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Texas Instruments DS90UB949ATRGCRQ1
- Part No.:
- DS90UB949ATRGCRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
DS90UB949ATRGCRQ1.pdf
- Description:
- POWER MANAGEMENT
- Quantity:
- Payment:
- Shipping:
Inventory:1,834
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Product details
Overview
DS90UB949ATRGCRQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive HDMI-to-FPD-Link III bridge serializer supporting TMDS clock frequencies up to 210 MHz, 2-lane FPD-Link III output (3.675 Gbps aggregate), and HDMI v1.4b/DP++ input compatibility for 2K (2880×1080@60Hz) video with 24-bit color depth in infotainment head units.
For engineers reviewing the DS90UB949ATRGCRQ1 datasheet, DS90UB949ATRGCRQ1 pinout, DS90UB949ATRGCRQ1 application, or DS90UB949ATRGCRQ1 equivalent, key selection considerations include HDMI input jitter tolerance (0.3 UI), dual-lane FPD-Link III differential output compliance (900–1200 mVp-p), I²C master/slave + SPI pass-through control, and automotive-grade thermal performance (RθJA = 25.8°C/W).
Technical Context
The DS90UB949ATRGCRQ1 implements a parallel-to-serial conversion architecture that accepts HDMI TMDS inputs (IN_CLK±, IN_D0±–IN_D2±) and embeds video, audio, and control data-including I²C, SPI, and GPIO traffic-into two high-speed FPD-Link III differential streams (DOUT0±, DOUT1±). Its integrated PLL locks to spread-spectrum HDMI clocks to suppress EMI.
It supports dual operational modes: single-lane (up to 1920×720@60Hz with DS90Ux92x-Q1 deserializers) and dual-lane (up to 2880×1080@60Hz with DS90UB940-Q1/DS90UB948-Q1), with backward compatibility confirmed across TI's FPD-Link III ecosystem. Audio extraction supports up to 8-channel I²S via dedicated slave-mode pins (I2S_WC/I2S_DA/etc.).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TMDS Input Frequency | Up to 210 MHz - enables 2K (2880×1080@60Hz) video with 24-bit color depth per HDMI v1.4b. |
| FPD-Link III Output Rate | 3.675 Gbps aggregate (1.8375 Gbps per lane) - supports AC-coupled STP/STQ/coax cabling with <0.3 UI output jitter. |
| HDMI Jitter Tolerance | 0.3 UI - ensures robust lock under HDMI CTS v1.4b Test ID 8-7 conditions with CDR filter at 4 MHz. |
| I²C Interface Speed | 1 Mbps Fast-Mode Plus - allows high-speed configuration and register access over bidirectional control channel. |
| Supply Voltages | VDD18 = 1.71–1.89 V; VDDIO = 1.71–1.89 V; VDDA11/VDDHS11/VDDP11 = 1.045–1.155 V - multi-rail analog/digital partitioning for noise isolation. |
| Operating Temperature | –40°C to +105°C (Grade 2) - qualified per AEC-Q100 for automotive infotainment and cluster applications. |
| Thermal Resistance | RθJA = 25.8°C/W (64-pin VQFN) - enables stable operation without forced airflow in enclosed head unit enclosures. |
Pinout & Package
DS90UB949ATRGCRQ1 is housed in a thermally enhanced 64-pin VQFN package (9.00 mm × 9.00 mm), with exposed thermal pad requiring ≥9 vias to ground plane for optimal heat dissipation per TI SNLS650.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN_CLK±, IN_D0±–IN_D2± | HDMI TMDS Differential Inputs | Accept 25–210 MHz HDMI v1.4b signals with 90–110 Ω differential termination and 150–1200 mVp-p VIDIFF. |
| DOUT0±, DOUT1± | FPD-Link III Differential Outputs | Drive 100-Ω STP/STQ cables with 900–1200 mVp-p output swing; require 0.1-µF AC coupling to DS90UB94x-Q1 deserializers. |
| SCL/SDA, I2CSEL | I²C Master/Slave Control Interface | Support 1.8-V or 3.3-V I²C levels (strapped via I2CSEL); enable remote register programming and EDID management. |
| MOSI/MISO/SPLK/SS | SPI Pass-Through Interface | Shared with D_GPIO[0:3]; used only in dual-link mode to relay host SPI commands to downstream peripherals. |
| HPD, DDC_SDA/DDL_SCL, CEC | HDMI Auxiliary Interfaces | Hot-plug detect (open-drain, 1-kΩ pullup), DDC bus (47-kΩ pullup to RX_5V), and CEC (27-kΩ pullup) for full HDMI compliance. |
Key Features
| Feature | Design Value |
|---|---|
| HDMI v1.4b & DP++ Input Support | Enables direct connection to standard HDMI sources and DisplayPort++ graphics processors without level-shifting or protocol translation. |
