DS160PR410RNQT - 4-Ch PCIe Gen-4 Linear Redriver, 25 Gbps, 40-WQFN | TI
MPN: DS160PR410RNQT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.87 | $7.87 |
| 10 | $7.18 | $71.80 |
| 100 | $5.95 | $595.00 |
| 500 | $4.92 | $2,460.00 |
| 1,000 | $4.2 | $4,200.00 |
DS160PR410RNQT Overview
A linear redriver (also called a linear repeater or signal conditioner) is a protocol-agnostic high-speed interface IC placed between a transmitter and a receiver to restore signal amplitude and edge rate after channel loss. It sits in the signal-path hierarchy between the physical medium (PCB traces, connectors, cables) and the PHY/SerDes, complementing retimers (which include a CDR and re-clock) by offering lower latency and lower power at the cost of no jitter cleaning.
Key features include automatic receiver detection for PCIe use cases, programmable CTLE equalization up to 18 dB at 8 GHz to extend channel reach, integrated termination, low additive jitter, and per-channel equalizer adjustment through pin-strap or SMBus/I2C control. The device supports AC-coupled transmitter common-mode voltage, low stand-by current, and an operating temperature range of -40 C to +85 C.
The DS160PR410 uses a continuous-time linear equalizer architecture on each receive path to compensate for frequency-dependent loss from FR4 PCB traces, long cables, and connector crosstalk. Because the redriver is linear (not a retimer), the part adds minimal latency (typically <100 ps per channel) and preserves TX de-emphasis / RX CTLE training handshakes, allowing seamless insertion in PCIe link training without protocol glue logic.
Typical applications include server and workstation motherboards (CPU-to-PCIe slot signal conditioning), PCIe riser cards, external PCIe enclosures, storage controllers (NVMe SSD backplanes), accelerator cards (GPU/AI PCIe Gen-4 add-in cards), and embedded platforms that need loss compensation across long PCB routes or backplanes.
When laying out a board, place the redriver as close as possible to the lossy element (connector or long trace) and provide a continuous reference-plane ground beneath the WQFN-40 exposed pad for both thermal dissipation and return-path integrity. Decouple each VCC pin with a 0.1 uF X7R cap and a 4.7 uF bulk capacitor to keep the internal CTLE bias network stable.
Drop-in alternatives for DS160PR410RNQT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DS160PR410RNQT (same form factor and footprint) — differing in CTLE Boost, Control Interface, Maximum Data Rate, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DS160PR410RNQR
✅ Drop-In✓ In Stock
$5.2 / Unit
View Datasheet →DS160PR410RNQRG4
✅ Drop-In📋 Reference alternative (not in catalog)
DS160PR412RNQR
✅ Drop-In📋 Reference alternative (not in catalog)
DS160PR421
✅ Drop-In📋 Reference alternative (not in catalog)
DS160PR410RNQT Specifications
| Function | Linear Repeater / Redriver (4-channel) |
| Supported Protocols | PCIe Gen 1.0/2.0/3.0/4.0, UPI 2.0, protocol-agnostic up to 25 Gbps |
| Number of Channels | 4 |
| Maximum Data Rate | 25 Gbps (NRZ) |
| CTLE Boost | Up to 18 dB at 8 GHz (programmable) |
| Receiver Detection | Automatic (PCIe use cases) |
| Output Type | Linear, AC-coupled |
| Control Interface | Pin-strap and SMBus / I2C |
| Package | 40-pin WQFN (RNQ) 6x4 mm with exposed thermal pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C |
| RoHS Status | Compliant |
DS160PR410RNQT Pin Configuration
| Pin 1 | RX1P — Differential receive channel 1, positive |
| Pin 2 | RX1N — Differential receive channel 1, negative |
| Pin 3 | VDD — Supply voltage (1.8 V typical) |
| Pin 4 | TX1P — Differential transmit channel 1, positive |
| Pin 5 | TX1N — Differential transmit channel 1, negative |
| Pin 6 | GND — Ground |
| Pin 7 | RX2P — Differential receive channel 2, positive |
| Pin 8 | RX2N — Differential receive channel 2, negative |
| Pin 9 | VDD — Supply voltage (1.8 V typical) |
| Pin 10 | TX2P — Differential transmit channel 2, positive |
| Pin 11 | TX2N — Differential transmit channel 2, negative |
| Pin 12 | GND — Ground |
| Pin 13 | RX3P — Differential receive channel 3, positive |
| Pin 14 | RX3N — Differential receive channel 3, negative |
| Pin 15 | VDD — Supply voltage (1.8 V typical) |
| Pin 16 | TX3P — Differential transmit channel 3, positive |
