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Texas Instruments DS90UA101TRTVRQ1
- Part No.:
- DS90UA101TRTVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
DS90UA101TRTVRQ1.pdf
- Description:
- IC SER/DESER 10-50MHZ 8B 32-WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,245
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Product details
Overview
DS90UA101TRTVRQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive-qualified digital audio serializer that converts up to eight channels of I2S or TDM audio into a high-speed LVDS serial stream over coaxial or shielded twisted-pair cable. It operates from a single 1.8V core supply with 1.8V/3.3V I/O support, delivers <15 µs end-to-end latency, and embeds clock/data for jitter-tolerant transmission up to 15 m in infotainment head units.
For engineers reviewing the DS90UA101TRTVRQ1 datasheet, DS90UA101TRTVRQ1 pinout, DS90UA101TRTVRQ1 application, or DS90UA101TRTVRQ1 equivalent, this page provides verified technical context, validated pin functions, real-world automotive audio use cases, and two confirmed alternative serializers with documented functional trade-offs.
Technical Context
The DS90UA101TRTVRQ1 implements a CML-based forward channel serializer with embedded clock recovery and a bidirectional I²C-compatible control channel over the same physical link. Its PLL locks to input SCK (10–50 MHz), supports configurable data strobing (rising/falling edge via TRFB bit), and integrates CRC error checking on the back channel.
It features dual-voltage I/O (1.8V/3.3V), programmable drive strength, analog power-down control, and register-accessible configuration including remote device ID remapping, parity generation, and GPO/GPI direction and enable control - all accessible locally or via the bidirectional control bus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| SCK Input Frequency | 10–50 MHz: defines maximum supported audio sample rate and TDM slot count; enables 192 kHz stereo or 8-channel 48 kHz systems. |
| Audio Input Support | Up to 8 stereo I²S or multi-channel TDM inputs: allows flexible connection to ADCs, DSPs, or audio controllers without external multiplexing. |
| Latency | <15 µs: ensures tight synchronization for active noise cancellation and real-time audio processing in vehicle cabins. |
| Supply Voltage | 1.8 V core (±5%), 1.8 V or 3.3 V I/O (±10%): simplifies power design in mixed-voltage automotive ECUs. |
| Cable Reach | Up to 15 m over AC-coupled coaxial or STP: supports distributed audio architectures between head unit and amplifier or seat-mounted speakers. |
| ESD Rating | ≥±25 kV air, ≥±7 kV contact (IEC 61000-4-2) on DOUT+/DOUT−: meets stringent automotive EMC requirements for serial link robustness. |
| Operating Temperature | −40°C to +105°C: qualified for under-dash and near-engine bay placement per AEC-Q100 Grade 2. |
Pinout & Package
The DS90UA101TRTVRQ1 is housed in a 32-pin WQFN package (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad (DAP) requiring ≥9 vias to ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCK, LRCK, BCK | LVCMOS audio clock inputs | Accept system clock, word clock, and bit clock; internal pull-downs simplify interface to audio controllers without external resistors. |
| DIN[7:0] | Parallel digital audio inputs | Support I²S, TDM, left-justified, or right-justified formats; each pin maps to one audio data lane with configurable alignment. |
| GPI[3:0], GPO[3:0] | General-purpose I/O | Four dedicated inputs and outputs enable hardware handshaking, interrupt signaling, or status reporting to remote devices over the link. |
| SCL, SDA, IDx, SET | I²C control interface | Enable local configuration and bidirectional remote register access; IDx sets 7-bit I²C address; SET configures device initialization state. |
| DOUT+, DOUT− | CML serial output pair | AC-coupled differential LVDS output driving coaxial or STP; requires 0.1 µF series capacitor and 100 Ω termination at receiver. |
| PDB | Power-down control | Active-high enable: drives device into ultra-low-power state (<100 µA) with PLL shutdown and transmitter tri-state. |
| VDDPLL, VDDT, VDDCML, VDDIO, VDDD | Separate supply domains | Isolate PLL, analog core, CML driver, I/O, and digital logic supplies to minimize noise coupling and meet automotive rail stability specs. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded clock serialization | Eliminates separate clock routing and skew management across long cables; enables deterministic timing for multi-zone audio distribution. |
