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Texas Instruments DS90UB901QSQX/NOPB
- Part No.:
- DS90UB901QSQX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
DS90UB901QSQX/NOPB.pdf
- Description:
- IC SER/DESER 10-43MHZ 16B 32WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,593
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Product details
Overview
DS90UB901QSQX/NOPB from Texas Instruments is a FPD-Link III serializer IC designed for automotive camera interfaces, supporting 10–43 MHz pixel clock, 16-bit parallel-to-serial conversion with CRC, bidirectional I²C-compatible control channel, and single differential-pair AC-coupled transmission up to 10 meters. It operates from a single 1.8 V supply and meets AEC-Q100 Grade 2 requirements for rear-view and lane-departure systems.
For engineers reviewing the DS90UB901QSQX/NOPB datasheet, DS90UB901QSQX/NOPB pinout, DS90UB901QSQX/NOPB application, or DS90UB901QSQX/NOPB equivalent, this page delivers verified technical context, validated pin functions, automotive-grade timing integrity data, and confirmed alternative options for camera link design and ECU integration.
Technical Context
The DS90UB901QSQX/NOPB implements embedded clock technology with DC-balanced 8b/10b encoding to enable AC-coupled serial transport over one CML differential pair while maintaining full-duplex I²C control traffic independent of video blanking intervals. Its PLL locks to incoming PCLK (10–43 MHz) without requiring an external reference clock at the deserializer end.
It integrates programmable receive equalization, on-chip termination resistors (80–120 Ω), spread-spectrum clocking support, and lock-status reporting via LOCK pin. The serializer supports remote wake-up from standby mode and provides six GPIOs configurable as inputs or outputs for system-level coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCLK Range | 10–43 MHz - defines supported image sensor resolution and frame rate; enables HD (720p) video streaming at 30 fps. |
| Data Throughput | 160–688 Mbps - determined by PCLK × 16-bit payload; supports 14-bit color + sync + CRC in single stream. |
| Supply Voltage | 1.8 V ±5% (VDDn/VDDD/VDDPLL/VDDCML/VDDT) - single-supply operation simplifies power design; VDDIO supports 1.8 V or 3.3 V. |
| ESD Rating | ±25 kV air / ±10 kV contact (IEC 61000-4-2) on FPD-Link III I/O - ensures robustness in automotive cable harness environments. |
| Operating Temp | −40°C to +105°C - qualified per AEC-Q100 Grade 2 for under-hood and exterior camera module placement. |
| Jitter Performance | 0.396 UI peak-to-peak output jitter at 43 MHz - meets timing margin requirements for reliable deserialization in long-cable links. |
| CRC Protection | 16-bit payload with cyclic redundancy check - detects bit errors in high-noise automotive EMI environments. |
Pinout & Package
DS90UB901QSQX/NOPB is housed in a 32-pin WQFN package (5 mm × 5 mm, RTV0032A), thermally enhanced with exposed DAP grounded via ≥9 vias. All power domains are segregated: VDDPLL (1.8 V PLL), VDDT (1.8 V Tx analog), VDDCML (1.8 V CML driver), VDDD (1.8 V digital core), and VDDIO (1.8 V or 3.3 V I/O).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| DIN[13:0] | Parallel data input bus | 14-bit LVCMOS inputs accepting YUV/RGB pixel data; pull-down enabled for unused lines. |
| PCLK, HSYNC, VSYNC | Timing interface inputs | Synchronize serialization to image sensor timing; edge-triggered with configurable strobe polarity. |
| DOUT+, DOUT− | FPD-Link III differential output | CML outputs driving single twisted-pair; require 100 nF AC coupling capacitors per line. |
| SCL, SDA | Bidirectional I²C control bus | Open-drain pins supporting master/slave mode; require external pull-ups to VDDIO. |
| GPIO[1:0], DIN[3:0]/GPIO[5:2] | Configurable I/O | Six total GPIOs usable for camera status signaling, LED control, or firmware handshaking. |
| PDB | Power-down control | Active-low enable; places device in ultra-low-current state (<135 µA) with register reset on wake. |
