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Texas Instruments DS32EV400SQX/NOPB
- Part No.:
- DS32EV400SQX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
DS32EV400SQX/NOPB.pdf
- Description:
- IC INTERFACE SPECIALIZED 48WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,493
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Product details
Overview
DS32EV400SQX/NOPB from Texas Instruments is a programmable quad CML equalizer IC for high-speed serial links, delivering up to 14 dB equalization at 3.2 Gbps, 0.12 UI residual deterministic jitter with 40" FR4 traces, and individual channel enable/signal detect functionality-used in DisplayPort, XAUI, and InfiniBand receiver front-ends.
For engineers reviewing the DS32EV400SQX/NOPB datasheet, DS32EV400SQX/NOPB pinout, DS32EV400SQX/NOPB application, or DS32EV400SQX/NOPB equivalent, key selection criteria include per-channel SMBus-programmable boost (8 levels), dual supply support (2.5V/3.3V), CML I/O compatibility, low-power standby mode, and 48-pin WQFN package thermal performance.
Technical Context
The DS32EV400SQX/NOPB implements four independent CML-based equalization channels, each integrating a limiting amplifier, DC offset correction, and programmable gain control. Equalization strength is selectable via either hardware pins (BST[2:0]) or SMBus registers, enabling uniform or per-channel tuning.
It supports both AC- and DC-coupled inputs across 1–3.2 Gbps, with signal detect thresholds configurable via SMBus (70/40 mVp-p default), and output amplitude adjustable to 400–760 mVp-p. The device maintains deterministic jitter suppression under 40" FR4 trace loss while operating within –40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Equalization Range | Up to 14 dB loss compensation at 3.2 Gbps-enables reliable link extension over long FR4 traces or passive cables. |
| Data Rate Support | 1 Gbps to 3.2 Gbps-covers DisplayPort 1.1a/1.2, XAUI, and InfiniBand DDR/QDR signaling rates. |
| Residual Deterministic Jitter | 0.12 UIP-P at 3.2 Gbps with 40" FR4-meets tight jitter budgets for multi-gigabit serial receivers. |
| Supply Voltage | Single 2.5 V ±5% or 3.3 V ±10%-simplifies power design with no auxiliary rails required. |
| Power Consumption | 360–490 mW typical at 2.5 V (all channels active)-supports thermally constrained board layouts. |
| ESD Rating | 9 kV HBM-provides robust handling margin during assembly and system integration. |
| Operating Temperature | –40°C to +85°C-qualified for industrial and commercial embedded display and networking equipment. |
Pinout & Package
DS32EV400SQX/NOPB uses a 7 mm × 7 mm, 48-pin WQFN package with exposed thermal pad (DAP) tied to ground. Pin count includes 8 differential input pairs (IN_0± to IN_3±), 8 differential output pairs (OUT_0± to OUT_3±), 4 enable (EN0–EN3), 4 signal detect (SD0–SD3), SMBus interface (SDA/SDC/CS), BST control (BST_0–BST_2), FEB, and 12 VDD/GND connections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN_0+ / IN_0– | CML differential input (Channel 0) | Accepts AC/DC-coupled NRZ data; integrated 100 Ω termination reduces external component count. |
| OUT_0+ / OUT_0– | CML differential output (Channel 0) | Drives 50 Ω-terminated loads; on-chip 50 Ω pull-up to VDD simplifies PCB routing. |
| EN0 | LVCMOS channel enable input | Active-high control for Channel 0 power gating; internal pull-up enables default-active operation. |
| SD0 | LVCMOS signal detect output | Asserts high when input exceeds programmable threshold (default 70 mVp-p); supports auto-enable via EN0 tie-off. |
| BST_0 / BST_1 / BST_2 | LVCMOS equalizer boost select | 3-bit code selects one of eight fixed boost levels applied to all channels when FEB = high. |
| FEB | LVCMOS boost control mode select | High = pin-controlled boost; low = SMBus-per-channel boost-enables flexible configuration architecture. |
| SDA / SDC / CS | SMBus 2.0 interface | Allows register-level control of boost, SD thresholds, output level, and channel enable state. |
