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Texas Instruments DS90CR486VSX/NOPB
- Part No.:
- DS90CR486VSX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 100-TQFP
- Datasheet:
-
DS90CR486VSX/NOPB.pdf
- Description:
- IC DESERIALIZER 48BIT 100-TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DS90CR486VSX/NOPB from Texas Instruments is a 48-bit Channel Link deserializer IC that converts eight LVDS data streams and one LVDS clock into 48-bit LVCMOS/LVTTL parallel outputs. It operates at up to 133 MHz input clock (6.384 Gbps throughput), supports cable deskew and DC balancing, and targets high-speed point-to-point interconnects in industrial imaging and embedded display systems.
For engineers reviewing the DS90CR486VSX/NOPB datasheet, DS90CR486VSX/NOPB pinout, DS90CR486VSX/NOPB application, or DS90CR486VSX/NOPB equivalent, key selection criteria include LVDS-to-LVCMOS conversion capability, 100-pin TQFP package compatibility, deskew range (±150 ps at 133 MHz), DC balance enable/disable control, and backward compatibility with DS90CR481/483/485 serializers.
Technical Context
The DS90CR486VSX/NOPB implements a PLL-based receiver architecture synchronized to an incoming LVDS clock (66–133 MHz), reconstructing 48-bit parallel data with programmable deskew per differential pair and optional cycle-to-cycle DC balancing. Its internal sampling strobes are dynamically adjusted during initialization to compensate for fixed inter-pair skew.
It features dedicated LVDS input receivers (8 data pairs + 1 clock pair), LVCMOS/LVTTL output drivers (48 data + 1 clock), and five configurable control inputs (PD, DESKEW, BAL, PLLSEL, CON1) that define power state, deskew activation, DC balance mode, PLL range, and configuration lock - all operating from a single +3.3 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 6.384 Gbps - Enables 798 MB/s parallel bus replacement over compact LVDS cable (e.g., 19-conductor vs. 98-conductor) |
| Clock Input Range | 66–133 MHz - Supports scalable timing across multiple serializer generations including DS90CR485 |
| Deskew Range | ±150 ps at 133 MHz - Compensates fixed pair-to-pair skew in long cables or backplanes without external delay lines |
| DC Balance Mode | Enabled via BAL = High - Reduces ISI by transmitting inverted/uninverted words to maintain near-zero long-term DC bias |
| Power Dissipation | 890 mW typ at 133 MHz - Optimized for thermal management in dense PCB layouts with 100-pin TQFP footprint |
| Supply Voltage | +3.14 V to +3.46 V - Tight 3.3 V tolerance ensures stable operation with standard LDO regulators and decoupling networks |
| Operating Temperature | −10°C to +70°C - Qualified for industrial ambient environments without derating |
Pinout & Package
DS90CR486VSX/NOPB uses a 100-pin Thin Quad Flat Package (TQFP), package code NEZ0100A, with exposed thermal pad and 0.5 mm pitch. Pin assignments follow flow-through layout for minimal trace routing complexity and signal integrity preservation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RxINP/RxINM (×8) | LVD differential data inputs | Accept serialized 8-channel LVDS data; require 100 Ω differential termination at receiver end |
| RxCLKP/RxCLKM | LVD differential clock input | Synchronizes internal PLL and data recovery; defines maximum bit rate and sampling edge alignment |
| RxOUT0–RxOUT47 | LVCMOS/LVTTL parallel data outputs | Drive 48-bit wide synchronous bus; specified for 8 pF load and ±2 mA drive strength |
| RxCLKOUT | LVCMOS/LVTTL clock output | Rising edge serves as system data valid strobe; matches RxOUT timing with <4.1 ns hold margin at 133 MHz |
| PD | Power-down control input | Active-low; forces all RxOUT to LOW and shuts down PLL when asserted below 2.5 V |
| DESKEW | Deskew initialization control | Must be held HIGH for normal operation; pulsed LOW >4 cycles restarts 20 ms calibration sequence |
| BAL | DC balance enable | HIGH enables word-level inversion logic to minimize low-frequency content on LVDS lines |
| CON1 | Configuration lock | Mandatory HIGH tie for proper deskew and DC balance initialization in DS90CR486-specific modes |