| 2-Lane FPD-Link III Output | Reduces cable count vs. parallel RGB; supports cost-effective coax or STP cabling with EMI suppression via scrambling and LVDS signaling. |
| 8-Channel HDMI Audio Extraction | Extracts embedded audio from HDMI stream and outputs via configurable I²S interface (slave or auxiliary mode) for external DAC integration. |
| High-Speed Back Channel (2 Mbps) | Provides low-latency GPIO communication (D_GPIO[0:3]) over forward channel, enabling real-time display control and status feedback. |
| Backward Compatibility | Interoperates with legacy DS90UB92x-Q1 deserializers in single-lane mode, simplifying migration from prior FPD-Link III designs. |
Applications
| Automotive Head Unit | Center Information Display |
|---|---|
Use Scenario: Central multimedia hub receiving HDMI video/audio from navigation, media, and smartphone projection sources. IC Role / Device Role / Timing Role: HDMI-to-FPD-Link III serializer bridges high-bandwidth video to long-reach display modules using lightweight coax cabling. Use Value: Enables 2880×1080@60Hz resolution with <145×TBIT latency and integrated audio extraction-eliminating separate audio interfaces. |
Use Scenario: Driver-facing digital instrument cluster displaying vehicle telemetry, ADAS alerts, and media metadata. IC Role / Device Role / Timing Role: Serializer converts HDMI input into robust FPD-Link III differential streams immune to automotive EMI. Use Value: Achieves AEC-Q100 Grade 2 operation (–40°C to +105°C) with RθJA = 25.8°C/W, ensuring reliability in sealed dashboard environments. |
| Rear Seat Entertainment | Commercial Vehicle Instrument Cluster |
Use Scenario: Dual-display rear-seat system streaming HD video to independent LCD panels in SUVs or minivans. IC Role / Device Role / Timing Role: Dual-lane FPD-Link III output drives two DS90UB948-Q1 deserializers, each feeding one display. Use Value: Supports simultaneous 1080p60 video on both displays with shared I²C control and synchronized power-down via PDB pin. |
Use Scenario: Heavy-duty truck cab display integrating engine diagnostics, GPS mapping, and fleet telematics. IC Role / Device Role / Timing Role: Serializer interfaces with ruggedized HDMI-capable SoCs and transmits over shielded twisted quad (STQ) cable. Use Value: Meets stringent EMC requirements via spread-spectrum tracking and low-voltage differential signaling, reducing radiated emissions by >10 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI-to-FPD-Link III bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90UB949AQRCRQ1 | Same silicon die and functionality; differs only in tape-and-reel packaging (TR vs. RG) and reel size (2500 vs. 1000 pcs). | No functional or electrical difference; identical pinout, timing, and thermal behavior. | Select DS90UB949AQRCRQ1 for higher-volume automated assembly requiring larger reels. |
| DS90UB947ATRGCRQ1 | Single-lane FPD-Link III output (1.8375 Gbps), no DOUT1± pins; supports up to 1920×720@60Hz with DS90Ux92x-Q1 deserializers. | Limited to lower-resolution displays; lacks dual-lane bandwidth and associated GPIO/SPI pass-through capability. | Choose DS90UB947ATRGCRQ1 only when system resolution and feature set permit lane reduction and cost optimization. |
Compared with DS90UB949ATRGCRQ1, DS90UB949AQRCRQ1 offers identical performance in alternate packaging, while DS90UB947ATRGCRQ1 trades dual-lane bandwidth and audio extraction capability for reduced pin count and BOM cost in entry-level displays.
Availability
DS90UB949ATRGCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment head units, center information displays, rear seat entertainment systems, and commercial vehicle instrument clusters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DS90UB949ATRGCRQ1 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 solutions for automotive, industrial, and consumer markets.
The DS90UB949ATRGCRQ1 belongs to TI's FPD-Link III automotive serializer portfolio, designed specifically to replace bulky parallel video interconnects with high-reliability, EMI-resilient serial links for next-generation digital cockpits.
