outputs. This architecture reduces the number of conductors required between a host GPU or display controller and an LVDS-compatible panel while supporting single-lane operation for compact portable equipment.
A serializer is an interface IC that converts parallel data into a high-speed serial stream for transmission over a reduced-pin-count link. In the signal-chain hierarchy, the DS90C185SQX belongs to the FPD-Link and LVDS serializer class, operates between digital video logic and panel-facing communication circuitry, and ultimately supports display and power-management subsystems. Its four-data-plus-clock organization is compatible with FPD-Link 1 deserializers and many LVDS-based displays, including panels using FlatLink or single-pixel LVDS input interfaces.
The principal verified benefits are the 2.94 Gbps maximum signaling rate, 28-input serializer architecture, four outputs, low-power operation intended for portable equipment, and compatibility with a broad installed base of FPD-Link 1 and LVDS displays. A single 1.8 V supply reduces power dissipation in battery-powered systems. The manufacturer describes a typical 50 mW power figure for the device, although detailed operating-current limits, temperature ranges, and electrical thresholds must be confirmed in the current manufacturer datasheet before a production design is released.
The DS90C185SQX is appropriate for notebook displays, portable instruments, industrial panels, and other systems where a parallel RGB interface would consume excessive connector and routing resources. In a typical implementation, the serializer receives parallel pixel data and control signals, converts them to LVDS-compatible levels, and drives a reduced-width cable or board-to-board link to an FPD-Link 1 receiver or compatible display. The receiver must support the same lane count, signaling format, clocking arrangement, and panel data format.
Design engineers should verify the supported input color format, pixel clock range, LVDS output mapping, synchronization behavior, supply sequencing, and panel impedance requirements against the manufacturer datasheet. PCB layout should provide a continuous return path beneath the high-speed link, minimize stubs, use controlled-impedance routing, and place decoupling capacitors close to the supply pins. The compact 48-pin WQFN package also requires thermal-aware layout with adequate exposed-pad copper where supported by the package drawing.
This page consolidates the verified manufacturer identity, serializer function, speed, interface architecture, package, sourcing links, application guidance, and engineering considerations. Because the supplied source excerpts do not expose a verified distributor price table, complete timing specifications, or the detailed 48-pin pinout, those items are identified explicitly rather than inferred. That distinction allows procurement and engineering teams to separate confirmed product facts from values that still require datasheet review.
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