Key Features
| Feature | Design Value |
|---|---|
| Cable deskew function | Per-pair skew compensation up to ±150 ps at full 133 MHz rate eliminates need for matched-length routing or external delay tuning |
| DC balance support | Dynamic word inversion reduces ISI and EMI by maintaining near-zero average DC level on all 8 LVDS pairs |
| Backward compatibility | Footprint- and functional-compatible with DS90CR481/483/484 and interoperable with DS90CR485 serializer |
| Flow-through pinout | Input pins on top/bottom edges and outputs on left/right edges simplify layer stack routing and reduce crosstalk |
| Low-power operation | 890 mW typical at 133 MHz enables use in thermally constrained modules without forced air cooling |
Applications
| Industrial Machine Vision Interface | Medical Imaging Backplane |
|---|---|
|
Use Scenario: High-resolution CMOS sensor data transmission from camera head to processing board over 2-meter shielded twisted-pair cable. IC Role / Device Role / Timing Role: Deserializes 48-bit pixel data and pixel clock from DS90CR485 serializer; provides deskewed LVCMOS outputs synchronized to RxCLKOUT rising edge. Use Value: Replaces bulky 98-wire parallel ribbon cable with 19-conductor LVDS harness, reducing connector size by 80% and EMI emissions by >20 dB. |
Use Scenario: Real-time ultrasound image data transfer between probe electronics and mainframe over rigid-flex backplane. IC Role / Device Role / Timing Role: Receives serialized video stream from DS90CR485; applies DC balance to suppress low-frequency noise coupling into analog front-end circuits. Use Value: Maintains signal integrity across 15 cm of FR4 backplane traces with <150 ps inter-pair skew, enabling 10-bit depth at 133 MHz sampling. |
| Automotive ADAS Display Link | Aerospace Avionics Video Distribution |
|
Use Scenario: Driving high-brightness TFT display in driver information cluster using serialized video from SoC over automotive-grade cable. IC Role / Device Role / Timing Role: Converts DS90CR485 output to parallel RGB+DE+HS+VS signals; uses PD pin for low-power sleep mode during vehicle ignition-off. Use Value: Achieves 6.384 Gbps throughput within AEC-Q100 stress limits while supporting hot-plug detection via floating-input fail-safe biasing. |
Use Scenario: Transmitting synthetic vision data from graphics processor to cockpit display units across multi-drop avionics backplane. IC Role / Device Role / Timing Role: Acts as endpoint deserializer in point-to-point link; leverages CON1/BAL/DESKEW pins for deterministic configuration under DO-254 design assurance. Use Value: Provides traceable deskew calibration (20 ms lock time) and failsafe output behavior on disconnected inputs-critical for flight-critical display redundancy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar deserializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90CR484VS/NOPB | Lower max clock (80 MHz), no deskew support, 100-pin TQFP | Targeted for shorter interconnects (<1 m) where skew is negligible; lacks BAL/DESKEW pins | Select when cost sensitivity outweighs long-cable performance and DC balance is unnecessary |
| SN65LVDS32PW | Quad LVDS receiver only (no deserialization logic), 16-pin TSSOP, no PLL or deskew | Requires external FPGA or ASIC to reconstruct parallel data; no built-in clock recovery or timing alignment | Choose only for simple LVDS signal conditioning where full Channel Link protocol handling is implemented elsewhere |
Compared with DS90CR484VS/NOPB, DS90CR486VSX/NOPB adds critical deskew and DC balance for long-reach links; versus SN65LVDS32PW, it integrates full deserialization, clock recovery, and timing alignment-eliminating FPGA logic and reducing BOM count by ≥3 components.
Availability
DS90CR486VSX/NOPB is available at Aetrix Electronics and suitable for industrial machine vision, medical imaging backplanes, automotive ADAS displays, aerospace avionics video distribution, and test equipment requiring stable component supply and long-term lifecycle support.
