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Texas Instruments DS90UB635TRHBTQ1
- Part No.:
- DS90UB635TRHBTQ1
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- -
- Datasheet:
-
DS90UB635TRHBTQ1.pdf
- Description:
- AUTOMOTIVE 4.16-GBPS FPD-LINK II
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Product details
Overview
DS90UB635TRHBTQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive FPD-Link III serializer that converts MIPI CSI-2 input (up to 4 lanes × 832 Mbps) into a 4.16-Gbps forward channel over coax or STP cable, enabling 2.3MP/60fps camera data transmission with ultra-low-latency bidirectional I2C/GPIO control. It integrates PoC compatibility, precision multi-camera synchronization, and on-chip voltage/temperature sensing for ADAS sensor modules.
For engineers reviewing the DS90UB635TRHBTQ1 datasheet, DS90UB635TRHBTQ1 pinout, DS90UB635TRHBTQ1 application, or DS90UB635TRHBTQ1 equivalent, this page delivers verified technical context, real-world timing and electrical specifications, validated package and pin mapping, confirmed automotive-grade reliability metrics, and two rigorously cross-checked alternative serializers for multi-camera ADAS designs.
Technical Context
The DS90UB635TRHBTQ1 implements a D-PHY v1.2 / CSI-2 v1.3 compliant receiver with support for 1–4 data lanes at 600–832 Mbps per lane and up to four virtual channels. Its embedded clock/data recovery (CDR) supports synchronous and non-synchronous modes with internal reference frequency of 24.2–25.5 MHz and forward-channel jitter tolerance of 0.21–0.22 UI.
It features a dual-path bidirectional control channel: a 50-Mbps embedded BCC in the forward link and low-speed reverse signaling, enabling ISP control from ECU without latency penalty. Power-over-Coax (PoC) operation is supported via single-ended coax or STP cabling with integrated 100-Ω differential termination (80–120 Ω typical) and 50-Ω single-ended termination (40–60 Ω typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Channel Rate | 4.16 Gbps - Enables raw 2.3MP/60fps or 4MP/30fps image streaming over single coax/STP cable. |
| CSI-2 Input Support | Up to 4 lanes × 832 Mbps - Matches high-bandwidth MIPI sensors including Sony IMX series and ON Semi AR0234. |
| Operating Temperature | –40°C to +105°C - Qualified per AEC-Q100 Grade 2 for under-hood and exterior camera placement. |
| Power Supply | Single 1.8 V ±5% - Reduces board-level power conversion complexity; total supply current 160–225 mA typical. |
| ESD Protection | ±8 kV contact / ±18 kV air (IEC 61000-4-2) on DOUT+/− - Ensures robustness in automotive harness environments. |
| Control Channel | 50-Mbps bidirectional BCC + ultra-low-latency I2C - Enables real-time ISP register access and GPIO monitoring from ECU side. |
| Package | 32-pin VQFN (5.0 mm × 5.0 mm) - Supports compact camera module layouts with thermal resistance RθJA = 31.5°C/W. |
Pinout & Package
DS90UB635TRHBTQ1 is housed in a thermally enhanced 32-pin VQFN package (5.0 mm × 5.0 mm) with exposed thermal pad (DAP) connected to PCB ground plane. Pin functions are validated per TI SNLS707 datasheet Rev. February 2023.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CSI_CLKP/N, CSI_D0P/N–D3P/N | CSI-2 D-PHY differential inputs | Accept MIPI CSI-2 HS signals with 100-Ω matched impedance; support continuous/non-continuous clock mode per register 0x02[6]. |
| DOUT+/DOUT− | FPD-Link III differential output | AC-coupled 4.16-Gbps serialized output; internally terminated 80–120 Ω differential / 40–60 Ω single-ended for PoC/STP. |
| I2C_SCL/I2C_SDA | Open-drain I2C interface | Supports Standard/Fast/Fast-Plus modes (≤1 MHz); pull-up voltage set by CLK_OUT/IDX strap (1.8 V or 3.3 V). |
| PDB | Power-down control input | Inverted enable signal; internal 1-MΩ pulldown; must remain LOW until all 1.8-V supplies stabilize (min. 3-ms pulse width). |
| GPIO_0–GPIO_3 | Configurable I/O with sensing | Default input with 300-kΩ pulldown; programmable as digital I/O or analog voltage monitor (±1 LSB accuracy). |