| VDD / GND / DAP | Power and ground terminals | 12 dedicated VDD/GND pins + center thermal pad ensure stable low-noise operation at full data rate. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel signal detect with programmable thresholds | Enables automatic channel activation/deactivation based on link presence-reducing idle power by >80% per disabled channel. |
| Hardware- or SMBus-selectable equalization strength | Supports both simple pin-strapped deployment and fine-grained per-channel optimization without firmware changes. |
| Dual-voltage supply compatibility (2.5 V / 3.3 V) | Eliminates level-shifting requirements in mixed-supply systems-interoperates directly with FPGA I/O banks and ASIC PHYs. |
| Low residual jitter with wide common-mode input range | Maintains <0.12 UI deterministic jitter across –0.2 V to VDD–0.8 V input common-mode-robust against board-level noise and skew. |
| Integrated CML I/O with on-die termination | Reduces BOM count by eliminating external 100 Ω differential and 50 Ω source terminations-improves signal integrity and layout density. |
Applications
| DisplayPort Source Extension | XAUI Backplane Re-timer |
|---|---|
|
Use Scenario: Extending DisplayPort 1.2 link reach beyond 2 meters using low-cost FR4 PCB traces between GPU and panel interface IC. IC Role / Device Role / Timing Role: Quad-channel post-cable equalizer placed at receiver side to restore eye opening degraded by interconnect loss and ISI. Use Value: Enables compliance with VESA DisplayPort standard eye mask at 2.7 Gbps with 40" FR4, avoiding costly active cables or retimers. |
Use Scenario: Compensating insertion loss in 10 GbE XAUI backplanes with >30 dB attenuation at Nyquist frequency. IC Role / Device Role / Timing Role: Four-lane equalizer inserted between backplane connector and MAC/PHY ASIC to recover deterministic jitter and amplitude loss. Use Value: Restores BER <1e–12 at 3.125 Gbps per lane without requiring full re-timing-reducing latency and power vs. clock-data recovery solutions. |
| InfiniBand QDR Interconnect | 8b/10b Protocol Agnostic Link Booster |
|
Use Scenario: Boosting signal integrity in InfiniBand QDR switch fabric cards connecting line cards over midplane connectors. IC Role / Device Role / Timing Role: Lane-by-lane equalization stage before CDR in host channel adapter or target HCA to meet IBTA jitter specs. Use Value: Achieves <0.15 UI total jitter at 10 Gbps with 24 AWG twin-ax cable-meeting InfiniBand QDR electrical compliance without redesign. |
Use Scenario: Supporting multiple 8b/10b protocols (FC, SATA, PCIe Gen1) on shared high-speed interconnect infrastructure. IC Role / Device Role / Timing Role: Protocol-transparent analog equalizer that operates on raw NRZ data regardless of encoding scheme. Use Value: Eliminates need for protocol-specific retimers-reducing inventory complexity and enabling reuse across storage, compute, and comms platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel high-speed equalizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS100BR410SQ/NOPB | Higher max data rate (12.5 Gbps), integrated CDR, 3.3 V only, larger 64-pin WQFN package. | Required for PCIe Gen3/Gen4 or SAS-3 where clock recovery is mandatory; not suitable for pure equalization-only use cases. | Select DS100BR410SQ/NOPB only if CDR functionality and >3.2 Gbps support are needed-adds cost and complexity for DS32EV400SQX/NOPB's target applications. |
| MAX3801ETM+ | Quad-channel, 3.2 Gbps, but uses PECL I/O (not CML), requires negative supply (–5.2 V), no SMBus interface. | Limited to legacy telecom systems with PECL infrastructure; incompatible with modern 2.5 V/3.3 V CML FPGA interfaces. | Choose MAX3801ETM+ only for drop-in replacement in existing PECL-based designs-requires level-shifting and dual-supply redesign for new CML systems. |
Compared with DS100BR410SQ/NOPB and MAX3801ETM+, DS32EV400SQX/NOPB provides optimal balance of CML-native interface, SMBus configurability, low-power standby, and cost-effective WQFN packaging for DisplayPort, XAUI, and InfiniBand receiver-side equalization at ≤3.2 Gbps.