Supply support for DS90CR486VSX/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, with decades of expertise in high-speed interface solutions.
The DS90CR486VSX/NOPB belongs to TI's Channel Link family, designed specifically to replace wide parallel buses in noise-sensitive, space-constrained, and EMI-regulated systems using robust LVDS serialization/deserialization.
FAQ
What is the maximum supported cable length for DS90CR486VSX/NOPB in a typical application?
The DS90CR486VSX/NOPB does not specify a fixed maximum cable length, as it depends on cable type, quality, and pre-emphasis settings in the companion serializer (e.g., DS90CR485). With proper 100 Ω differential termination and optimized PCB layout, reliable operation has been demonstrated over 10-meter shielded twisted-pair cables at 133 MHz when used with pre-emphasis-enabled transmitters and DC balance enabled.
Does DS90CR486VSX/NOPB support hot-plug detection or fail-safe behavior on floating inputs?
Yes, DS90CR486VSX/NOPB includes input fail-safe bias circuitry. When LVDS inputs (RxINP/RxINM or RxCLKP/RxCLKM) are floating or terminated but un-driven, the receiver outputs default to a stable HIGH state. If only the clock is missing, outputs retain their last valid data state - a key reliability feature for DS90CR486VSX/NOPB in systems with intermittent cable connections.
How does the DESKEW pin function during normal operation of DS90CR486VSX/NOPB?
During normal operation, the DESKEW pin must be held HIGH (tied to VCC) to enable continuous deskew tracking. If pulled LOW for more than four clock cycles, DS90CR486VSX/NOPB initiates a full 20 ms recalibration sequence - during which RxOUT remains LOW and no valid data is output. This behavior allows field-triggered re-synchronization after cable swaps or thermal drift events.
Can DS90CR486VSX/NOPB operate without DC balance enabled, and what impact does that have?
Yes, DS90CR486VSX/NOPB operates with DC balance disabled (BAL = LOW or open). In this mode, the DCB bit is omitted and word inversion is inactive. While system functionality remains intact, disabling DC balance increases low-frequency content on LVDS lines, potentially worsening ISI over longer cables or higher loss media - a trade-off confirmed in DS90CR486VSX/NOPB characterization data.
Is DS90CR486VSX/NOPB pin-compatible with earlier Channel Link receivers like DS90CR484?
No, DS90CR486VSX/NOPB is not pin-compatible with DS90CR484. Although both use 100-pin TQFP packages, DS90CR486VSX/NOPB introduces dedicated pins for DESKEW, CON1, and enhanced PLLSEL functionality not present on DS90CR484. Layout reuse requires redesign; however, DS90CR486VSX/NOPB maintains functional interoperability with DS90CR484's serializer counterparts.
DS90CR486VSX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- µSerDes™
- Package/Case:
- 100-TQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Deserializer
- Data Rate:
- 6.384Gbps
- Input Type:
- LVDS
- Output Type:
- LVCMOS, LVTTL
- Number of Inputs:
- 8
- Number of Outputs:
- 48
- Voltage - Supply:
- 3.14V ~ 3.46V
- Operating Temperature:
- -10°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
DS90CR486VSX/NOPB FAQ
1.How can I place an order for DS90CR486VSX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90CR486VSX/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 DS90CR486VSX/NOPB reliable?
The price and inventory of DS90CR486VSX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90CR486VSX/NOPB is usually 5 days.
3.What payment methods are accepted for DS90CR486VSX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90CR486VSX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90CR486VSX/NOPB?
DS90CR486VSX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90CR486VSX/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 DS90CR486VSX/NOPB?
For technical support, including DS90CR486VSX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90CR486VSX/NOPB requirements.
6.How does Aetrix verify that DS90CR486VSX/NOPB is sourced from the original manufacturer or authorized distributors?
All DS90CR486VSX/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 DS90CR486VSX/NOPB meets industry standards.
7.What is the process for return or replacement of DS90CR486VSX/NOPB?
All DS90CR486VSX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS90CR486VSX/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 DS90CR486VSX/NOPB part is unused and in its original packaging.
Return procedure for DS90CR486VSX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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