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Texas Instruments DS80EP100SD/NOPB
- Part No.:
- DS80EP100SD/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
DS80EP100SD/NOPB.pdf
- Description:
- IC INTERFACE SPECIALIZED 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,359
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Product details
Overview
DS80EP100SD/NOPB from Texas Instruments is a passive, power-free 5–12.5 Gbps differential equalizer for FR4 backplanes and twin-axial cables, featuring 100 Ω differential I/O impedance, 7 dB maximum boost, and symmetric bidirectional operation. It compensates transmission loss in high-speed serial links without requiring power or ground connections, and is deployed in line cards and switch cards for PCIe Gen1/Gen2 and XAUI systems.
For engineers reviewing the DS80EP100SD/NOPB datasheet, DS80EP100SD/NOPB pinout, DS80EP100SD/NOPB application, or DS80EP100SD/NOPB equivalent, key selection criteria include passive operation, 100 Ω differential impedance matching, placement flexibility in the data path, deterministic jitter reduction below 0.20 UIp-p, and compatibility with CML/LV-PECL/LVDS signaling.
Technical Context
The DS80EP100SD/NOPB implements a passive bridged-T network using resistive, capacitive, and inductive elements to provide linear, frequency-dependent attenuation and peaking-acting as a bandpass filter centered near 6.25 GHz. Its response is protocol-agnostic and independent of 8b/10b encoding or scrambling.
It supports full-duplex operation via symmetric I/O structures (IOA+/IOA− and IOB+/IOB−), enabling signal flow in either direction with identical equalization performance. No DC biasing or termination resistors are required beyond the standard 100 Ω differential load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bit Rate Range | 5 to 12.5 Gbps - Supports full-speed operation across PCIe Gen1 (2.5 GT/s), Gen2 (5 GT/s), and XAUI (3.125 GT/s) without retiming or active amplification. |
| Differential Impedance | 100 Ω - Matches standard high-speed differential interconnects (FR4 traces, twin-ax cables), eliminating need for external termination. |
| Equalization Boost | Up to 7 dB at 6.25 GHz - Compensates up to ~20 inches of 6-mil FR4 microstrip or 5 m of 26 AWG twin-ax cable at 10 Gbps. |
| Residual DJ | ≤0.20 UIp-p at 12.5 Gbps - Reduces deterministic jitter induced by channel loss, preserving eye height and timing margin. |
| Supply Requirement | No power or ground required - Enables placement anywhere in the signal path (e.g., mid-channel, on flex, or near connector) without PCB routing constraints. |
| Signal Compatibility | CML, LV-PECL, LVDS - Interoperable with common high-speed logic families without level-shifting or AC-coupling adjustments. |
| Operating Temperature | −40°C to +85°C - Qualified for industrial-grade line card and switch card environments. |
Pinout & Package
DS80EP100SD/NOPB is housed in a 2.2 mm × 2.5 mm, 6-pin WSON (NGF) package with exposed thermal pad (DAP) left unconnected. Pins 2 and 5 are NC; DAP is not electrically connected and must remain floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IOA+ | Differential input/output | High-speed positive terminal of first differential port; interchangeable with IOB+ due to symmetric passive topology. |
| IOA− | Differential input/output | High-speed negative terminal of first differential port; forms 100 Ω differential pair with IOA+. |
| IOB+ | Differential input/output | High-speed positive terminal of second differential port; functionally identical to IOA+ for bidirectional use. |
| IOB− | Differential input/output | High-speed negative terminal of second differential port; forms 100 Ω differential pair with IOB−. |
| Pins 2 & 5 | No connect | Reserved; landing pads must be isolated from all planes-no routing, stitching, or thermal connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Passive equalization | Zero-power operation eliminates supply noise coupling, simplifies layout, and removes thermal drift concerns in dense line cards. |
| Symmetric I/O architecture | Enables identical equalization whether placed on Tx side (line card → switch) or Rx side (switch → line card), reducing BOM variants. |
| Protocol-transparent compensation | Works identically with scrambled or 8b/10b-encoded data-no configuration or training required for PCIe, XAUI, or custom protocols. |
| Linear bandpass response | Peaks near 6.25 GHz to counteract FR4 roll-off while preserving low-frequency common-mode integrity and minimizing overshoot. |
| Small-footprint WSON package | 2.2 mm × 2.5 mm footprint allows placement directly adjacent to connectors or ASIC packages without sacrificing routing space. |
Applications
| PCIe Gen2 Backplane Link | XAUI-Based Switch Fabric |
|---|---|
|
Use Scenario: Extending 5 Gbps PCIe Gen2 signals over 20-inch FR4 backplane traces with >15 dB loss at 2.5 GHz. IC Role / Device Role / Timing Role: Passive channel equalizer placed mid-backplane to restore signal integrity before receiver CDR. Use Value: Increases eye height from 0.2 V to >0.7 V and reduces deterministic jitter from 0.45 UIp-p to ≤0.15 UIp-p, enabling reliable link training. |
Use Scenario: Enabling 3.125 Gbps XAUI lanes across 5-meter twin-axial cable assemblies in modular switch chassis. IC Role / Device Role / Timing Role: Bidirectional equalizer mounted on cable adapter board to compensate both transmit and receive paths. Use Value: Restores 80% eye opening at 100% stress test conditions, eliminating need for active repeaters or retimers in cost-sensitive designs. |
| LVDS-Based High-Speed ADC Interface | Multi-Protocol Line Card Aggregation |
|
Use Scenario: Connecting 10 Gbps LVDS outputs from high-resolution ADCs to FPGA receivers over 12-inch FR4 interposer. IC Role / Device Role / Timing Role: Passive equalizer placed between ADC output and FPGA input to offset trace loss-induced intersymbol interference. Use Value: Maintains <10−12 BER under worst-case process/voltage/temperature corners without adding latency or power consumption. |
