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Texas Instruments DS100DF410SQE/NOPB
- Part No.:
- DS100DF410SQE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
DS100DF410SQE/NOPB.pdf
- Description:
- IC INTERFACE SPECIALIZED 48WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:278
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Product details
Overview
DS100DF410SQE/NOPB from Texas Instruments is a quad-channel 10.3125 Gbps retimer IC for high-speed serial links, integrating adaptive CTLE, 5-tap DFE, CDR, and programmable de-emphasis driver per channel. It operates on a single 2.5 V ±5% supply, delivers ≤300 ps latency, supports BER <1×10⁻¹⁵, and targets SFP+ optical modules and lossy backplane interconnects.
For engineers reviewing the DS100DF410SQE/NOPB datasheet, DS100DF410SQE/NOPB pinout, DS100DF410SQE/NOPB application, or DS100DF410SQE/NOPB equivalent, key selection criteria include per-channel lock time (<15 ms), adaptive equalization up to 34 dB at 5 GHz, configurable VOD (600–1300 mVp-p), and SMBus/EEPROM configuration support for system bring-up and field tuning.
Technical Context
The DS100DF410SQE/NOPB implements a full retiming data path per channel: signal detect → adaptive CTLE → DFE → CDR → de-emphasis driver. Each channel independently locks to 10.3125 Gbps Ethernet signals with no reference clock required in Ref_mode 0, while Ref_mode 3 supports external 25 MHz reference for enhanced jitter performance.
Its architecture combines continuous-time linear equalization with decision-feedback equalization to compensate for channel loss, crosstalk, and post-cursor ISI. The on-chip eye monitor and PRBS generator enable real-time link validation without external test equipment, and flow-through pinout simplifies PCB routing in dense front-panel or mid-plane layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10.3125 Gbps - precisely matches 10GbE SFF-8431 line rate; supports 1.25 Gbps for 1GbE fallback. |
| Equalization | Adaptive CTLE + 5-tap DFE - provides up to 34 dB boost at 5 GHz to recover signals over FR-4 backplanes up to 40 inches. |
| Latency | ~300 ps - enables low-jitter retiming in timing-critical switch fabric and ASIC interconnect paths. |
| Power Dissipation | 720 mW total (180 mW/channel) - enables thermal management in compact optical module and line card designs. |
| Supply Voltage | 2.5 V ±5% - single-rail operation reduces power delivery complexity versus dual-supply retimers. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and telecom infrastructure environments including base station and core router applications. |
| Jitter Performance | TJ <10 ps (BER=10⁻¹²); Jitter transfer –6 dB @10 MHz - resets system jitter budget for cascaded high-speed links. |
Pinout & Package
The DS100DF410SQE/NOPB uses a 48-pin WQFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (DAP = GND). Pin layout supports flow-through routing for differential I/O pairs and separates analog loop filter pins (LPF_CP_n/LPF_REF_n) to minimize noise coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RXP0–RXP3, RXN0–RXN3 | High-speed CML input pair | Differential receiver inputs (100 Ω impedance); AC-coupled; support signal detect and automatic power-down. |
| TXP0–TXP3, TXN0–TXN3 | High-speed CML output pair | Differential transmitter outputs (100 Ω impedance); AC-coupled; programmable VOD and de-emphasis. |
| LPF_CP_0–LPF_CP_3, LPF_REF_0–LPF_REF_3 | Analog loop filter connection | Each pair requires 22 nF ±10% capacitor; sets PLL bandwidth (5 MHz typical) and stabilizes CDR lock. |
| REFCLK_IN / REFCLK_OUT | Reference clock interface | 25 MHz ±100 ppm input; buffered output enables multi-device synchronization without external fanout buffer. |
| LOCK_0–LOCK_3 / ADDR_0–ADDR_3 | Shared function pin | Lock status indicator at power-up; SMBus address strap after reset - enables four independent device addresses on one bus. |
