DS90C185SQX - 2.94Gbps LVDS Serializer | Texas Instruments
MPN: DS90C185SQX ✓ نشطDS90C185SQX نظرة عامة
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.
بدائل مباشرة لـ DS90C185SQX — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
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اطلب بدائلDS90C185SQX المواصفات
| Product Type | FPD-Link (LVDS) serializer |
| Maximum Data Rate | 2.94 Gbps |
| Serializer Input Count | 28 inputs |
| Output Count | 4 outputs |
| Supported Video Data | 24-bit RGB |
| Video Control Signals | 3 signals |
| Serialized Lane Format | 4 data + clock (4D+C) |
| Output Interface | LVDS-compatible |
| Receiver Compatibility | FPD-Link 1 deserializers and compatible LVDS displays |
| جهد التغذية | 1.8 V |
| Typical Power Dissipation | 50 mW typ. |
| Power Supply Count | 1 |
| العلبة | 48-pin WQFN (NJV), 6 x 6 mm |
| نوع التركيب | Surface mount |
دليل تكوين أطراف DS90C185SQX 48-pin wqfn (njv), 6 x 6 mm
تكوين الأطراف لـ DS90C185SQX (حزمة 48-pin wqfn (njv), 6 x 6 mm). يتم تعريف ترقيم الأطراف والوظائف ومخططات التوصيل في ورقة البيانات الفنية من الشركة المصنعة. راجعها للحصول على البصمة الدقيقة وإرشادات اللحام.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ DS90C185SQX.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
DS90C185SQX مناسب لـ 6 التطبيقs: Portable Notebook Display Interface, Battery-Powered Portable Instrument Display, Industrial Control Panel Display, Small-Form-Factor Embedded Display, Medical Diagnostic Display, Low-Power Video Link to LVDS Panel.
Portable Notebook Display Interface
The DS90C185SQX fits portable notebook and tablet designs where parallel RGB routing would consume too many connector pins and board area. It accepts 24-bit RGB plus three control signals, serializes them into a four-data-plus-clock LVDS-compatible link, and operates from a single 1.8 V supply with 50 mW typical dissipation. This reduction is valuable in battery-powered systems because it can shorten the display interconnect and simplify connector assignment. The selected panel or receiver must explicitly support FPD-Link 1, FlatLink, or a compatible single-pixel LVDS input, and the host GPU must provide the required parallel pixel timing and control signals. Engineers should verify pixel-clock coverage, power-up ordering, and the panel's supported color and refresh-rate modes in the manufacturer documentation.
Battery-Powered Portable Instrument Display
The DS90C185SQX is suitable for portable measurement and diagnostic instruments that use an LCD or other compact LVDS-compatible panel. Its low-power 1.8 V architecture supports a four-data-plus-clock connection rather than a wide parallel bus, reducing board-routing congestion around the display connector. The 2.94 Gbps serializer capability supports a compact, high-speed digital display link, while the reported 50 mW typical dissipation helps limit energy use between measurement events. Integration requires confirming that the instrument controller can produce 24-bit RGB plus the three supported video-control signals. Layout should preserve controlled-impedance routing and a continuous ground reference beneath the high-speed pairs, because connector launches and return-path discontinuities can degrade LVDS signal integrity.
Industrial Control Panel Display
The DS90C185SQX can reduce the interface width between an embedded graphics controller and an industrial LVDS display. Its 4D+C serial output replaces a broad parallel RGB connection, which can simplify enclosure routing and improve scalability where connector space is constrained. The device remains appropriate for factory equipment because the supplied evidence confirms the core display interface rather than a specific environmental qualification. Before selection, verify the panel's lane count, accepted pixel clock, resolution, color format, and synchronization requirements against the DS90C185 datasheet. Industrial systems should also plan input filtering, power sequencing, grounding, and display-cable protection independently, since none of those protections are specified by the serializer alone.
