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Texas Instruments DS25BR100TSD/NOPB
- Part No.:
- DS25BR100TSD/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
DS25BR100TSD/NOPB.pdf
- Description:
- IC REDRIVER LVDS 1CH 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,704
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Product details
Overview
DS25BR100TSD/NOPB from Texas Instruments is a single-channel 3.125 Gbps LVDS buffer/repeater with integrated transmit pre-emphasis (PE) and receive equalization (EQ), designed for signal integrity restoration in lossy FR-4 backplanes and balanced metallic cables. It features internal 100 Ω LVDS input/output termination, operates from 3.0–3.6 V, supports CML/LVPECL/LVDS inputs, and delivers <0.14 UIP-P total jitter at 3.125 Gbps in PRBS-23 NRZ mode.
For engineers reviewing the DS25BR100TSD/NOPB datasheet, DS25BR100TSD/NOPB pinout, DS25BR100TSD/NOPB application, or DS25BR100TSD/NOPB equivalent, key selection criteria include its dual-stage signal conditioning (PE + EQ), flow-through WSON-8 pinout, on-chip 100 Ω termination, ESD-hardened LVDS I/O (7 kV HBM), and compatibility with ASIC/FPGA interconnects requiring low-jitter, high-noise-immunity buffering over lossy media.
Technical Context
The DS25BR100TSD/NOPB implements a fully differential architecture with independent PE and EQ control pins enabling four discrete signal-conditioning states (Off/Low/Medium combinations). Its receiver accepts wide common-mode inputs (0.05 V to VCC − 0.05 V), supporting direct DC-coupling to LVDS, CML, and LVPECL sources without level-shifting circuitry.
Internally terminated 100 Ω differential paths minimize return loss and insertion loss while eliminating external resistors - reducing BOM count and PCB area. Propagation delay is tightly matched (tSKD1 ≤ 100 ps), and supply current remains stable across frequency (35–43 mA typical), making it suitable for deterministic timing paths in high-speed serial links.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 3.125 Gbps - supports PCIe Gen1, SATA I, and other 3.125 Gbps NRZ protocols over lossy channels |
| Differential Jitter (TJ) | 0.14 UIP-P @ 3.125 Gbps PRBS-23 - ensures robust eye opening after channel loss compensation |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails and tolerant of ±10% variation |
| Input Termination | Integrated 100 Ω - eliminates need for external resistors, reduces layout complexity and board space |
| ESD Rating | 7 kV HBM on LVDS I/O - protects adjacent components during handling and system integration |
| Operating Temp | −40°C to +85°C - qualified for industrial temperature environments without derating |
| Package | WSON-8 (NGQ0008A), 3 mm × 3 mm - compact footprint with exposed thermal pad for thermal management |
Pinout & Package
DS25BR100TSD/NOPB uses the NGQ0008A 3 mm × 3 mm WSON-8 package with an exposed die attach pad (DAP) for thermal and mechanical stability. The flow-through pinout minimizes trace length and crosstalk in high-speed layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EQ) | Equalization select input | Binary control: EQ = 0 → Low EQ (~4 dB); EQ = 1 → Medium EQ (~8 dB) at 1.56 GHz |
| 2 (IN+) | Non-inverting LVDS input | Differential input pair with internal 100 Ω termination; accepts LVDS/CML/LVPECL levels |
| 3 (IN−) | Inverting LVDS input | Complementary to IN+; forms internally terminated 100 Ω differential receiver path |
| 4 (PE) | Pre-emphasis select input | Binary control: PE = 0 → Off; PE = 1 → Medium PE (~6 dB) at 1.56 GHz |
| 5 (NC) | No-connect | Unbonded pin; must be left floating or grounded per layout best practices |
| 6 (OUT−) | Inverting LVDS output | LVDS-compliant output with 250–450 mV differential swing and 100 Ω output impedance |
| 7 (OUT+) | Non-inverting LVDS output | Complementary to OUT−; enables flow-through routing with minimal layer transitions |
| 8 (VCC) | Power supply | 3.0–3.6 V supply; requires local 0.1 µF ceramic decoupling adjacent to pin |