| SDA / SDC / EN_SMB / INT | SMBus control & interrupt | 3.3 V-tolerant open-drain I/O; INT asserts on CDR unlock, LOS, or eye opening violation; EN_SMB selects master/slave mode. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel adaptive CTLE | Four-stage, 256 possible boost combinations; auto-adapted during lock acquisition to optimize high-frequency gain for specific channel loss profile. |
| Self-calibrating 5-tap DFE | Automatically adapts tap weights and polarities to suppress crosstalk and post-cursor ISI; powered down by default to save power. |
| Programmable transmit VOD | 600–1300 mVp-p range via SMBus register 0x2D; enables precise matching to downstream receiver sensitivity and trace loss. |
| Adjustable analog de-emphasis | Up to –12 dB setting; pre-distorts output waveform to counteract high-frequency attenuation in copper cables or PCB traces. |
| On-chip diagnostics | Real-time eye monitor (EOM) and PRBS generator per channel - eliminates need for external BERT during system bring-up. |
Applications
| Front-Port SFP+ Optical Modules | Backplane Reach Extension |
|---|---|
|
Use Scenario: Signal integrity degradation in 10GbE SFP+ transceivers due to long PCB traces and connector losses. IC Role / Device Role / Timing Role: Retimer placed between host ASIC and SFP+ cage to restore clean, low-jitter 10.3125 Gbps data before optical conversion. Use Value: Enables use of cost-effective passive direct-attach copper cables and extends reach beyond 7m without active optics. |
Use Scenario: High-bit-rate signal attenuation and inter-symbol interference across 20–40 inch FR-4 backplane traces. IC Role / Device Role / Timing Role: Mid-plane retimer inserted between line card and switch fabric ASIC to regenerate data and reset jitter budget. Use Value: Achieves BER <1×10⁻¹⁵ over lossy backplanes using adaptive CTLE+DFE, eliminating need for expensive low-loss laminates. |
| 10GbE Switch Fabric Interconnect | ASIC-to-ASIC High-Speed Link |
|
Use Scenario: Cascaded jitter accumulation across multiple retimers and SerDes blocks in modular chassis switches. IC Role / Device Role / Timing Role: Low-latency (<300 ps) retimer deployed at fabric edge to clean incoming 10GbE streams before switching matrix ingress. Use Value: Reduces total system jitter by >50% compared to repeater-only solutions, enabling reliable 4-switch hop topologies. |
Use Scenario: Signal corruption from crosstalk and reflections between adjacent high-speed lanes on multi-lane ASIC interfaces. IC Role / Device Role / Timing Role: Per-lane retimer integrated into ASIC carrier board to isolate and condition each x4 PCIe or 10GbE lane independently. Use Value: Improves margin against deterministic jitter sources; allows tighter lane spacing and higher density packaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar retimer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS100RT410SQ/NOPB | No DFE; CTLE+CDR+DE only; lower power (120 mW/channel); fixed EQ settings. | Suitable for less lossy channels where DFE is unnecessary; lacks adaptive equalization for crosstalk-heavy environments. | Select when channel loss <15 dB @5 GHz and system-level jitter tolerance permits simpler equalization. |
| DS110DF410SQ/NOPB | Wider data rate range (8.5–11.3 Gbps); same DFE/CTLE architecture; identical pinout and register map. | Supports 11.3 Gbps InfiniBand and 10GBASE-KR; backward compatible with DS100DF410SQE/NOPB firmware in 10.3125 Gbps mode. | Choose for future-proofing or multi-standard systems requiring flexibility beyond fixed 10.3125 Gbps operation. |
Compared with DS100RT410SQ/NOPB, DS100DF410SQE/NOPB adds critical DFE capability for crosstalk mitigation in dense interconnects; versus DS110DF410SQ/NOPB, it trades bandwidth flexibility for optimized 10GbE power efficiency and reduced configuration complexity.
Availability
DS100DF410SQE/NOPB is available at Aetrix Electronics and suitable for 10GbE optical modules, telecom line cards, and high-density switch fabric designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DS100DF410SQE/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, communications, and enterprise infrastructure markets.
