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Texas Instruments DS90CR483VJD
- Part No.:
- DS90CR483VJD
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 100-TQFP
- Datasheet:
-
DS90CR483VJD.pdf
- Description:
- IC SERIALIZER 48BIT 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,202
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Product details
Overview
DS90CR483VJD from Texas Instruments is a 48-bit LVDS serializer IC that converts parallel CMOS/TTL data into eight differential LVDS data streams plus one LVDS clock, supporting input clock frequencies from 33 MHz to 112 MHz and delivering up to 5.38 Gbits/sec bandwidth. It features pre-emphasis control, DC-balanced transmission, and flow-through pinout, and is used in high-speed video backplanes and long-cable display interfaces.
For engineers reviewing the DS90CR483VJD datasheet, DS90CR483VJD pinout, DS90CR483VJD application, or DS90CR483VJD equivalent, this page provides verified technical context, real-world timing margins, cable deskew implementation guidance, and validated alternative options for LVDS SER/DES system design.
Technical Context
The DS90CR483VJD implements a PLL-based serialization architecture with cycle-to-cycle jitter rejection on the TxCLK input, enabling stable output timing even with noisy clock sources. Its transmitter supports user-configurable pre-emphasis via the PRE pin (0.75 V to VCC) and optional DC balancing when the BAL pin is asserted high.
It operates exclusively in point-to-point configurations with 100 Ω differential termination at the receiver end. The device requires external pull-up resistor selection for pre-emphasis level setting and uses the DS_OPT pin to initiate deskew calibration - a function only active when paired with DS90CR484 in DC-balance mode and limited to ≤80 MHz clock rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Clock Range | 33–112 MHz: defines minimum/maximum parallel data throughput; 112 MHz enables 672 Mbps per LVDS lane and 5.38 Gbps aggregate. |
| Supply Voltage | +3.3 V nominal (3.0–3.6 V): requires tight regulation; supply noise must stay below 100 mVp-p to maintain RSKM margin. |
| Differential Output Voltage | 250–450 mV: ensures robust LVDS signal integrity across 100 Ω loads; meets ANSI/TIA/EIA-644-1995 standard. |
| Cycle-to-Cycle Jitter Rejection | <100 ps TJCC: limits output jitter budget, directly improving receiver sampling margin (RSKM/RSKMD). |
| Power Dissipation | 2.3 W max at +25°C (100-pin TQFP): mandates thermal-aware PCB layout with adequate copper pour and airflow. |
| DC Balance Support | Enabled when BAL = HIGH: adds disparity control bit per LVDS channel to minimize low-frequency content and reduce ISI on >5 m cables. |
| Pre-emphasis Control | Voltage-controlled via PRE pin (0.75 V–VCC): adjusts dynamic drive strength to compensate for frequency-dependent cable loss. |
Pinout & Package
DS90CR483VJD is housed in a 100-lead TQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows flow-through layout to simplify PCB routing and minimize trace length mismatch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TxIN[0:47] | Parallel CMOS/TTL Data Inputs | Accepts 48-bit wide parallel data; 5 V tolerant - compatible with legacy TTL logic without level shifters. |
| TxCLK IN | Input Clock Reference | Drives internal PLL; falling edge is critical for lock stability; transition time must be 1.0–3.0 ns. |
| PRE | Pre-emphasis Control Input | Analog voltage input (0.75 V–VCC) sets dynamic current boost during LVDS transitions; requires external pull-up resistor. |
| BAL | DC Balance Enable | High = enable cycle-to-cycle disparity control; required for deskew and optimal long-cable performance (>5 m). |
| DS_OPT | Deskew Calibration Trigger | Low for ≥4 clock cycles initiates automatic deskew training sequence; must be coordinated with DS90CR484 DESKEW pin. |
| PD | Power-Down Control | Active-high; places LVDS outputs in TRI-STATE and shuts down PLLs, reducing ICC to 5 µA. |
| VCC, GND | Power Supply Pins | Multiple dedicated VCC/GND pairs distributed across package edges to minimize supply impedance and ground bounce. |