| DAP (GND) | Ground pad | Exposed thermal pad - must be soldered to solid ground plane for thermal dissipation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Transmit Pre-emphasis | Two-level (Off/Medium ~6 dB) - compensates high-frequency loss in long FR-4 traces or cables |
| Receive Equalization | Two-level (Low/Medium ~4–8 dB) - reduces ISI-induced jitter from channel attenuation and dispersion |
| On-chip 100 Ω Termination | Applied to both input and output differential pairs - eliminates four external resistors and saves ≥2.5 mm² PCB area |
| Wide Input Common-Mode Range | 0.05 V to VCC − 0.05 V - enables direct DC coupling to LVPECL (VCM ≈ 1.3 V), CML (VCM ≈ 0.2 V), and LVDS (VCM ≈ 1.2 V) |
| Low Power Operation | 35–43 mA supply current - maintains signal integrity at 3.125 Gbps while minimizing heat generation in dense layouts |
Applications
| Backplane Signal Re-timing | Metallic Cable Equalization |
|---|---|
Use Scenario: Restoring signal integrity in multi-slot 3U/6U VME or CompactPCI backplanes with >30-inch FR-4 striplines exhibiting >9 dB loss at 1.5 GHz. IC Role / Device Role / Timing Role: LVDS repeater with simultaneous PE and EQ - placed mid-channel to reduce accumulated jitter and open closed eyes. Use Value: Enables reliable 3.125 Gbps operation over legacy backplanes without redesigning stackup or adding active connectors. | Use Scenario: Driving 15–30 meter shielded twisted-pair (STP) cables between FPGA-based video capture modules and display controllers in broadcast equipment. IC Role / Device Role / Timing Role: Bidirectional LVDS buffer with adaptive equalization - compensates cable-induced frequency-dependent attenuation and phase distortion. Use Value: Maintains <0.14 UIP-P total jitter at endpoint receivers, eliminating need for custom equalized transceivers or retimers. |
| FPGA-to-FPGA Interconnect | ASIC Clock/Data Distribution |
Use Scenario: High-speed data handoff between Xilinx Kintex-7 and Intel Arria 10 FPGAs across a 10-layer PCB with 20-inch differential pairs. IC Role / Device Role / Timing Role: Low-jitter LVDS repeater - inserted between transmit and receive banks to isolate noise and retime signals across voltage domains. Use Value: Reduces deterministic jitter by up to 20 ps compared to direct routing, improving setup/hold margins for source-synchronous interfaces. | Use Scenario: Distributing 156.25 MHz reference clocks and parallel data lanes from a network processor ASIC to multiple SerDes PHYs in telecom line cards. IC Role / Device Role / Timing Role: LVDS fanout buffer with pre-emphasis - drives multiple loads while maintaining edge monotonicity and jitter budget compliance. Use Value: Delivers sub-1 ps RMS random jitter and <100 ps pulse skew, meeting SONET OC-48 and CPRI v6 clock distribution requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVDS buffer/repeater applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS25BR101TSD/NOPB | Eliminates internal 100 Ω input termination; requires external 100 Ω resistor placement within 200 mils of pins | Better suited for multi-drop topologies or custom termination networks where input impedance must be adjusted | Select DS25BR101TSD/NOPB when board layout allows precise external termination placement and flexibility in input biasing is required |
| DS25BR120TSD/NOPB | Four-level transmit pre-emphasis only; no receive equalization; same 3.125 Gbps rate and WSON-8 package | Optimized for driver-side compensation only - used when channel loss is dominated by transmitter-to-medium interface | Choose DS25BR120TSD/NOPB when equalization is handled upstream or downstream, and maximum PE control granularity is needed |
Compared with DS25BR100TSD/NOPB, DS25BR101TSD/NOPB trades integrated input termination for design flexibility in multi-drop systems, while DS25BR120TSD/NOPB provides higher-resolution pre-emphasis but lacks equalization - making DS25BR100TSD/NOPB the only option offering balanced, dual-stage signal conditioning in a single WSON-8 device.