FAQ
What is the maximum supported video resolution and frame rate for DS90UB949ATRGCRQ1?
The DS90UB949ATRGCRQ1 supports up to 2880×1080@60Hz with 24-bit color depth using dual-lane FPD-Link III output. At 210 MHz TMDS clock, it also enables QXGA (2048×1536), WUXGA (1920×1200), and 1080p60. In single-lane mode with legacy deserializers, it supports up to 1920×720@60Hz. All resolutions comply with HDMI v1.4b timing and jitter specifications.
Does DS90UB949ATRGCRQ1 support audio extraction from HDMI, and how is it implemented?
Yes, DS90UB949ATRGCRQ1 supports HDMI audio extraction for up to 8 channels. It recovers embedded audio packets and outputs them via a configurable I²S interface-either in slave mode (using I2S_WC/I2S_DA/etc. pins) or auxiliary mode. The device includes dedicated I²S clock/data pins with register-controlled format selection (I²S, left-justified, right-justified), enabling direct connection to external audio DACs without additional logic.
What are the power supply requirements for DS90UB949ATRGCRQ1, and how are they distributed?
DS90UB949ATRGCRQ1 requires seven distinct supply rails: VDD18 (1.71–1.89 V, analog core), VDDIO (1.71–1.89 V, I/O), VDDA11/VDDHS11/VDDP11/VDDS11 (1.045–1.155 V, analog/digital/PLL/serializer domains), and VTERM (1.71–1.89 V for AC-coupled or 3.135–3.465 V for DC-coupled HDMI termination). Each rail must be independently decoupled per TI SNLS650 layout guidelines to maintain signal integrity and meet AEC-Q100 EMI targets.
How does DS90UB949ATRGCRQ1 handle backward compatibility with older FPD-Link III deserializers?
DS90UB949ATRGCRQ1 operates in backward-compatible mode with DS90UB926Q-Q1, DS90UB928Q-Q1, and DS90UB924-Q1 deserializers using a single FPD-Link III lane. In this mode, it supports up to 1920×720@60Hz with 24-bit color and retains full I²C bridging and GPIO functionality. Configuration is automatic upon power-up detection of legacy deserializer handshake patterns-no firmware or register changes required.
What thermal management guidance applies to DS90UB949ATRGCRQ1 in automotive enclosures?
DS90UB949ATRGCRQ1 has RθJA = 25.8°C/W in its 64-pin VQFN package. To sustain operation at +105°C ambient, the PCB must use the exposed thermal pad with ≥9 thermal vias to an internal or bottom-layer ground plane. TI recommends ≥2 oz copper on inner layers and avoids thermal isolation around the pad. Power dissipation in normal operation is ~650 mW (IDD11 ≈ 400 mA @ 1.1 V + IDD18 ≈ 35 mA @ 1.8 V), requiring no heatsink in properly laid-out automotive head unit PCBs.
DS90UB949ATRGCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Serializer
- Data Rate:
- 3.675Gbps
- Input Type:
- HDMI
- Output Type:
- FPD-Link III, LVDS
- Number of Inputs:
- 4
- Number of Outputs:
- 2
- Voltage - Supply:
- 1.045V ~ 1.155V, 1.71V ~ 1.89V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-VQFN (9x9)
DS90UB949ATRGCRQ1 FAQ
1.How can I place an order for DS90UB949ATRGCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90UB949ATRGCRQ1 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 DS90UB949ATRGCRQ1 reliable?
The price and inventory of DS90UB949ATRGCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90UB949ATRGCRQ1 is usually 5 days.
3.What payment methods are accepted for DS90UB949ATRGCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90UB949ATRGCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90UB949ATRGCRQ1?
DS90UB949ATRGCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90UB949ATRGCRQ1 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 DS90UB949ATRGCRQ1?
For technical support, including DS90UB949ATRGCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90UB949ATRGCRQ1 requirements.
6.How does Aetrix verify that DS90UB949ATRGCRQ1 is sourced from the original manufacturer or authorized distributors?
All DS90UB949ATRGCRQ1 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 DS90UB949ATRGCRQ1 meets industry standards.
7.What is the process for return or replacement of DS90UB949ATRGCRQ1?
All DS90UB949ATRGCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DS90UB949ATRGCRQ1, 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 DS90UB949ATRGCRQ1 part is unused and in its original packaging.
Return procedure for DS90UB949ATRGCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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