The DS100DF410SQE/NOPB belongs to TI's high-speed retimer family designed specifically for 10GbE and multi-gigabit backplane applications, emphasizing low power, adaptive equalization, and ease of integration in space-constrained optical and line card systems.
FAQ
What data rates does the DS100DF410SQE/NOPB support?
The DS100DF410SQE/NOPB supports 10.3125 Gbps for 10GbE and 1.25 Gbps for 1GbE operation. Its CDR locks to these exact rates with typical lock time under 15 ms. While the device is optimized for 10.3125 Gbps, it can operate at 1.25 Gbps by configuring register 0x09 bit 5 and register 0x1E bits [7:5] to bypass CDR functionality. DS100DF410SQE/NOPB does not support intermediate or arbitrary data rates outside this defined range.
Does the DS100DF410SQE/NOPB require an external reference clock?
No, the DS100DF410SQE/NOPB operates in Ref_mode 0 by default and does not require an external reference clock for 10.3125 Gbps operation. The REFCLK_IN pin may be left unconnected. However, Ref_mode 3 - which uses a 25 MHz ±100 ppm external reference - is available to improve jitter transfer performance when system-level phase noise requirements are stringent. DS100DF410SQE/NOPB automatically detects and configures based on register 0x36 bits [5:4].
How is the DS100DF410SQE/NOPB configured during system startup?
The DS100DF410SQE/NOPB supports two configuration modes: SMBus slave mode (EN_SMB = high) for register writes from a host processor, and SMBus master mode (EN_SMB floating) to autonomously load settings from an external EEPROM. In master mode, asserting READ_EN initiates EEPROM read; ALL_DONE goes low upon completion. DS100DF410SQE/NOPB retains all register values across power cycles only if EEPROM programming is used.
What is the role of the LPF_CP_n and LPF_REF_n pins on the DS100DF410SQE/NOPB?
The LPF_CP_n and LPF_REF_n pins (n = 0–3) form dedicated loop filter connections for each channel's CDR PLL. A 22 nF ±10% capacitor must be placed between each LPF_CP_n and LPF_REF_n pair to set the PLL bandwidth (~5 MHz) and ensure stable lock acquisition and jitter rejection. These pins are analog-sensitive and must be routed away from digital switching noise; improper capacitor placement or value directly impacts CDR stability and jitter performance of DS100DF410SQE/NOPB.
Can the DS100DF410SQE/NOPB be used in 1GbE applications?
Yes, the DS100DF410SQE/NOPB supports 1.25 Gbps 1GbE operation by disabling CDR and routing input directly to output via register configuration. Specifically, bit 5 of register 0x09 (override) must be set to 1, and bits [7:5] of register 0x1E (data mux) set to 3'b000. This bypasses CTLE, DFE, and CDR stages, reducing latency and power. DS100DF410SQE/NOPB maintains full pin compatibility and power supply requirements in this mode.
DS100DF410SQE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Ethernet
- Interface:
- SMBus
- Voltage - Supply:
- -
- Supplier Device Package:
- 48-WQFN (7x7)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
DS100DF410SQE/NOPB FAQ
1.How can I place an order for DS100DF410SQE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS100DF410SQE/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 DS100DF410SQE/NOPB reliable?
The price and inventory of DS100DF410SQE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS100DF410SQE/NOPB is usually 5 days.
3.What payment methods are accepted for DS100DF410SQE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS100DF410SQE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS100DF410SQE/NOPB?
DS100DF410SQE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS100DF410SQE/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 DS100DF410SQE/NOPB?
For technical support, including DS100DF410SQE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS100DF410SQE/NOPB requirements.
6.How does Aetrix verify that DS100DF410SQE/NOPB is sourced from the original manufacturer or authorized distributors?
All DS100DF410SQE/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 DS100DF410SQE/NOPB meets industry standards.
7.What is the process for return or replacement of DS100DF410SQE/NOPB?
All DS100DF410SQE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS100DF410SQE/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 DS100DF410SQE/NOPB part is unused and in its original packaging.
Return procedure for DS100DF410SQE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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