Texas Instruments DS90UB633ARTVTQ1

Overview

DS90UB633ARTVTQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive FPD-Link III serializer for 1-MP/60-fps camera interfaces, supporting 10/12-bit pixel depth at 56.25–100 MHz PCLK, embedded clock DC-balanced encoding, and robust Power-Over-Coaxial (PoC) operation up to 15 m over coax or STP. It serves as the high-speed forward channel transmitter in camera-to-ECU video links.

For engineers reviewing the DS90UB633ARTVTQ1 datasheet, DS90UB633ARTVTQ1 pinout, DS90UB633ARTVTQ1 application, or DS90UB633ARTVTQ1 equivalent, key selection criteria include its 12-bit 100-MHz pixel clock support, I²C-compatible bidirectional control channel at 400 kHz, 4 GPIOs, single 1.8-V supply, and WQFN-32 package with AC-coupled CML outputs.

Technical Context

The DS90UB633ARTVTQ1 implements a parallel-to-serial conversion architecture with embedded clock technology, enabling full-duplex bidirectional control over a single differential pair while transmitting up to 12-bit pixel data plus HSYNC/VSYNC. Its CML output driver supports 80–120 Ω differential termination and delivers 640–824 mV differential output voltage.

It integrates a PLL for clock recovery and serialization timing, with programmable TRFB edge selection, deterministic jitter under 0.17 UI, and lock time under 2 ms after power-down exit. The device operates across –40°C to +105°C ambient and complies with ISO 10605 (±15 kV air) and IEC 61000-4-2 (±7 kV contact) ESD standards.

Key Specifications

Pinout & Package

DS90UB633ARTVTQ1 is housed in a 5.00 mm × 5.00 mm WQFN-32 package with exposed thermal pad (DAP) requiring ≥9 vias to ground. Pinout follows TI's standard RTV footprint with LVCMOS parallel inputs, CML serial outputs, and dual-purpose GPIO/control pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPD-Link III serializer applications.

Compared with DS90UB634ARTVTQ1, DS90UB633ARTVTQ1 lacks spread-spectrum clocking but shares identical timing, GPIO, and PoC specifications - making it optimal for cost-sensitive SVS/RVC modules where EMI margins are sufficient. DS90UB662AQRTVRQ1 serves a fundamentally different role as the receiver, not a substitute.

Availability

DS90UB633ARTVTQ1 is available at Aetrix Electronics and suitable for automotive surround-view systems, front/rear camera modules, and driver-monitoring systems requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.

Supply support for DS90UB633ARTVTQ1 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-speed serial interface solutions.

The DS90UB633ARTVTQ1 belongs to TI's FPD-Link III automotive serializer family, designed specifically to replace parallel video buses in ADAS camera systems with robust, low-pin-count, long-reach serial links.

FAQ

What is the maximum supported pixel clock frequency for DS90UB633ARTVTQ1 in 12-bit mode?

The DS90UB633ARTVTQ1 supports a maximum pixel clock frequency of 100 MHz in 12-bit mode, enabling transmission of 1-MP resolution video at 60 fps. At this rate, the device delivers deterministic jitter under 0.4 UI and maintains full compliance with AEC-Q100 Grade 2 temperature requirements from –40°C to +105°C ambient.

Does DS90UB633ARTVTQ1 require external termination resistors on its CML outputs?

Yes, DS90UB633ARTVTQ1 requires external 100-Ω differential termination across DOUT+ and DOUT−, as specified in the datasheet. The internal CML driver has 80–120 Ω differential output impedance, and proper termination ensures signal integrity over coax or STP cables up to 15 m. AC coupling capacitors (0.1 µF) are also mandatory.

Can DS90UB633ARTVTQ1 operate with a 3.3-V I/O supply while using a 1.8-V core supply?

Yes, DS90UB633ARTVTQ1 supports independent VDDIO at 1.8 V, 2.8 V, or 3.3 V while maintaining a 1.8-V core supply (VDDPLL/VDDT/VDDCML/VDDD). This allows direct interfacing with 3.3-V image sensors or microcontrollers without level shifters, with verified VIH/VIL thresholds and 4-mA drive strength at 3.3 V.

How does the bidirectional control channel in DS90UB633ARTVTQ1 differ from standard I²C?

The DS90UB633ARTVTQ1 bidirectional control channel is I²C-compatible but optimized for point-to-point FPD-Link III links: it uses open-drain SCL/SDA with lower IOL (0.9–1.6 mA) than standard I²C, supports 400-kHz operation, and embeds control data within the same differential pair used for video - eliminating separate control wiring while maintaining sub-microsecond latency.

Is DS90UB633ARTVTQ1 pin-compatible with other devices in the DS90UB63x-Q1 family?

Yes, DS90UB633ARTVTQ1 shares the same WQFN-32 (RTV) package and pinout with DS90UB634ARTVTQ1 and DS90UB635ARTVTQ1, enabling drop-in replacement for design flexibility. All share identical DIN, PCLK, HSYNC, VSYNC, DOUT±, SCL/SDA, and GPO pin assignments - differences are limited to internal features like spread-spectrum support or GPIO count.