Small-Form-Factor Embedded Display
The DS90C185SQX is a practical fit for compact embedded systems in which a parallel display bus would occupy too much PCB routing space. The 48-pin WQFN package places the 1.8 V serializer close to the display connector, while the reduced-width LVDS-compatible interface helps preserve layout flexibility. Its confirmed 2.94 Gbps rate and support for 24-bit RGB plus three control signals make it appropriate for compatible FPD-Link 1 panels. The system integrator must ensure that the selected display receiver accepts the serializer's data and clock arrangement and that the embedded controller supplies correctly timed pixel data. Thermal design should use the package's exposed pad as specified by the manufacturer and preserve copper around the WQFN without violating assembly keep-out rules.
Medical Diagnostic Display
The DS90C185SQX can support a compact diagnostic display interface when the chosen monitor accepts a compatible FPD-Link 1 or LVDS input. Serializing 24-bit RGB and three video-control signals into a four-data-plus-clock link can reduce connector and routing demand in a portable medical enclosure. The 1.8 V supply and 50 mW typical power figure are useful for battery-operated instruments, but serializer low power alone does not establish total-system suitability. Medical-system engineers must verify display timing, image integrity, electrical isolation requirements, EMC controls, and the complete acquisition-to-display signal chain. They should also validate the exact panel and any downstream deserializer against the current manufacturer documentation rather than assuming all LVDS panels use an equivalent mapping.
Low-Power Video Link to LVDS Panel
The DS90C185SQX serves as the transmit-side element in a low-power video link ending at an FPD-Link 1 deserializer or compatible LVDS panel. It accepts the host controller's parallel pixel bus and produces four data lanes plus a clock, reducing the number of traces crossing the system boundary. This architecture is useful when the host GPU and display are separated by a connector or cable and direct parallel routing is impractical. The design must preserve controlled differential impedance and provide a nearby ground reference across connector and cable transitions. Signal integrity validation should include rise-time and fall-time behavior, lane skew, ringing, and simultaneous switching effects using the exact panel input model. The display must support the same pixel format and timing; physical LVDS compatibility alone is insufficient.
بيانات مرجعية هندسية لـ DS90C185SQX — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Manufacturer | Texas Instruments |
| Package | 48-pin WQFN (NJV), 6 x 6 mm |
| Maximum Data Rate | 2.94 Gbps |
| Serializer Input Count | 28 inputs |
| Output Count | 4 outputs |
| Supply Voltage | 1.8 V |
| Typical Power Dissipation | 50 mW typ. |
| Supported Video Data | 24-bit RGB plus 3 control signals |
| Serialized Lane Format | 4 data + clock (4D+C) |
| Display Compatibility | FPD-Link 1 deserializers and compatible LVDS displays |
أبرز الفروقات
- Reduced-width display serialization (مقابلA direct parallel RGB display interface)
- Established FPD-Link display interoperability (مقابلA proprietary point-to-point video link)
- Portable-system power orientation (مقابلA higher-power generic parallel display interface)
ملاحظات التصميم
Route the four data lanes and clock as a controlled-impedance LVDS interface over a continuous reference plane. Avoid stubs, test pads, package escapes, and connector transitions that create impedance discontinuities. Keep the serializer and receiver on compatible ground layers and confirm the target impedance with the PCB fabricator because the supplied excerpts do not state a required differential impedance value.
Place the 1.8 V decoupling network immediately adjacent to the supply and ground pins, with the smallest capacitor closest to the package. Follow the current TI datasheet schematic and layout examples for capacitor type, voltage rating, and placement because those details are not present in the supplied excerpts. Check startup current, supply tolerance, sequencing, and any panel-level backfeed before enabling the serializer.
Do not assume that every LVDS display is compatible with the DS90C185. The panel must support FPD-Link 1 or the specified FlatLink single-pixel interface, and its lane mapping, pixel clock, resolution, color format, and synchronization expectations must match the host source. A physical LVDS connector alone does not guarantee protocol or timing compatibility.
The reported 50 mW typical device dissipation is generally modest, but total junction temperature still depends on ambient temperature, copper area, and the exposed-pad connection specified for the WQFN. Use the manufacturer land pattern and thermal guidance, avoid restricting exposed-pad copper where the package drawing permits thermal vias, and confirm maximum temperature requirements in the current datasheet.
معلومات الامتثال
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements appear in the supplied verified excerpts. These fields remain unknown rather than being inferred.
