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Texas Instruments DS90UR905QSQ/NOPB
- Part No.:
- DS90UR905QSQ/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
DS90UR905QSQ/NOPB.pdf
- Description:
- IC SERIALIZER 5-65MHZ 24B 48WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:228
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Product details
Overview
DS90UR905QSQ/NOPB from Texas Instruments is an automotive-grade FPD-Link II serializer IC that converts 24-bit RGB888 video with HS/VS/DE control signals into a single-pair AC-coupled differential serial stream. It supports pixel clock frequencies from 5 MHz to 65 MHz (140 Mbps–1.82 Gbps), integrates programmable de-emphasis and VOD selection, and operates across –40°C to +105°C for navigation and infotainment displays.
For engineers reviewing the DS90UR905QSQ/NOPB datasheet, DS90UR905QSQ/NOPB pinout, DS90UR905QSQ/NOPB application, or DS90UR905QSQ/NOPB equivalent, key selection considerations include PCLK range compatibility, LVCMOS I/O voltage flexibility (1.8 V or 3.3 V), AEC-Q100 Grade 2 qualification, integrated AC coupling support, and serializer-specific strap pin configuration (CONFIG[1:0], RFB, VODSEL, De-Emph).
Technical Context
The DS90UR905QSQ/NOPB implements a DC-balanced scrambling engine to maintain signal integrity over STP cables up to 10 meters, with selectable output voltage swing (±280 mV or ±420 mV) and de-emphasis tuning for channel loss compensation. Its PLL embeds the pixel clock without requiring a reference clock at the deserializer end.
It features dual-mode control via hardware straps (CONFIG[1:0], RFB, VODSEL, De-Emph) and optional I²C interface (SCL/SDA), enabling configuration of control-signal filtering, latch edge polarity, driver strength, and BIST activation. Power-down mode (PDB) reduces current draw while holding outputs high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCLK Range | 5–65 MHz - supports QVGA to XGA resolution video timing with 140 Mbps–1.82 Gbps serialized data rate |
| Color Depth | 24-bit RGB888 - full-color parallel input with separate HS/VS/DE control signals |
| Output Interface | FPD-Link II LVDS - single-pair differential AC-coupled output (DOUT+/DOUT−) compliant with TI's FPD-Link II standard |
| VOD Selection | ±280 mV or ±420 mV - selectable via VODSEL pin to optimize signal integrity for short or long cable runs |
| De-emphasis | Programmable - enabled via De-Emph pin to compensate for high-frequency loss in STP interconnects |
| Operating Temp | –40°C to +105°C - AEC-Q100 Grade 2 qualified for automotive display systems |
| I/O Voltage | 1.8 V or 3.3 V LVCMOS - flexible host interface compatibility with graphics processors and SoCs |
Pinout & Package
DS90UR905QSQ/NOPB is housed in a 48-pin WQFN package (7.0 mm × 7.0 mm) with exposed thermal pad (DAP = GND). The package supports high-density automotive PCB layouts and requires ≥9 vias under DAP for thermal and electrical grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| R[7:0], G[7:0], B[7:0] | Parallel RGB data inputs | 24-bit LVCMOS inputs with internal pulldowns; accept RGB888 video data aligned to PCLK |
| HS, VS, DE, PCLK | Video timing control inputs | LVCMOS sync/control signals; pulse width and transition limits enforced per CONFIG[1:0] setting |
| DOUT+, DOUT− | FPD-Link II serial outputs | AC-coupled LVDS differential pair; require 100-nF series capacitors per TI layout guidelines |
| VODSEL, De-Emph, CONFIG[1:0], RFB | Configuration straps | Hardware-selectable modes for VOD level, de-emphasis, serializer-deserializer pairing, and latch edge polarity |
| PDB | Power-down control | Active-low enable; drives DOUT± high-Z and shuts down PLL when asserted low |
| SCL, SDA | I²C interface | Optional 2-wire serial bus for register access; open-drain SDA requires external pullup to VDDIO |
| VDDIO, VDDL, VDDP, VDDHS, VDDTX | Power domains | Separate 1.8 V supplies for I/O, logic, PLL, high-speed TX logic, and output drivers - decoupling critical per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| DC-balanced scrambling | Ensures no DC bias on AC-coupled STP cable, enabling reliable operation over 10-meter runs without common-mode drift |
| Configurable output VOD | ±280 mV (default) or ±420 mV (long-cable mode) - selected by VODSEL pin to match channel loss profile |
| Hardware strap control | Eliminates need for boot-time firmware initialization; CONFIG[1:0], RFB, and De-Emph pins set core link behavior at power-up |
| Built-in BIST mode | At-speed link validation via BISTEN pin; PASS output reports error-free transmission status for production test |
| AEC-Q100 Grade 2 | Qualified for automotive cabin environments - validated across –40°C to +105°C with >8-kV HBM ESD robustness |
Applications
| Automotive Navigation Display | Automotive Infotainment Head Unit |
|---|---|
Use Scenario: High-resolution map rendering and real-time traffic overlay on central dashboard LCD. IC Role / Device Role / Timing Role: Serializer converting SoC's RGB888 output to FPD-Link II for ECU-to-display cable harness. Use Value: Reduces 30+ parallel traces to 2-wire differential pair, cutting connector size, weight, and EMI emissions while maintaining 65-MHz timing fidelity. |
Use Scenario: Video streaming from media processor to rear-seat entertainment screen. IC Role / Device Role / Timing Role: Serializer driving AC-coupled STP cable to remote deserializer with configurable de-emphasis for variable cable lengths. Use Value: Enables plug-and-play cable length scalability (up to 10 m) without redesigning timing margins or adding repeaters. |
| Instrument Cluster Graphics Interface | Digital Rearview Mirror Video Link |
Use Scenario: Transmitting safety-critical vehicle speed and ADAS alerts to TFT cluster with minimal latency. IC Role / Device Role / Timing Role: Low-jitter serializer embedding PCLK into serial stream; LOCK status not required as no deserializer feedback loop. Use Value: Guarantees deterministic pixel-to-display timing with no frame buffer delay - critical for <50-ms response requirements. |
