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Texas Instruments DS90UB927QSQX/NOPB
- Part No.:
- DS90UB927QSQX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
DS90UB927QSQX/NOPB.pdf
- Description:
- IC SERIALIZR FPD LINKLLL 40WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:935
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Product details
Overview
DS90UB927QSQX/NOPB from Texas Instruments is an automotive-grade FPD-Link III serializer IC that converts parallel RGB888 + HS/VS/DE video and up to four I2S audio streams into a single AC-coupled differential serial stream for transmission over 10-meter STP cable. It operates at 5–85 MHz PCLK, supports 720p resolution and 24-bit color depth, and embeds bidirectional I²C control and GPIO channels for display timing and system coordination in automotive infotainment head units.
For engineers reviewing the DS90UB927QSQX/NOPB datasheet, DS90UB927QSQX/NOPB pinout, DS90UB927QSQX/NOPB application, or DS90UB927QSQX/NOPB equivalent, this page delivers verified electrical specs, WQFN-40 package mapping, functional pin roles, real-world automotive use cases, and two validated alternative serializers with documented interface and timing differences.
Technical Context
The DS90UB927QSQX/NOPB implements a parallel-to-serial conversion architecture with integrated PLL for clock embedding, supporting RGB888 video plus three control signals (HS, VS, DE) and up to four I2S audio inputs. Its FPD-Link III CML transmitter drives a single differential pair at 85 MHz with DC-balanced, scrambled data and 800–1200 mVp-p output swing.
It features dual LVCMOS I/O voltage support (1.8 V or 3.3 V), backward compatibility modes for legacy deserializers (DS90UH926/8Q-Q1), repeater functionality, and low-latency bidirectional control via I²C and four GPIOs - all qualified per AEC-Q100 Grade 2 (−40°C to +105°C) with >8-kV HBM ESD rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCLK Range | 5 MHz to 85 MHz - defines supported video timing resolution from WVGA to 720p; determines serializer latency and jitter tolerance. |
| Color Depth | 24-bit RGB888 - enables full HD color fidelity without dithering; requires four LVDS data pairs (RxIN[3:0]±) on parallel input side. |
| Audio Interface | Up to 4 I2S inputs - supports multi-channel surround sound in rear-seat entertainment systems without external audio multiplexing. |
| Supply Voltage | VDD33 = 3.0–3.6 V; VDDIO = 1.8 V ±5% or 3.0–3.6 V - enables flexible host processor I/O voltage matching and low-power operation. |
| ESD Rating | ±8 kV HBM, ±8 kV ISO 10605 contact - meets automotive module-level ESD robustness requirements for display link components. |
| Package | WQFN-40 (6.0 mm × 6.0 mm) - surface-mount footprint compatible with high-density automotive PCB layouts and thermal pad grounding for 5.1°C/W θJB. |
| Operating Temp | −40°C to +105°C - qualified for under-dash and center-stack automotive environments without derating. |
Pinout & Package
DS90UB927QSQX/NOPB uses a 40-pin WQFN package with exposed thermal pad (DAP), requiring ≥9 vias to GND plane. Pin functions are validated per TI SNLS416D Rev D datasheet (pp. 3–5).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RxCLKIN± | LVDS Clock Input Pair | Differential reference for parallel video capture; requires 100-Ω external termination; sets PCLK frequency range (5–85 MHz). |
| RxIN[3:0]± | LVDS Data Input Pairs | Four 24-bit RGB data lanes (LSBs/MSBs configurable via MAPSEL); each pair needs 100-Ω termination. |
| DOUT± | CML Serial Output Pair | AC-coupled FPD-Link III forward channel; drives single STP cable up to 10 m; 800–1200 mVp-p swing. |
| SDA/SCL | I²C Bidirectional Control Bus | Open-drain interface for configuration, status readback, and remote register access; requires 4.7-kΩ pullups to VDDIO. |
| PDB | Power-Down Control Input | LVCMOS active-high enable; pulls device into ultra-low IDDZ state (<2.2 mA) with PLL shutdown and outputs tri-stated. |
| GPIO[1:0] | Bidirectional General-Purpose I/O | Configurable as input/output with internal pulldown; used for panel reset, backlight control, or interrupt signaling. |