Availability
DS32EV400SQX/NOPB is available at Aetrix Electronics and suitable for DisplayPort source extensions, XAUI backplane signal conditioning, and InfiniBand QDR interconnects requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for DS32EV400SQX/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 high-speed interface solutions for industrial, automotive, and communications markets.
The DS32EV400SQX/NOPB belongs to TI's high-speed signal conditioning product line, designed specifically to extend reach and improve signal integrity in multi-gigabit serial links using DisplayPort, XAUI, and InfiniBand protocols.
FAQ
What is the maximum supported data rate for DS32EV400SQX/NOPB?
The DS32EV400SQX/NOPB is specified for operation up to 3.2 Gbps across all four channels, with validated performance including 0.12 UI residual deterministic jitter on 40" FR4 traces at that rate. It also supports lower rates down to 1 Gbps, maintaining equalization efficacy and low jitter across the full range.
Does DS32EV400SQX/NOPB support both AC- and DC-coupled inputs?
Yes, DS32EV400SQX/NOPB supports both AC- and DC-coupled differential inputs, accommodating long-run-length patterns like PRBS-31 and balanced codes such as 8b/10b. Its wide input common-mode range (VDDTX – 0.8 V to VDDTX – 0.2 V) ensures robust operation with diverse transmitter output architectures.
How is equalization strength configured on DS32EV400SQX/NOPB?
DS32EV400SQX/NOPB offers two configuration modes: hardware pin control (via BST_0/BST_1/BST_2 with FEB high) for uniform 8-level boost across all channels, or SMBus register control (with FEB low) for independent per-channel boost programming-enabling precise adaptation to asymmetric channel loss profiles.
Can DS32EV400SQX/NOPB operate from a 2.5 V supply?
Yes, DS32EV400SQX/NOPB is fully specified for 2.5 V ±5% operation, consuming 360–490 mW typical with all channels enabled. Electrical characteristics-including jitter, signal detect thresholds, and output amplitude-are guaranteed across both 2.5 V and 3.3 V supply conditions.
What package type and thermal features does DS32EV400SQX/NOPB use?
DS32EV400SQX/NOPB uses a 7 mm × 7 mm, 48-pin WQFN package with an exposed thermal pad (DAP) that must be soldered to a solid ground plane. With θJA = 30°C/W (no airflow), this construction enables reliable thermal dissipation at full 3.2 Gbps operation in compact industrial and embedded enclosures.
DS32EV400SQX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Signal Processing
- Interface:
- Serial
- Voltage - Supply:
- 2.5V, 3.3V
- Supplier Device Package:
- 48-WQFN (7x7)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
DS32EV400SQX/NOPB FAQ
1.How can I place an order for DS32EV400SQX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS32EV400SQX/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 DS32EV400SQX/NOPB reliable?
The price and inventory of DS32EV400SQX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS32EV400SQX/NOPB is usually 5 days.
3.What payment methods are accepted for DS32EV400SQX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS32EV400SQX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS32EV400SQX/NOPB?
DS32EV400SQX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS32EV400SQX/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 DS32EV400SQX/NOPB?
For technical support, including DS32EV400SQX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS32EV400SQX/NOPB requirements.
6.How does Aetrix verify that DS32EV400SQX/NOPB is sourced from the original manufacturer or authorized distributors?
All DS32EV400SQX/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 DS32EV400SQX/NOPB meets industry standards.
7.What is the process for return or replacement of DS32EV400SQX/NOPB?
All DS32EV400SQX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS32EV400SQX/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 DS32EV400SQX/NOPB part is unused and in its original packaging.
Return procedure for DS32EV400SQX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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