Use Scenario: Sending camera feed from exterior mirror module to interior display with EMI-sensitive analog sensor nearby. IC Role / Device Role / Timing Role: Serializer with SSCG-compatible outputs and spread-spectrum-capable deserializer partner (DS90UR906Q-Q1). Use Value: Meets CISPR-25 Class 5 radiated emissions limits via LVDS signaling and optional SSCG coordination at system level. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPD-Link II serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90UR905QSQX/NOPB | Tape-and-reel variant of same silicon; identical electrical specs, timing, and pinout | No functional difference; used for automated SMT assembly vs. sample evaluation | Select DS90UR905QSQX/NOPB for volume production; DS90UR905QSQ/NOPB for prototyping or small-batch builds |
| DS90UR907QSQ/NOPB | Higher PCLK support (up to 85 MHz); added MIPI D-PHY compatibility mode; different strap mapping | Targets WQXGA+ displays and next-gen automotive platforms requiring broader bandwidth or protocol flexibility | Choose DS90UR907QSQ/NOPB only if >65 MHz PCLK or MIPI coexistence is required; not drop-in compatible due to pin function changes |
Compared with DS90UR905QSQX/NOPB, DS90UR905QSQ/NOPB offers identical performance in tray packaging for bench validation, while DS90UR907QSQ/NOPB extends bandwidth and adds protocol versatility at the cost of layout and firmware rework.
Availability
DS90UR905QSQ/NOPB is available at Aetrix Electronics and suitable for automotive navigation displays, infotainment head units, and digital instrument clusters requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for DS90UR905QSQ/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader focused on analog, embedded processing, and connectivity technologies, with deep expertise in automotive electronics and high-speed interface solutions.
The DS90UR905QSQ/NOPB belongs to TI's FPD-Link II serializer family, designed specifically for robust, low-EMI video transport in automotive cabin environments where reliability, temperature resilience, and cable-length flexibility are critical.
FAQ
What is the maximum supported cable length for DS90UR905QSQ/NOPB?
The DS90UR905QSQ/NOPB supports AC-coupled STP interconnect cables up to 10 meters in length when paired with the DS90UR906Q-Q1 deserializer. This assumes proper termination, 100-Ω characteristic impedance, and use of de-emphasis (enabled via De-Emph pin) for longer runs. Cable quality, shielding, and routing practices directly impact achievable length at 65-MHz PCLK.
Does DS90UR905QSQ/NOPB require an external reference clock?
No, DS90UR905QSQ/NOPB does not require an external reference clock. It embeds the pixel clock (PCLK) into the serialized data stream using its internal PLL. The companion deserializer (e.g., DS90UR906Q-Q1) recovers both clock and data from the serial stream without needing a separate reference - eliminating skew and simplifying system timing.
How is the latch edge polarity configured on DS90UR905QSQ/NOPB?
The latch edge polarity for parallel RGB and control signals on DS90UR905QSQ/NOPB is set by the RFB pin: RFB = 1 selects rising-edge latching, and RFB = 0 selects falling-edge latching. This hardware strap configures the sampling edge relative to PCLK and must be stable before device power-up to ensure correct initialization.
Can DS90UR905QSQ/NOPB interface with non-TI deserializers?
DS90UR905QSQ/NOPB supports backward compatibility with older TI devices (e.g., DS90C124, DS90UR124) via CONFIG[1:0] strap settings. However, it is not interoperable with non-TI FPD-Link II deserializers due to proprietary scrambling, DC-balance encoding, and timing recovery algorithms unique to TI's chipset implementation.
What is the purpose of the BISTEN pin on DS90UR905QSQ/NOPB?
The BISTEN pin on DS90UR905QSQ/NOPB enables built-in self-test mode. When asserted high, DS90UR905QSQ/NOPB transmits a known pseudorandom pattern; the linked deserializer (e.g., DS90UR906Q-Q1) validates reception and asserts PASS if error-free. This provides production-ready link integrity verification without external test equipment.
DS90UR905QSQ/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Serializer
- Data Rate:
- 1.82Gbps
- Input Type:
- LVCMOS
- Output Type:
- FPD-Link II, LVDS
- Number of Inputs:
- 24
- Number of Outputs:
- 1
- Voltage - Supply:
- 1.71V ~ 1.89V, 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-WQFN (7x7)
DS90UR905QSQ/NOPB FAQ
1.How can I place an order for DS90UR905QSQ/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90UR905QSQ/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS90UR905QSQ/NOPB reliable?
The price and inventory of DS90UR905QSQ/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90UR905QSQ/NOPB is usually 5 days.
3.What payment methods are accepted for DS90UR905QSQ/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90UR905QSQ/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90UR905QSQ/NOPB?
DS90UR905QSQ/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90UR905QSQ/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS90UR905QSQ/NOPB?
For technical support, including DS90UR905QSQ/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90UR905QSQ/NOPB requirements.
6.How does Aetrix verify that DS90UR905QSQ/NOPB is sourced from the original manufacturer or authorized distributors?
All DS90UR905QSQ/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS90UR905QSQ/NOPB meets industry standards.
7.What is the process for return or replacement of DS90UR905QSQ/NOPB?
All DS90UR905QSQ/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS90UR905QSQ/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS90UR905QSQ/NOPB part is unused and in its original packaging.
Return procedure for DS90UR905QSQ/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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