| Pin 17 | TX3N — Differential transmit channel 3, negative |
| Pin 18 | GND — Ground |
| Pin 19 | RX4P — Differential receive channel 4, positive |
| Pin 20 | RX4N — Differential receive channel 4, negative |
| Pin 21 | VDD — Supply voltage (1.8 V typical) |
| Pin 22 | TX4P — Differential transmit channel 4, positive |
| Pin 23 | TX4N — Differential transmit channel 4, negative |
| Pin 24 | GND — Ground |
| Pin 25 | SCL — SMBus / I2C clock |
| Pin 26 | SDA — SMBus / I2C data |
| Pin 27 | ADDR — SMBus address selection |
| Pin 28 | EN — Device enable, active high |
| Pin 29 | MODE — Pin-strap / SMBus mode select |
| Pin 30 | EQ0 — CTLE boost setting bit 0 (pin-strap) |
| Pin 31 | EQ1 — CTLE boost setting bit 1 (pin-strap) |
| Pin 32 | EQ2 — CTLE boost setting bit 2 (pin-strap) |
| Pin 33 | RATE — Data-rate / PCIe generation select |
| Pin 34 | LOS — Loss-of-signal indicator output |
| Pin 35 | PRBSEN — PRBS pattern generator enable |
| Pin 36 | RESET — Hardware reset, active low |
| Pin 37 | VDD — Supply voltage (1.8 V typical) |
| Pin 38 | GND — Ground |
| Pin 39 | NC — Not connected (per datasheet) |
| Pin 40 | NC — Not connected (per datasheet) |
Typical Applications
DS160PR410RNQT is suitable for 6 applications: Server / Workstation PCIe Gen 4 Riser Card, NVMe SSD Backplane / Hot-Swap Storage, GPU / AI Accelerator PCIe Gen 4 Add-In Card, External PCIe Enclosure / Cabling Reach Extender, Industrial Embedded Backplane / Factory Automation, Test Equipment / Protocol Analyzer Front-End.
Server / Workstation PCIe Gen 4 Riser Card
The DS160PR410RNQT's 4-channel linear redriver architecture is ideal for server and workstation PCIe Gen 4 riser cards where the CPU-to-slot path exceeds the native FR4 loss budget. With 18 dB CTLE boost at 8 GHz the part cleanly recovers 16 Gbps PCIe Gen 4 signals across a 12-18 inch riser trace plus two high-speed connector crossings. Its <100 ps per-channel latency preserves PCIe link-training handshakes and avoids breaking TCx or FC protocol timing. Place the redriver adjacent to the riser connector with a continuous ground reference and AC-coupling caps on each lane.
Recommended
NVMe SSD Backplane / Hot-Swap Storage
In NVMe SSD backplanes and hot-swap storage enclosures the DS160PR410RNQT compensates for the high-frequency loss introduced by hot-swap connectors, mid-plane transitions, and long traces to multiple drive bays. Its automatic receiver detection simplifies hot-plug insertion because the redriver only powers its CTLE when a valid PCIe transmitter is sensed, avoiding back-driving into an empty slot. Four channels can equalize one PCIe x4 SSD port or multiple x1 SATA/SAS-equivalent paths at 8 Gbps / 16 Gbps.
Recommended
GPU / AI Accelerator PCIe Gen 4 Add-In Card
The DS160PR410RNQT is well-suited to GPU and AI accelerator PCIe Gen 4 add-in cards where signal integrity across the gold-finger edge connector and 5+ inch of FR4 is critical. Its protocol-agnostic linear equalization works with any PCIe-compliant training sequence, so it does not interfere with TCx retimer negotiation. The 25 Gbps headroom also lets the same redriver support future migration to PCIe Gen 5 board designs at reduced link width. The WQFN-40 footprint keeps the BOM area minimal.
Recommended
External PCIe Enclosure / Cabling Reach Extender
For external PCIe enclosures that use high-speed cabled PCIe, the DS160PR410RNQT sits at the board edge of both the host and device sides to compensate for the cable's insertion loss. Its 25 Gbps support enables PCIe Gen 4 over copper cables up to several meters, providing a lower-latency alternative to retimers. Per-pin CTLE programming lets engineers tune the boost to the exact cable length in production, and SMBus access enables host-controlled link diagnostics.
Recommended
Industrial Embedded Backplane / Factory Automation
In industrial embedded backplanes and factory automation PCs the DS160PR410RNQT compensates for signal loss across long backplane traces, multiple connectors, and harsh-environment cabling. Its -40 C to +85 C industrial temperature rating and linear (low-latency) operation suit deterministic control loops that cannot tolerate retimer-induced nanoseconds of jitter. The exposed thermal pad keeps junction temperature under control in sealed fan-less enclosures.