Key Features
| Feature | Design Value |
|---|---|
| FPD-Link III Serializer Core | Single-pair AC-coupled serial output reduces cable weight/EMI vs. parallel RGB; supports 10-m STP interconnect with DC balance and scrambling. |
| Bidirectional Control Channel | I²C-compatible bus enables host-side register access and deserializer feedback (e.g., LOCK, PASS status) without extra wires. |
| Backward Compatibility Mode | BKWD pin selects interface timing for interoperability with DS90UH926/8Q-Q1 or DS90UR906/8Q-Q1 deserializers - no firmware change required. |
| Repeater Functionality | REPEAT pin enables transparent signal regeneration for longer cable runs or branched topologies in multi-display systems. |
| Automotive Qualification | AEC-Q100 Grade 2 qualification and >8-kV HBM/ISO 10605 ESD ensure reliability in harsh vehicle environments including temperature cycling and vibration. |
Applications
| Automotive Navigation Displays | Rear-Seat Entertainment |
|---|---|
Use Scenario: High-resolution 720p LCD cluster in instrument panel or center console, driven by graphics processor over short PCB traces. IC Role / Device Role / Timing Role: Parallel-to-serial converter translating RGB888 + HS/VS/DE into FPD-Link III stream for EMI-robust cable transmission to remote display module. Use Value: Eliminates skew between RGB/data/control lines; reduces connector pin count from >40 to 2; maintains <0.29 UI jitter at 85 MHz PCLK. |
Use Scenario: Dual-screen rear-seat system with independent video/audio sources feeding separate displays via shared backbone cable. IC Role / Device Role / Timing Role: Serializer aggregating video and up to four I2S audio streams onto one differential pair, enabling synchronized playback across displays. Use Value: Supports multi-zone audio routing without additional audio codecs; leverages built-in GPIOs for seat position detection and IR receiver handshaking. |
| Driver Assistance Camera Links | Automotive Megapixel Camera Systems |
Use Scenario: Forward-facing ADAS camera sending 720p video to domain controller through engine bay harness subject to EMI and temperature extremes. IC Role / Device Role / Timing Role: Robust serializer with AEC-Q100 Grade 2 rating and 8-kV ESD protection, converting MIPI-like parallel video to noise-immune FPD-Link III. Use Value: Maintains bit error rate ≤1E-9 over 10 m STP at 85 MHz; supports LFMODE for stable lock at low PCLK during night-vision mode. |
Use Scenario: 1.3 MP or higher resolution camera module requiring pixel-accurate timing and low-latency streaming to vision processor. IC Role / Device Role / Timing Role: High-fidelity serializer with <146×T ns latency (T = 1/PCLK) and programmable map selection (MAPSEL) for MSB/LSB lane assignment. Use Value: Enables precise frame synchronization with external triggers; allows backward-compatible integration with legacy DS90UB928Q-Q1 deserializers. |
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 |
|---|---|---|---|
| DS90UB927Q-Q1 | Same silicon; NOPB suffix indicates lead-free, RoHS-compliant packaging with same WQFN-40 footprint and electrical specs. | No functional difference; identical automotive qualification and timing behavior. | Select DS90UB927QSQX/NOPB for production compliance with lead-free soldering processes and environmental regulations. |
| DS90UB953QSQX/NOPB | Supports higher PCLK (up to 112 MHz), adds eDP-compatible video format, and includes enhanced spread-spectrum clocking for lower EMI. | Required for 1080p or dual-lane video; not drop-in compatible due to different register map and power sequencing. | Choose DS90UB953QSQX/NOPB only when upgrading beyond 720p or needing eDP alignment; verify layout changes for VDDIO decoupling and thermal pad. |
Compared with DS90UB927QSQX/NOPB, DS90UB927Q-Q1 offers identical functionality in a non-RoHS-compliant package, while DS90UB953QSQX/NOPB extends bandwidth and video format support but requires redesign of control firmware and PCB layout - making DS90UB927QSQX/NOPB optimal for cost-sensitive, 720p automotive display links.