| MODE, ID[x] | I²C addressing & mode select | MODE sets master/slave role; ID[x] selects I²C address via resistor divider for multi-camera bus. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded clock + DC-balanced coding | Enables AC-coupled interconnects without DC bias drift; eliminates need for separate clock routing or large coupling caps. |
| Programmable receive equalization | Compensates for frequency-dependent loss in 10-meter shielded twisted-pair cables, preserving signal integrity at 43 MHz. |
| Integrated CML termination | On-die 80–120 Ω differential termination reduces BOM count and PCB layout sensitivity for high-speed differential routing. |
| LOCK output & AT-speed BIST | LOCK pin reports real-time CDR lock status; BISTEN/PASS pins enable in-system link health validation without host intervention. |
| AEC-Q100 Grade 2 qualification | Validated for automotive use across −40°C to +105°C ambient; includes ESD, thermal, and lifetime reliability testing. |
Applications
| Rear-View Camera System | Lane Departure Warning (LDW) |
|---|---|
|
Use Scenario: High-resolution backup camera transmitting 720p video from trunk-mounted sensor to infotainment display. IC Role / Device Role / Timing Role: Serializer converts parallel RGB/YUV data into robust FPD-Link III stream; embeds I²C commands for auto-focus and white-balance adjustment. Use Value: Single-pair cabling reduces harness weight and cost; CRC detection prevents corrupted frame rendering during critical reverse maneuvers. |
Use Scenario: Forward-facing camera feeding real-time lane detection algorithm in ADAS ECU. IC Role / Device Role / Timing Role: Serializer delivers low-latency, jitter-controlled pixel data synchronized to vehicle speed and steering angle inputs. Use Value: AT-speed BIST and LOCK monitoring ensure continuous link integrity; spread-spectrum outputs reduce EMI impact on radar sensors. |
| Parking Assistance Module | Blind Spot Detection (BSD) |
|
Use Scenario: Multi-camera surround-view system fusing inputs from four corner-mounted sensors. IC Role / Device Role / Timing Role: DS90UB901QSQX/NOPB provides deterministic delay (6.386T + 12 ns) enabling precise frame alignment across cameras. Use Value: Programmable GPIOs coordinate camera activation and LED illumination; I²C channel handles lens distortion calibration data. |
Use Scenario: Side-mirror or fender-mounted camera detecting vehicles in adjacent lanes. IC Role / Device Role / Timing Role: Serializer transmits compressed video with minimal added latency; equalization maintains SNR over extended cable runs. Use Value: AEC-Q100 qualification ensures operation in high-temperature door cavities; ±25 kV ESD rating withstands static discharge during service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPD-Link III serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90UB913AQRTVRQ1 | Supports higher PCLK (up to 85 MHz); adds MIPI CSI-2 output; requires external VCO; larger 48-pin WQFN. | Targeted for higher-resolution front cameras (1080p+) and domain controller integration with MIPI processing pipelines. | Select when >43 MHz bandwidth or MIPI compatibility is required; not drop-in due to pin count, power, and register map differences. |
| MAX96705GTJ+T | GMSL2 serializer; supports 12-bit data, 3 Gbps max; integrated HDCP; different control protocol (GMSL vs FPD-Link III). | Used in premium automotive displays with content protection; requires GMSL2 deserializer (e.g., MAX96706) and compatible PHY layer. | Choose for HDCP-secured video paths or when leveraging Maxim's GMSL2 ecosystem; protocol incompatibility prevents direct substitution. |
Compared with DS90UB901QSQX/NOPB, DS90UB913AQRTVRQ1 offers higher bandwidth but increased complexity and footprint, while MAX96705GTJ+T provides HDCP and GMSL2 interoperability at the cost of FPD-Link III protocol divergence-neither is pin- or register-compatible.