| TxOUT[0:7], TxCLK OUT | LVDS Differential Outputs | Eight data lanes + one clock lane; each pair requires 100 Ω differential termination at receiver end. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Enables straight-layer PCB routing with matched trace lengths - reduces skew-induced timing violations in high-speed layouts. |
| User-selectable pre-emphasis | Four-level analog control (via PRE pin voltage) allows precise compensation of cable attenuation without firmware or register writes. |
| DC-balanced transmission | Reduces baseline wander and inter-symbol interference on long cables by dynamically inverting data words to maintain zero average DC. |
| Cable deskew support | Compensates for pair-to-pair skew up to ±1 LVDS bit time (e.g., ±11.9 ns at 84 MHz), enabling reliable operation over 5+ meter cables. |
| 5 V tolerant inputs | Eliminates need for external level translators when interfacing with legacy 5 V microcontrollers or FPGAs driving TxIN/TxCLK. |
Applications
| Industrial LCD Panel Interface | Medical Imaging Backplane |
|---|---|
Use Scenario: Transmitting high-resolution RGB video (1920×1200@60Hz) from controller board to remote LCD panel over 6-meter shielded twisted-pair cable. IC Role / Device Role / Timing Role: DS90CR483VJD acts as serializer, converting parallel pixel data into compact LVDS streams while maintaining pixel-clock alignment and minimizing EMI. Use Value: Enables single-cable solution replacing 98-conductor flat flex; pre-emphasis and DC balance preserve eye opening at 112 MHz over full cable length. | Use Scenario: Connecting FPGA-based image acquisition module to display processing unit inside MRI cabinet using 4-meter backplane traces. IC Role / Device Role / Timing Role: DS90CR483VJD serializes raw 12-bit medical image data streams with deterministic latency and jitter suppression for real-time rendering. Use Value: Jitter rejection ensures sub-100 ps timing uncertainty at receiver, preserving pixel integrity across multi-board imaging pipeline. |
| Avionics Display Distribution | Test Equipment Signal Generator |
Use Scenario: Distributing synthetic vision graphics from central processor to multiple cockpit displays via daisy-chained LVDS links in weight-constrained aircraft wiring harness. IC Role / Device Role / Timing Role: DS90CR483VJD serves as high-integrity serializer with power-down capability for hot-swap display modules and EMI-hardened cabling. Use Value: Flow-through pinout simplifies conformal coating and vibration-resistant routing; 5 V tolerant inputs interface directly with legacy ARINC-429 I/O buffers. | Use Scenario: Generating synchronized multi-channel digital stimulus patterns (e.g., DDR memory test vectors) from AWG to DUT over 3-meter differential cables. IC Role / Device Role / Timing Role: DS90CR483VJD converts pattern memory output into phase-aligned LVDS lanes, ensuring deterministic setup/hold at DUT inputs. Use Value: Cable deskew and RSKM margin guarantee <50 ps timing skew across all 48 bits - critical for high-speed functional test coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVDS serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90CF564MTD | 28-bit serializer; no pre-emphasis or deskew; lower max clock (85 MHz); 64-pin TSSOP | Suitable for shorter-reach (<2 m), lower-bandwidth interfaces like embedded display modules | Select when 48-bit width and long-cable drive are unnecessary - reduces BOM cost and PCB area. |
| SN65LVDS31PW | Quad LVDS line driver (not serializer); no PLL, no clock embedding; 16-pin TSSOP | Used for point-to-point LVDS signal extension only - requires separate clock distribution and parallel-to-serial logic | Choose only if system already includes FPGA-based serialization and needs simple LVDS physical layer buffering. |
Compared with DS90CR483VJD, DS90CF564MTD offers reduced functionality but lower cost and power for narrower buses, while SN65LVDS31PW lacks integrated serialization entirely - requiring external logic and careful clock/data alignment management not needed with DS90CR483VJD.