Availability
DS25BR100TSD/NOPB is available at Aetrix Electronics and suitable for industrial backplane interconnects, broadcast video cabling, FPGA-to-FPGA high-speed links, and ASIC clock/data distribution requiring stable component supply and guaranteed long-term availability.
Supply support for DS25BR100TSD/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 over 50 years of innovation in signal integrity and timing products.
The DS25BR100TSD/NOPB belongs to TI's high-speed LVDS repeater family, engineered specifically for restoring degraded signals in lossy PCB traces and metallic cables used in industrial, telecom, and broadcast infrastructure.
FAQ
What is the maximum supported data rate for DS25BR100TSD/NOPB?
The DS25BR100TSD/NOPB is specified for operation up to 3.125 Gbps with PRBS-23 NRZ patterns. At this rate, total jitter remains ≤0.14 UIP-P when both PE and EQ are enabled, enabling compliance with PCIe Gen1 and SATA I standards over lossy channels.
Does DS25BR100TSD/NOPB require external termination resistors?
No - DS25BR100TSD/NOPB integrates 100 Ω termination on both its LVDS input (IN+/IN−) and output (OUT+/OUT−) differential pairs. This eliminates the need for four external 100 Ω resistors, reducing component count, PCB area, and potential stub effects in high-speed layouts.
How does the PE and EQ control work on DS25BR100TSD/NOPB?
DS25BR100TSD/NOPB uses two LVCMOS-compatible control pins: PE (pin 4) and EQ (pin 1). Each accepts 0 or 1 to select Off/Medium pre-emphasis (~6 dB) and Low/Medium equalization (~4–8 dB), resulting in four distinct signal-conditioning configurations optimized for varying channel loss profiles.
Can DS25BR100TSD/NOPB interface directly with CML or LVPECL drivers?
Yes - DS25BR100TSD/NOPB accepts input common-mode voltages from 0.05 V to VCC − 0.05 V, covering typical CML (≈0.2 V), LVPECL (≈1.3 V), and LVDS (≈1.2 V) levels. Its wide input range enables direct DC-coupled interfacing without level shifters or AC-coupling capacitors.
What package type and thermal considerations apply to DS25BR100TSD/NOPB?
DS25BR100TSD/NOPB uses the NGQ0008A WSON-8 package (3 mm × 3 mm, 0.8 mm max height) with an exposed thermal pad (DAP). The DAP must be soldered to a solid PCB ground plane to achieve θJA = 60.0°C/W and ensure reliable operation at full speed across −40°C to +85°C.
DS25BR100TSD/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Buffer, ReDriver
- Applications:
- LVDS
- Input:
- CML, LVDS, LVPECL
- Output:
- LVDS
- Data Rate (Max):
- 3.125Gbps
- Number of Channels:
- 1
- Delay Time:
- 350ps
- Signal Conditioning:
- Input Equalization, Output Pre-Emphasis
- Capacitance - Input:
- 1.7 pF
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- 35mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (3x3)
DS25BR100TSD/NOPB FAQ
1.How can I place an order for DS25BR100TSD/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS25BR100TSD/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 DS25BR100TSD/NOPB reliable?
The price and inventory of DS25BR100TSD/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS25BR100TSD/NOPB is usually 5 days.
3.What payment methods are accepted for DS25BR100TSD/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS25BR100TSD/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS25BR100TSD/NOPB?
DS25BR100TSD/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS25BR100TSD/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 DS25BR100TSD/NOPB?
For technical support, including DS25BR100TSD/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS25BR100TSD/NOPB requirements.
6.How does Aetrix verify that DS25BR100TSD/NOPB is sourced from the original manufacturer or authorized distributors?
All DS25BR100TSD/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 DS25BR100TSD/NOPB meets industry standards.
7.What is the process for return or replacement of DS25BR100TSD/NOPB?
All DS25BR100TSD/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS25BR100TSD/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 DS25BR100TSD/NOPB part is unused and in its original packaging.
Return procedure for DS25BR100TSD/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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