Recommended
Test Equipment / Protocol Analyzer Front-End
The DS160PR410RNQT functions as a low-latency front-end conditioner in PCIe protocol analyzers, compliance load boards, and BERT test fixtures. Its linear-through characteristic preserves the eye diagram with minimal additive jitter, allowing accurate Tx/Rx characterization. Pin-strap mode lets test engineers change CTLE settings per board revision without firmware updates, while SMBus mode enables automated production test of boost settings via a test controller.
Recommended
Recommended Products Summary
Engineering reference data for DS160PR410RNQT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DS160PR410RNQR | DS160PR410RNQRG4 | DS160PR412RNQR | DS160PR421 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 40-pin WQFN (RNQ) 6x4 mm | 40-pin WQFN (RNQ) 6x4 mm - same | 40-pin WQFN (RNQ) 6x4 mm - same | 40-pin WQFN (RNQ) 6x4 mm - same | 40-pin WQFN (RNQ) 6x4 mm - same |
| Maximum Data Rate | 25 Gbps (PCIe Gen 4) | 25 Gbps (PCIe Gen 4) | 25 Gbps (PCIe Gen 4) | 32 Gbps NRZ / 64 Gbps PAM4 (PCIe Gen 5) | 32 Gbps NRZ / 64 Gbps PAM4 (PCIe Gen 5) |
| PCIe Generation Support | Gen 1 / 2 / 3 / 4 | Gen 1 / 2 / 3 / 4 | Gen 1 / 2 / 3 / 4 | Gen 1 / 2 / 3 / 4 / 5 | Gen 1 / 2 / 3 / 4 / 5 |
| Number of Channels | 4 | 4 | 4 | 4 | 4 |
| CTLE Boost at 8 GHz | Up to 18 dB | Up to 18 dB | Up to 18 dB | Up to 18 dB at 16 GHz (Gen 5 profile) | Up to 18 dB at 16 GHz |
| Architecture | Linear redriver | Linear redriver | Linear redriver | Linear redriver | Linear redriver + IEEE 1588 PTP |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- Quad-channel 25 Gbps in a compact 6x4 mm WQFN (vs DS160PR412RNQR)
- Protocol-agnostic with PCIe-aware auto receiver detect (vs Generic CTLE repeaters)
- Programmable CTLE with up to 18 dB boost at 8 GHz (vs DS160PR421)
Design Notes
Place the DS160PR410RNQT as close as practical to the lossy element (high-speed connector, cable exit, or long trace break) to maximize the channel budget recovered. Maintain a continuous reference ground plane under the WQFN-40 exposed pad to preserve the high-speed return path; stitching vias should be placed at <= 200 mil spacing around the pad perimeter. Route the four differential pairs with 85 ohm differential impedance and intra-pair length matching within 5 mil.
Decouple every VDD pin with a 0.1 uF X7R ceramic capacitor placed within 100 mil of the pin, plus a 4.7 uF bulk capacitor on the same supply rail. The CTLE bias network is sensitive to supply noise; failure to provide adequate decoupling will manifest as eye-height degradation and link-training retries at Gen 4 data rates.
The 40-pin WQFN (RNQ) 6x4 mm package dissipates heat primarily through the exposed pad (EP). Solder the EP to a continuous ground copper pour of at least 1 square inch for a 1 oz copper board. Estimated: at typical operating current the junction-to-ambient rise is well under 30 C with proper EP soldering, but rises sharply (Estimated: 60 C+ rise) if the EP is unsoldered or starved of copper.
Program the CTLE boost conservatively: excessive EQ will over-shoot and increase ISI, while insufficient EQ will leave residual loss. For PCIe Gen 4 routes through 8-12 inches of FR4 plus one connector, start with the mid-range boost setting (typically 9-12 dB at 8 GHz) and tune with the device's internal eye-monitor or a BERT sweep. Pin-strap EQ0/EQ1/EQ2 bits select preset boost levels; SMBus mode allows per-channel fine tuning.
Do not omit AC-coupling capacitors on each transmit output; PCIe and most high-speed protocols require external AC coupling. Avoid routing the SMBus lines (SCL/SDA) near the high-speed differential pairs - keep at least 5x the dielectric distance to prevent coupling into the SMBus state machine. When using pin-strap mode, leave the MODE pin tied to a defined logic level; floating the pin can cause the device to enter an indeterminate state on power-up.
Compliance Information
RoHS compliant and lead-free per TI product page. Not AEC-Q100 qualified - this part targets commercial/industrial markets. For automotive platforms, select a different TI redriver from the automotive interface portfolio.