Availability
DS90UB927QSQX/NOPB is available at Aetrix Electronics and suitable for automotive navigation displays, rear-seat entertainment systems, driver assistance camera links, and megapixel camera modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DS90UB927QSQX/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 connectivity technologies for automotive, industrial, and communications markets.
The DS90UB927QSQX/NOPB belongs to TI's FPD-Link III serializer family, engineered specifically for high-reliability, low-EMI video transmission in automotive display and vision systems - emphasizing AEC-Q100 qualification, cable reach, and seamless interoperability with companion deserializers.
FAQ
What is the maximum cable length supported by DS90UB927QSQX/NOPB?
The DS90UB927QSQX/NOPB supports AC-coupled STP interconnect up to 10 meters while maintaining bit error rate ≤1E-9 at 85 MHz PCLK with DS90UB928Q-Q1 deserializer. Performance depends on cable quality, termination, and noise environment; TI validates this using 100-Ω differential impedance STP with proper common-mode filtering (CMF pin).
Does DS90UB927QSQX/NOPB support both 1.8-V and 3.3-V LVCMOS I/O interfaces?
Yes, DS90UB927QSQX/NOPB supports dual VDDIO operation: 1.8 V ±5% or 3.0–3.6 V. This allows direct interfacing with either 1.8-V graphics processors or 3.3-V microcontrollers without level shifters. I/O thresholds scale accordingly - VIH is 0.65×VDDIO for 1.8 V and 2.0 V for 3.3 V.
How does the backward compatibility mode (BKWD pin) function in DS90UB927QSQX/NOPB?
When BKWD = 1 (pulled high via 10-kΩ resistor), DS90UB927QSQX/NOPB adjusts its timing and protocol to interoperate with DS90UR906/8Q-Q1 deserializers. At BKWD = 0 (default, pulldown), it targets DS90UH926/8Q-Q1. This eliminates need for hardware redesign when migrating between TI FPD-Link generations.
Can DS90UB927QSQX/NOPB transmit audio and video simultaneously?
Yes, DS90UB927QSQX/NOPB concurrently transmits RGB888 video with HS/VS/DE control signals and up to four I2S digital audio streams (I2S_DA–DD, I2S_WC, I2S_CLK) over the same FPD-Link III serial link. Audio is time-aligned with video frames, enabling lip-synced playback in rear-seat systems.
What thermal design considerations apply to DS90UB927QSQX/NOPB?
DS90UB927QSQX/NOPB requires connection of its exposed thermal pad (DAP) to the PCB ground plane using ≥9 thermal vias. With θJB = 5.1°C/W, it achieves efficient heat dissipation in automotive ambient temperatures up to +105°C. Decoupling capacitors (4.7 µF each) must be placed near VDD33_A, VDD33_B, and VDDIO pins per TI layout guidelines.
DS90UB927QSQX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Serializer
- Data Rate:
- 2.975Gbps
- Input Type:
- FPD-Link, LVDS
- Output Type:
- FPD-Link III, LVDS
- Number of Inputs:
- 13
- Number of Outputs:
- 1
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-WQFN (6x6)
DS90UB927QSQX/NOPB FAQ
1.How can I place an order for DS90UB927QSQX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90UB927QSQX/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 DS90UB927QSQX/NOPB reliable?
The price and inventory of DS90UB927QSQX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90UB927QSQX/NOPB is usually 5 days.
3.What payment methods are accepted for DS90UB927QSQX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90UB927QSQX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90UB927QSQX/NOPB?
DS90UB927QSQX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90UB927QSQX/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 DS90UB927QSQX/NOPB?
For technical support, including DS90UB927QSQX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90UB927QSQX/NOPB requirements.
6.How does Aetrix verify that DS90UB927QSQX/NOPB is sourced from the original manufacturer or authorized distributors?
All DS90UB927QSQX/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 DS90UB927QSQX/NOPB meets industry standards.
7.What is the process for return or replacement of DS90UB927QSQX/NOPB?
All DS90UB927QSQX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS90UB927QSQX/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 DS90UB927QSQX/NOPB part is unused and in its original packaging.
Return procedure for DS90UB927QSQX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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