Availability
DS90UB901QSQX/NOPB is available at Aetrix Electronics and suitable for automotive vision systems, rear-view camera modules, and ADAS electronic control units requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for DS90UB901QSQX/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 specializing in analog, embedded processing, and automotive ICs, with decades of expertise in high-reliability interface solutions.
The DS90UB901QSQX/NOPB belongs to TI's FPD-Link III automotive serializer family, engineered specifically for low-latency, noise-immune camera-to-ECU video transport in safety-critical ADAS applications.
FAQ
What is the maximum cable length supported by DS90UB901QSQX/NOPB?
DS90UB901QSQX/NOPB supports up to 10 meters of shielded twisted-pair cable when used with its companion deserializer DS90UB902Q and configured with programmable receive equalization. This distance is validated at 43 MHz PCLK with CRC-enabled 16-bit payload and meets AEC-Q100 Grade 2 operating temperature limits.
Does DS90UB901QSQX/NOPB require an external reference clock?
No, DS90UB901QSQX/NOPB does not require an external reference clock. It uses embedded clock technology to recover timing from the serialized data stream, and its internal PLL locks directly to the incoming PCLK (10–43 MHz). The deserializer side also operates without a reference clock.
How is I²C communication implemented on DS90UB901QSQX/NOPB?
DS90UB901QSQX/NOPB implements a bidirectional I²C-compatible control channel using open-drain SCL and SDA pins that operate at VDDIO voltage (1.8 V or 3.3 V). It supports both master and slave modes via the MODE pin and allows multiple devices on the same bus using resistor-programmed ID[x] addressing.
What power supply configurations does DS90UB901QSQX/NOPB support?
DS90UB901QSQX/NOPB requires five dedicated supplies: VDDn/VDDD/VDDPLL/VDDCML/VDDT at 1.8 V ±5%, and VDDIO at either 1.8 V ±5% or 3.3 V ±10%. Each domain powers specific circuit blocks (e.g., VDDIO for LVCMOS I/O, VDDCML for CML drivers), and all must be independently decoupled per TI's layout guidelines.
Is DS90UB901QSQX/NOPB pin-compatible with other TI FPD-Link III serializers?
No, DS90UB901QSQX/NOPB is not pin-compatible with other TI FPD-Link III serializers such as DS90UB913A or DS90UB953. It uses a unique 32-pin WQFN (RTV0032A) footprint with distinct power domain assignments, GPIO mapping, and control pin locations-PCB redesign is required for substitution.
DS90UB901QSQX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Serializer
- Data Rate:
- 688Mbps
- Input Type:
- LVCMOS
- Output Type:
- FPD-Link III, LVDS
- Number of Inputs:
- 14
- 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:
- 32-WQFN (5x5)
DS90UB901QSQX/NOPB FAQ
1.How can I place an order for DS90UB901QSQX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90UB901QSQX/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 DS90UB901QSQX/NOPB reliable?
The price and inventory of DS90UB901QSQX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90UB901QSQX/NOPB is usually 5 days.
3.What payment methods are accepted for DS90UB901QSQX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90UB901QSQX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90UB901QSQX/NOPB?
DS90UB901QSQX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90UB901QSQX/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 DS90UB901QSQX/NOPB?
For technical support, including DS90UB901QSQX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90UB901QSQX/NOPB requirements.
6.How does Aetrix verify that DS90UB901QSQX/NOPB is sourced from the original manufacturer or authorized distributors?
All DS90UB901QSQX/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 DS90UB901QSQX/NOPB meets industry standards.
7.What is the process for return or replacement of DS90UB901QSQX/NOPB?
All DS90UB901QSQX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS90UB901QSQX/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 DS90UB901QSQX/NOPB part is unused and in its original packaging.
Return procedure for DS90UB901QSQX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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