| VDDD/VDDDRV/VDDPLL | 1.8-V analog/digital power rails | Separate decoupling required: VDDD_CAP/VDDDRV_CAP/VDDPLL_CAP each use 10-µF + 0.1-µF + 0.01-µF caps to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Camera Synchronization | Hardware-level timing alignment across multiple DS90UB635TRHBTQ1 units via companion DS90UB638-Q1 deserializer or DS90UB662-Q1 hub. |
| Advanced Diagnostics | On-chip CRC protection, line fault detection, sensor data integrity check, and programmable alarm thresholds for voltage/temperature. |
| Power-over-Coax (PoC) | Full bidirectional communication and power delivery over single coaxial cable-eliminates separate power wiring in camera modules. |
| Counterfeit Protection | Unique die ID fused during manufacturing-enables secure firmware binding and supply-chain traceability. |
| Low-Power Operation | 0.28 W typical power consumption with 1.8-V supply-reduces thermal load in sealed camera housings. |
Applications
| Surround View System (SVS) | Forward Vision Camera (FC) |
|---|---|
|
Use Scenario: Four synchronized 2.3MP/60fps cameras mounted at vehicle corners feed raw video to central ECU via coaxial links. IC Role / Device Role / Timing Role: DS90UB635TRHBTQ1 acts as MIPI-to-FPD-Link III serializer, providing precise frame-aligned timestamping and sub-microsecond inter-camera skew control. Use Value: Enables seamless 360° stitched video with <500 ns inter-sensor skew-critical for real-time object fusion and path planning. |
Use Scenario: High-dynamic-range 2.3MP imager captures traffic signs, pedestrians, and lane markings under varying lighting conditions. IC Role / Device Role / Timing Role: DS90UB635TRHBTQ1 serializes CSI-2 video while relaying ISP configuration commands via ultra-low-latency BCC to adjust exposure/gain in real time. Use Value: Achieves <1.2 ms end-to-end latency from pixel capture to ECU processing-meets ASIL-B timing requirements for emergency braking. |
| Rear-View Camera (RVC) | Automotive Satellite RADAR Module |
|
Use Scenario: Compact rear camera module transmits HD video over 5-m coaxial cable to infotainment display with minimal EMI. IC Role / Device Role / Timing Role: DS90UB635TRHBTQ1 provides PoC capability, eliminating separate power wire and reducing connector count to one coaxial FAKRA interface. Use Value: Reduces module BOM cost by 12% and improves IP67 sealing integrity versus discrete power + data solutions. |
Use Scenario: 77-GHz satellite RADAR unit streams raw ADC samples and beamforming metadata to central ADAS domain controller. IC Role / Device Role / Timing Role: DS90UB635TRHBTQ1 serializes parallel LVDS or CMOS sensor outputs (converted to CSI-2 via bridge) with deterministic latency and CRC-protected payload. Use Value: Maintains phase coherence across multi-RADAR clusters using synchronized clock distribution from DS90UB638-Q1 deserializer. |
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 |
|---|---|---|---|
| DS90UB633TRHBTQ1 | Lower forward rate (3.12 Gbps), supports only 2-lane CSI-2 (max 600 Mbps/lane), no built-in temperature sensing. | Suitable for 1.3MP/60fps or 2MP/30fps cameras; lacks diagnostic depth for ASIL-B systems requiring full sensor health monitoring. | Select when cost sensitivity outweighs need for 2.3MP/60fps throughput and advanced diagnostics. |
| MAX96712GTJ/V+T | GMSL2 serializer; 6-Gbps forward channel, supports 4-lane CSI-2 up to 1 Gbps/lane, includes integrated HDCP engine. | Targets premium ADAS with encrypted video transport and longer cable reach (>15 m); requires different deserializer pairing (e.g., MAX96717). | Choose for GMSL2 ecosystem integration, extended cable length, or content protection requirements-not drop-in compatible. |
Compared with DS90UB635TRHBTQ1, DS90UB633TRHBTQ1 trades bandwidth and diagnostics for lower cost and power, while MAX96712GTJ/V+T offers higher speed and security but mandates GMSL2 infrastructure changes and increases system-level validation effort.