| Bidirectional I²C control channel | Allows full register read/write access to remote DS90UA102-Q1 deserializer and downstream peripherals without additional wires or buses. |
| Configurable I/O voltage (1.8V/3.3V) | Permits direct interfacing with legacy 3.3V audio controllers or modern 1.8V SoCs without level shifters. |
| DC-balanced & scrambled data | Prevents baseline wander and EMI peaks on long cables; maintains signal integrity over 15 m without DC blocking transformers. |
| On-chip CRC and error monitoring | Enables real-time link health diagnostics via registers 0x0A–0x0B and status bits (RX Lock, Link Detect, DES Error). |
Applications
| Automotive Infotainment Head Unit | Active Noise Cancellation (ANC) System |
|---|---|
Use Scenario: Central audio processor routes multi-source digital audio (Bluetooth, USB, tuner) to distributed amplifiers and DSPs across vehicle zones. IC Role / Device Role / Timing Role: Serializer aggregates eight TDM audio streams and forwards them over single coaxial cable to remote deserializers near speakers or subwoofers. Use Value: Reduces harness weight and EMI by replacing 20+ parallel traces with one shielded pair while maintaining <15 µs latency for lip-sync and voice assistant responsiveness. |
Use Scenario: Microphone array signals are digitized near cabin locations and transmitted to central ANC controller for real-time adaptive filtering. IC Role / Device Role / Timing Role: DS90UA101TRTVRQ1 captures four-channel I²S microphone data and serializes it with precise timing alignment for phase-coherent noise modeling. Use Value: Enables synchronized sampling across spatially separated microphones using embedded clock, critical for narrowband and broadband noise cancellation accuracy. |
| Distributed Multi-Channel Audio System | Vehicle Seat Audio Zone Controller |
Use Scenario: High-end vehicles deploy independent audio zones (driver, front passenger, rear left/right) with localized DACs and amplifiers. IC Role / Device Role / Timing Role: Serializer transmits eight-channel TDM audio from head unit to zone-specific deserializers, each feeding local 2-channel DACs. Use Value: Supports simultaneous 48 kHz/24-bit playback across four zones with guaranteed low-jitter clock recovery and no inter-zone skew. |
Use Scenario: Rear-seat entertainment system includes headphone jacks and wireless audio transmitters powered by seat-integrated electronics. IC Role / Device Role / Timing Role: DS90UA101TRTVRQ1 interfaces with seat-local ADCs (e.g., for ambient noise sensing) and forwards data to main head unit via existing video/audio cable infrastructure. Use Value: Leverages existing FPD-Link III cabling for bidirectional audio/control, avoiding new wire runs and enabling seamless firmware updates over the control channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital audio serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90UB925QSQX/NOPB | Higher bandwidth (1.5 Gbps vs. ~1.2 Gbps), supports 10-bit video + audio co-transport; requires external clock source. | Targeted at display + audio combo links (e.g., digital cluster with audio alerts); lacks native TDM/I²S framing logic. | Choose when integrating audio with video over same cable; avoid if pure audio serialization with flexible format support is required. |
| MAX9278AEE/V+T | Pin-compatible serializer with identical 32-pin QFN; supports same I²S/TDM inputs but uses GMSL protocol stack and different register map. | Designed for Maxim's GMSL ecosystem; requires MAX9279 deserializer and proprietary configuration tools. | Choose only within existing GMSL designs; not interoperable with TI's DS90UA102-Q1 deserializer or control architecture. |
Compared with DS90UA101TRTVRQ1, DS90UB925QSQX offers higher aggregate bandwidth at the cost of audio-specific flexibility, while MAX9278AEE/V+T provides mechanical compatibility but mandates ecosystem lock-in - neither is pin- or firmware-compatible.
Availability
DS90UA101TRTVRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, active noise cancellation subsystems, and distributed multi-channel audio platforms requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for DS90UA101TRTVRQ1 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 experience in high-reliability signal chain solutions.
The DS90UA101TRTVRQ1 belongs to TI's FPD-Link III automotive serializer family, engineered specifically for low-latency, EMI-robust digital audio transport in safety-critical vehicle environments.
FAQ
What is the primary function of the DS90UA101TRTVRQ1 in an automotive audio system?