Availability
DS90CR483VJD is available at Aetrix Electronics and suitable for industrial LCD panel interfaces, medical imaging backplanes, avionics display distribution, and test equipment signal generation requiring stable component supply and long-term lifecycle support.
Supply support for DS90CR483VJD 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and high-speed interface solutions for industrial, automotive, and communications markets.
The DS90CR483VJD belongs to TI's Channel Link family of high-speed SER/DES ICs, designed specifically to replace bulky parallel TTL buses with compact, low-EMI LVDS links in display, imaging, and instrumentation systems.
FAQ
What is the maximum cable length supported by DS90CR483VJD?
The DS90CR483VJD supports cables up to 5+ meters when used with DS90CR484 in DC-balance mode and with pre-emphasis enabled. At 112 MHz, 5-meter performance requires ~1.5 V PRE voltage (9 kΩ pull-up). Cable length is constrained by RSKM/RSKMD margins, inter-symbol interference, and media-dependent skew - actual reach depends on cable quality, termination, and clock rate.
Does DS90CR483VJD require external configuration registers or firmware?
No, DS90CR483VJD is a hardware-configured serializer with no internal registers or SPI/I²C interface. All functions - including pre-emphasis level, DC balance enable, and deskew trigger - are controlled by static pin voltages (PRE, BAL, DS_OPT) and do not require software initialization or runtime updates.
Can DS90CR483VJD operate without DC balance enabled?
Yes, DS90CR483VJD operates in non-DC-balance mode when BAL is low. In this mode, pre-emphasis remains functional, and the device maintains compatibility with older 21-bit and 28-bit Channel Link receivers. However, RSKM degrades on long cables due to increased ISI, and deskew is disabled.
What is the purpose of the DS_OPT pin on DS90CR483VJD?
The DS_OPT pin on DS90CR483VJD initiates the deskew calibration sequence when driven low for ≥4 clock cycles. It synchronizes the transmitter to send a known pattern (e.g., 1111100) so the DS90CR484 receiver can auto-adjust sampling strobes. DS_OPT must be high during normal data transmission and low only during deskew training.
Is DS90CR483VJD pin-compatible with other Channel Link transmitters?
No, DS90CR483VJD is not pin-compatible with earlier Channel Link devices like DS90CR285 or DS90CR286 due to differences in pin count (100 vs. 64), signal mapping, and feature pins (e.g., PRE, BAL, DS_OPT). Its 100-pin TQFP footprint and flow-through layout are unique to the 48-bit generation.
DS90CR483VJD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 100-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Serializer
- Data Rate:
- 5.38Gbps
- Input Type:
- CMOS/TTL
- Output Type:
- LVDS
- Number of Inputs:
- 48
- Number of Outputs:
- 8
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -10°C ~ 70°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
DS90CR483VJD FAQ
1.How can I place an order for DS90CR483VJD through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90CR483VJD 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 DS90CR483VJD reliable?
The price and inventory of DS90CR483VJD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90CR483VJD is usually 5 days.
3.What payment methods are accepted for DS90CR483VJD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90CR483VJD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90CR483VJD?
DS90CR483VJD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90CR483VJD 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 DS90CR483VJD?
For technical support, including DS90CR483VJD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90CR483VJD requirements.
6.How does Aetrix verify that DS90CR483VJD is sourced from the original manufacturer or authorized distributors?
All DS90CR483VJD 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 DS90CR483VJD meets industry standards.
7.What is the process for return or replacement of DS90CR483VJD?
All DS90CR483VJD units undergo pre-shipment inspection (PSI). If there is an issue with DS90CR483VJD, 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 DS90CR483VJD part is unused and in its original packaging.
Return procedure for DS90CR483VJD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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