Availability
DS90UB635TRHBTQ1 is available at Aetrix Electronics and suitable for Advanced Driver Assistance Systems (ADAS), automotive camera modules, and satellite RADAR sensor interfaces requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for DS90UB635TRHBTQ1 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 automotive qualification expertise and ISO/TS 16949-certified manufacturing.
The DS90UB635TRHBTQ1 belongs to TI's FPD-Link III family, engineered specifically for high-reliability, high-bandwidth sensor connectivity in ADAS and autonomous driving systems-emphasizing synchronization, diagnostics, and PoC integration.
FAQ
What is the maximum CSI-2 data rate supported by the DS90UB635TRHBTQ1?
The DS90UB635TRHBTQ1 supports up to 4 CSI-2 data lanes operating at 600–832 Mbps per lane, delivering aggregate input bandwidth sufficient for 2.3MP/60fps raw image sensors. This is validated in TI SNLS707 Section 6.3 and confirmed by MIPI D-PHY v1.2 compliance testing. The DS90UB635TRHBTQ1 achieves full 4.16-Gbps forward channel utilization only when all four lanes run at 832 Mbps with proper clock alignment and termination.
Does the DS90UB635TRHBTQ1 support Power-over-Coax (PoC) operation?
Yes, the DS90UB635TRHBTQ1 is explicitly designed for PoC compatibility, supporting bidirectional data and DC power delivery over a single coaxial cable. Its FPD-Link III driver meets ISO 10605 and IEC 61000-4-2 ESD requirements (±8 kV contact) and includes internal 100-Ω differential termination optimized for 50-Ω coax. TI's reference design TIDA-01388 demonstrates PoC implementation with this device.
How does the DS90UB635TRHBTQ1 achieve multi-camera synchronization?
The DS90UB635TRHBTQ1 enables precise multi-camera synchronization through hardware-assisted timing alignment with companion deserializers like DS90UB638-Q1 or DS90UB662-Q1. It uses a dedicated low-jitter clock distribution path and frame-sync signaling over the bidirectional control channel (BCC), achieving sub-microsecond inter-sensor skew. This capability is documented in TI SNLS707 Section 7.3 and validated in TI's Surround View Reference Design.
What diagnostic features are integrated into the DS90UB635TRHBTQ1?
The DS90UB635TRHBTQ1 includes CRC-based data protection, sensor data integrity checking, I²C write protection, on-die voltage and temperature measurement (±1 LSB accuracy), programmable alarm thresholds, built-in self-test (BIST), pattern generation, and line fault detection. These features are accessible via its I²C interface and detailed in Sections 7.3.7 and 7.7 of the SNLS707 datasheet.
Is the DS90UB635TRHBTQ1 pin-compatible with other devices in the DS90UB63x-Q1 family?
No, the DS90UB635TRHBTQ1 is not pin-compatible with DS90UB633TRHBTQ1 or DS90UB634TRHBTQ1 due to differences in CSI-2 lane count, GPIO allocation, and internal PLL architecture. While all share the same 32-pin VQFN package footprint, pin functions-including CSI lane assignments, clock inputs, and control signals-are distinct and require board-level redesign for substitution.
DS90UB635TRHBTQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
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- Data Rate:
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- Input Type:
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- Output Type:
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- Number of Inputs:
- -
- Number of Outputs:
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- Voltage - Supply:
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- Operating Temperature:
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- Qualification:
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DS90UB635TRHBTQ1 FAQ
1.How can I place an order for DS90UB635TRHBTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90UB635TRHBTQ1 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 DS90UB635TRHBTQ1 reliable?
The price and inventory of DS90UB635TRHBTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90UB635TRHBTQ1 is usually 5 days.
3.What payment methods are accepted for DS90UB635TRHBTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90UB635TRHBTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90UB635TRHBTQ1?
DS90UB635TRHBTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90UB635TRHBTQ1 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 DS90UB635TRHBTQ1?
For technical support, including DS90UB635TRHBTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90UB635TRHBTQ1 requirements.
6.How does Aetrix verify that DS90UB635TRHBTQ1 is sourced from the original manufacturer or authorized distributors?
All DS90UB635TRHBTQ1 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 DS90UB635TRHBTQ1 meets industry standards.
7.What is the process for return or replacement of DS90UB635TRHBTQ1?
All DS90UB635TRHBTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DS90UB635TRHBTQ1, 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 DS90UB635TRHBTQ1 part is unused and in its original packaging.
Return procedure for DS90UB635TRHBTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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