Use Scenario: Supporting mixed-rate interfaces (PCIe Gen1/Gen2, SATA, XAUI) on a single carrier board with shared backplane routing. IC Role / Device Role / Timing Role: Universal equalizer used across multiple protocols due to coding-agnostic, frequency-selective response. Use Value: Reduces design complexity by eliminating protocol-specific equalizer variants-single part qualifies for all 5–12.5 Gbps applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar passive equalizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS80EQ100SD/NOPB | Same 6-pin WSON package but includes integrated 100 Ω termination resistors; requires no external termination. | Better suited for point-to-point links where source/load termination is impractical; adds 0.5 mm in height due to resistor integration. | Select DS80EQ100SD/NOPB when board space permits slightly taller profile and termination simplicity outweighs minimal insertion loss trade-off. |
| MAX3801ETE+ | Active equalizer with programmable gain (0–12 dB); requires ±3.3 V supply and consumes 120 mW. | Supports longer channels (>30 in FR4) and adaptive tuning; introduces power noise, latency, and temperature drift. | Choose MAX3801ETE+ only when passive boost is insufficient and system-level power budget and noise tolerance allow active intervention. |
Compared with DS80EQ100SD/NOPB, DS80EP100SD/NOPB offers lower insertion loss and zero power dependency but requires external 100 Ω termination; versus MAX3801ETE+, it avoids supply noise and latency but lacks programmability for marginal channels.
Availability
DS80EP100SD/NOPB is available at Aetrix Electronics and suitable for PCIe Gen2 backplanes, XAUI switch fabrics, high-speed ADC interfaces, and multi-protocol line cards requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for DS80EP100SD/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, with decades of expertise in signal integrity and interconnect optimization.
The DS80EP100SD/NOPB belongs to TI's Power-Saver Equalizer family-designed specifically for passive, zero-power compensation of lossy backplane and cable channels in telecom, datacom, and test equipment.
FAQ
Does DS80EP100SD/NOPB require any power supply or biasing?
No, DS80EP100SD/NOPB is a fully passive device composed of resistive, capacitive, and inductive elements. It operates without power, ground, or DC bias-making it ideal for placement anywhere in the signal path, including on unpowered daughterboards or flex cables. The DS80EP100SD/NOPB draws zero quiescent current and introduces no supply noise.
Can DS80EP100SD/NOPB be used bidirectionally in the same design?
Yes, DS80EP100SD/NOPB features symmetric I/O structures (IOA+/IOA− and IOB+/IOB−), allowing identical equalization performance regardless of signal direction. In a line card ↔ switch card link, the same DS80EP100SD/NOPB can equalize both Tx and Rx paths without modification-reducing inventory and layout complexity.
What is the maximum supported trace length for DS80EP100SD/NOPB at 10 Gbps?
At 10 Gbps, DS80EP100SD/NOPB extends usable reach to 30 inches of 6-mil FR4 microstrip (per Figure 8), restoring eye height above 0.5 V and limiting residual deterministic jitter to ≤0.20 UIp-p. Performance is validated with PRBS-7 patterns and assumes proper 100 Ω differential impedance control and minimal via usage-critical for maintaining DS80EP100SD/NOPB effectiveness.
Is DS80EP100SD/NOPB compatible with LVDS signaling?
Yes, DS80EP100SD/NOPB explicitly supports LVDS, CML, and LV-PECL signaling per its datasheet. Its 100 Ω differential input/output impedance matches standard LVDS drivers and receivers, and its linear, frequency-selective response preserves LVDS common-mode stability while boosting high-frequency content lost in interconnects.
How does DS80EP100SD/NOPB differ from active equalizers like DS80EQ100SD/NOPB?
DS80EP100SD/NOPB is passive and requires no power, whereas DS80EQ100SD/NOPB integrates 100 Ω termination resistors and delivers identical equalization with simplified layout. DS80EP100SD/NOPB has lower insertion loss and zero power dependency; DS80EQ100SD/NOPB eliminates external termination but adds slight height and fixed resistive loading-both are drop-in compatible in WSON NGF packages.
DS80EP100SD/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Displays
- Interface:
- Coax Cable and Female Connector
- Voltage - Supply:
- -
- Supplier Device Package:
- 6-WSON (2.2x2.5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
DS80EP100SD/NOPB FAQ
1.How can I place an order for DS80EP100SD/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS80EP100SD/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 DS80EP100SD/NOPB reliable?
The price and inventory of DS80EP100SD/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS80EP100SD/NOPB is usually 5 days.
3.What payment methods are accepted for DS80EP100SD/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS80EP100SD/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS80EP100SD/NOPB?
DS80EP100SD/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS80EP100SD/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 DS80EP100SD/NOPB?
For technical support, including DS80EP100SD/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS80EP100SD/NOPB requirements.
6.How does Aetrix verify that DS80EP100SD/NOPB is sourced from the original manufacturer or authorized distributors?
All DS80EP100SD/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 DS80EP100SD/NOPB meets industry standards.
7.What is the process for return or replacement of DS80EP100SD/NOPB?
All DS80EP100SD/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS80EP100SD/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 DS80EP100SD/NOPB part is unused and in its original packaging.
Return procedure for DS80EP100SD/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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