The DS90UA101TRTVRQ1 serves as a digital audio serializer that converts parallel I²S or TDM audio data (up to eight channels) into a high-speed, clock-embedded LVDS serial stream for transmission over coaxial or shielded twisted-pair cable. In automotive systems, it enables centralized audio processing in the head unit while distributing clean, low-latency audio to remote amplifiers, DSPs, or ANC modules - reducing wiring complexity and improving signal integrity. DS90UA101TRTVRQ1 is explicitly designed for this role in AEC-Q100 Grade 2 environments.
Does the DS90UA101TRTVRQ1 support both I²S and TDM audio formats?
Yes, the DS90UA101TRTVRQ1 supports both I²S and TDM formats on its DIN[7:0] inputs. Each data input accepts configurable frame alignment (I²S, left-justified, right-justified) and can be grouped into stereo or multi-channel TDM structures. The device does not perform format conversion but faithfully serializes the applied parallel data stream with embedded clocking - making it suitable for diverse audio sources like ADCs, DSPs, or SoCs outputting either standard. DS90UA101TRTVRQ1's register 0x03[0] (TRFB) further allows edge selection for data capture synchronization.
What is the maximum cable length supported by the DS90UA101TRTVRQ1?
The DS90UA101TRTVRQ1 supports up to 15 meters of AC-coupled coaxial or shielded twisted-pair (STP) cable, as specified in the official datasheet (SNLS441A). This reach is achieved using CML differential signaling with DC-balanced, scrambled data and robust ESD protection (≥±25 kV air discharge on DOUT+/DOUT−). Performance depends on cable quality, termination, and SCK frequency - coaxial operation is rated for 25–50 MHz, while STP supports 10–50 MHz. DS90UA101TRTVRQ1 maintains <15 µs latency and reliable link detection across this full range.
How does the bidirectional control channel work on the DS90UA101TRTVRQ1?
The DS90UA101TRTVRQ1 implements a bidirectional I²C-compatible control channel over the same physical link used for forward audio data. Using SCL and SDA pins, it allows local configuration and also relays I²C transactions to the remote DS90UA102-Q1 deserializer (or other downstream slaves) via register-controlled pass-through (0x03[3:2]). This eliminates separate control wiring, enabling remote register access, firmware updates, and real-time status monitoring (e.g., CRC errors, RX lock, link detect) without additional buses. DS90UA101TRTVRQ1 handles address remapping and error handling transparently per its control register settings.
Is the DS90UA101TRTVRQ1 compatible with 3.3V I/O interfaces?
Yes, the DS90UA101TRTVRQ1 supports 3.3V LVCMOS I/O via its VDDIO supply pin, which accepts 3.0–3.6 V (±10%). All parallel interface pins - including SCK, LRCK, BCK, DIN[7:0], GPI[3:0], GPO[3:0], SCL, and SDA - operate at either 1.8V or 3.3V logic levels depending on VDDIO setting. Input thresholds scale accordingly (VIH = 0.7×VDDIO), and output drive strength is programmable via register 0x01[6]. This dual-voltage capability allows direct interfacing with legacy 3.3V audio controllers without level shifters. DS90UA101TRTVRQ1's datasheet confirms full DC specifications for both voltage modes.
DS90UA101TRTVRQ1 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:
- 600Mbps
- Input Type:
- LVCMOS
- Output Type:
- FPD-Link III, LVDS
- Number of Inputs:
- 4
- Number of Outputs:
- 1
- Voltage - Supply:
- 1.71V ~ 1.89V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-WQFN (5x5)
DS90UA101TRTVRQ1 FAQ
1.How can I place an order for DS90UA101TRTVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90UA101TRTVRQ1 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 DS90UA101TRTVRQ1 reliable?
The price and inventory of DS90UA101TRTVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90UA101TRTVRQ1 is usually 5 days.
3.What payment methods are accepted for DS90UA101TRTVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90UA101TRTVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90UA101TRTVRQ1?
DS90UA101TRTVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90UA101TRTVRQ1 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 DS90UA101TRTVRQ1?
For technical support, including DS90UA101TRTVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90UA101TRTVRQ1 requirements.
6.How does Aetrix verify that DS90UA101TRTVRQ1 is sourced from the original manufacturer or authorized distributors?
All DS90UA101TRTVRQ1 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 DS90UA101TRTVRQ1 meets industry standards.
7.What is the process for return or replacement of DS90UA101TRTVRQ1?
All DS90UA101TRTVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DS90UA101TRTVRQ1, 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 DS90UA101TRTVRQ1 part is unused and in its original packaging.
Return procedure for DS90UA101TRTVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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