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DS80PCI800SQ/NOPB
Texas Instruments
IC REDRIVER PCIE 8CH 54WQFN
7473 Pcs New Original In Stock
Buffer, ReDriver 8 Channel 8Gbps 54-WQFN (10x5.5)
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5.0 / 5.0
- (38 Ratings)
DS80PCI800SQ/NOPB
Product Overview
1330968
DiGi Electronics Part Number
DS80PCI800SQ/NOPB-DGManufacturer
Texas Instruments
DS80PCI800SQ/NOPB
Description
IC REDRIVER PCIE 8CH 54WQFNInventory
7473 Pcs New Original In Stock
Buffer, ReDriver 8 Channel 8Gbps 54-WQFN (10x5.5)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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DS80PCI800SQ/NOPB Technical Specifications
Category
Interface, Signal Buffers, Repeaters, Splitters
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Type
Buffer, ReDriver
Applications
PCIe
Input
CML
Output
CML
Data Rate (Max)
8Gbps
Number of Channels
8
Delay Time
200ps
Signal Conditioning
Input Equalization, Output De-Emphasis
Capacitance - Input
10 pF
Voltage - Supply
2.375V ~ 3.6V
Current - Supply
-
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
54-WFQFN Exposed Pad
Supplier Device Package
54-WQFN (10x5.5)
Base Product Number
DS80PCI800
Datasheet & Documents
Manufacturer Product Page
DS80PCI800SQ/NOPB Specifications
HTML Datasheet
DS80PCI800SQ/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-38934-6
-296-38934-1-DG
2156-DS80PCI800SQ/NOPB
DS80PCI800SQ/NOPB-DG
296-38934-1
TEXTISDS80PCI800SQ/NOPB
296-38934-2
Standard Package
2,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Je suis très content de la constance dans la qualité de leurs produits et de leur ponctualité dans la livraison.
de desembre 02, 2025
L'emballage très sécurisé m'a permis de recevoir mes commandes sans la moindre égratignure.
de desembre 02, 2025
The pricing at DiGi Electronics is really competitive, making it easy to purchase without worry.
de desembre 02, 2025
I've been impressed by their proactive approach to after-sales support, offering guidance even after the transaction.
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Frequently Asked Questions (FAQ)
How does the DS80PCI800SQ/NOPB handle signal integrity challenges in long-reach PCIe Gen3 backplane designs, and what design trade-offs should I consider when using it versus a redriver with integrated retiming?
The DS80PCI800SQ/NOPB is a non-retiming redriver that relies on input equalization and output de-emphasis to compensate for channel loss, making it suitable for short-to-medium reach PCIe Gen3 links (typically up to 20–30 inches of FR4). However, in long-reach backplane applications where cumulative jitter exceeds 0.3 UI, its lack of clock/data recovery (CDR) becomes a critical limitation—unlike retimers such as the TI DS80PCI402 or Microchip VSC8250. You must carefully model your channel using IBIS-AMI simulations and validate eye margins at the receiver. A key trade-off is power and latency: the DS80PCI800SQ/NOPB consumes less power (~54 mW per channel) and adds only 200 ps delay, but offers no jitter cleaning. For systems requiring >30-inch reach or operating in noisy environments, consider migrating to a retimer despite higher BOM cost and complexity.
Can I replace the DS80PCI800SQ/NOPB with the DS80PCI401SQ/NOPB in an 8-channel PCIe Gen3 design, and what risks should I evaluate before doing so?
Direct replacement of the DS80PCI800SQ/NOPB with the DS80PCI401SQ/NOPB is not feasible due to fundamental architectural differences—the DS80PCI401 is a 4-channel redriver with different pinout, package (48-WQFN vs. 54-WQFN), and electrical characteristics. Even if you rewire only four lanes, the DS80PCI401 has lower output drive strength and reduced equalization range, which may cause link training failures in high-loss channels. Additionally, the DS80PCI401 lacks the same level of de-emphasis control, increasing the risk of overshoot/ringing on long traces. If channel count reduction is acceptable, thorough signal integrity validation is required; otherwise, stick with the DS80PCI800SQ/NOPB or consider pin-compatible alternatives like the Renesas UPD720202 (though it’s a retimer, not a redriver).
What layout and thermal considerations are critical when designing a PCB with the DS80PCI800SQ/NOPB in a high-density server application, especially regarding its 54-WQFN exposed pad package?
The DS80PCI800SQ/NOPB’s 54-WQFN package with an exposed thermal pad demands careful PCB layout to ensure both electrical performance and thermal reliability. The exposed pad must be soldered directly to a grounded thermal plane with multiple vias (≥9 vias of 0.3 mm diameter) to dissipate heat and maintain junction temperature below 125°C under full load. Poor thermal management can lead to thermal throttling or accelerated aging. Electrically, maintain strict impedance control (85 Ω differential) on all PCIe traces, minimize via stubs, and place decoupling capacitors (100 nF + 10 µF) within 2 mm of each VDD pin. Avoid routing high-speed signals under the device unless absolutely necessary, as the exposed pad can introduce parasitic capacitance. In high-density server boards, also ensure adequate spacing from adjacent components to prevent reflow shadowing and facilitate rework.
How does the DS80PCI800SQ/NOPB perform in multi-drop or fan-out PCIe topologies, and why might it fail where a switch-based architecture would succeed?
The DS80PCI800SQ/NOPB is designed strictly for point-to-point PCIe links and will likely fail in multi-drop or fan-out configurations due to impedance discontinuities and excessive loading. Each additional stub or branch introduces reflections that degrade signal integrity beyond the redriver’s equalization capability, causing link training errors or reduced throughput. Unlike PCIe switches (e.g., TI PEX8747), which regenerate signals and manage topology natively, the DS80PCI800SQ/NOPB cannot compensate for the cumulative capacitive load (>10 pF per node) or timing skew in branched topologies. If your design requires connecting one root complex to multiple endpoints, use a PCIe switch instead. The redriver should only be used to extend reach between two known-good endpoints in a daisy-chain or backplane extension scenario.
What reliability risks should I assess when deploying the DS80PCI800SQ/NOPB in industrial or automotive edge-computing systems operating near its -40°C to 85°C temperature limits?
While the DS80PCI800SQ/NOPB is rated for -40°C to 85°C, operating near these extremes introduces reliability risks that require mitigation. At high temperatures (>80°C), leakage currents increase, potentially reducing noise margins and causing intermittent link drops—especially in poorly cooled enclosures. At low temperatures (<0°C), PCB contraction can induce mechanical stress on the WQFN solder joints, increasing the risk of cold-joint failures over thermal cycling. Additionally, the MSL-2 rating means the device must be used within 1 year of opening the dry pack; exposure to ambient humidity before reflow can cause popcorning. For industrial or automotive deployments, implement conformal coating, ensure robust thermal design with margin below Tj(max), and follow IPC-7351 guidelines for pad and stencil design. Consider derating supply voltage to 3.0V (instead of 3.6V) at high temps to reduce power dissipation and improve long-term reliability.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
DS80PCI800SQ/NOPB CAD Models
Texas Instruments DS80PCI800SQ/NOPB PCB symbols & footprints
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