PS7201 - PCIe 5.0 16-Lane Retimer IC | Phison Electronics
料号： PS7201 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $95 | $95.00 |
| 10 | $88 | $880.00 |
| 100 | $78.5 | $7,850.00 |
| 500 | $71 | $35,500.00 |
| 1,000 | $65 | $65,000.00 |
PS7201 概述
A Retimer IC is a mixed-signal analog/digital device that is protocol-aware. Unlike a simple redriver (analog amplifier), a retimer fully recovers the serial data, extracts the embedded reference clock from the incoming stream, and retransmits a fresh copy of the data using that clean clock. Functionally, retimers sit between a linear regulator and a redriver in the PCIe signal-conditioning hierarchy: they regenerate bits and reset the jitter budget, whereas redrivers only boost amplitude. The PS7201 belongs to the broader family of signal-conditioning ICs in the data-center interconnect ecosystem.
Key features highlighted by Phison and PCI-SIG include 16 bidirectional lanes supporting PCIe 5.0 (32 GT/s) and CXL 2.0, advanced equalization with adaptive CTLE and multi-tap DFE, integrated diagnostics with eye-margin monitoring, low-latency modes for performance-sensitive topologies, and a reference clock output. The IC supports common PCIe form factors including x16 and bifurcated x8/x8 topologies, and is engineered for system-level integration with upstream CPUs, PCIe switches, NVMe controllers, and CXL memory devices.
Typical applications include PCIe 5.0 server motherboards, AI accelerator backplanes, NVMe SSD riser cards, CXL memory expansion modules, high-speed add-in cards, and long-trace topologies where raw channel loss exceeds the native PCIe 5.0 budget. Reference designs from InWin and Guava Systems confirm deployment in production retimer cards (e.g., IW-RT04-02) using MCIO x8 connectors, with typical board power around 15 W under full Gen5 x16 load.
When designing with this device, pay close attention to PCB stack-up, reference-clock routing, and thermal management under sustained 32 GT/s traffic. The PS7201 is intended for experienced PCIe system engineers; reference schematics and layout guidelines are available from Phison under NDA.
直接替换替代料： PS7201 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
PS7201-32GT
✅ 直接替换📋 参考替代料（不在目录中）
PS7201 Retimer Card
✅ 直接替换📋 参考替代料（不在目录中）
PS7201
✅ 直接替换✓ 有现货
$65 / 个
查看数据手册 →Astera Labs Aries PT5161L
✅ 直接替换📋 参考替代料（不在目录中）
Microchip M88RT51632
✅ 直接替换📋 参考替代料（不在目录中）
PS7201 规格参数
| Product Type | PCIe 5.0 / CXL Retimer IC |
| Manufacturer | Phison Electronics Corp. |
| PCIe Generation | PCIe 5.0 |
| CXL Support | CXL 2.0 compatible |
| Maximum Data Rate per Lane | 32 Gbps (PCIe 5.0 / CXL 2.0) |
| Number of Lanes | 16 bidirectional lanes |
| Lane Bifurcation Support | x16, x8/x8, x4/x4/x4/x4 (typical) |
| Signal Conditioning | Adaptive CTLE + multi-tap DFE |
| Reference Clock | Reference clock output supported |
| Diagnostic Features | Eye-margin monitoring, link health diagnostics |
| Low-Latency Mode | Yes |
| Topology Support | Motherboards, backplanes, riser cards, add-in cards, long cables |
| Typical Board Power (full Gen5 x16) | 15 W (reference design figure) |
| Form Factor Card Example | InWin IW-RT04-02 (MCIO x8 connectors x2) |
| PCI-SIG Listed | Yes |
PS7201 standard 引脚配置指南
PS7201（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： PS7201.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PS7201 适用于 6 应用s: PCIe 5.0 Server Motherboards, AI Accelerator Backplanes, NVMe SSD Riser Cards, CXL Memory Expansion Modules, GPU-to-GPU NVLink-Bridge Topologies, Long-Trace PCIe 5.0 Add-in Cards.
PCIe 5.0 Server Motherboards
The PS7201's 16 bidirectional lanes at 32 GT/s make it the natural fit for PCIe 5.0 server motherboard topologies where a CPU root complex drives multi-slot backplanes through lossy PCB traces. Adaptive CTLE plus multi-tap DFE equalization recovers the 32 GT/s eye even on FR-4 stacks with 22 dB+ insertion loss at 16 GHz. Compared with a redriver-only solution, the retimer's CDR resets the jitter budget at each slot, enabling two-connector topologies that would otherwise fail PCI-SIG Gen5 compliance. Typical board power around 15 W in a full x16 deployment is manageable with a moderate copper pour and 1.5 m/s airflow.
推荐
AI Accelerator Backplanes
AI training clusters push hundreds of gigabits per second between GPU/NIC trays, and the PS7201's PCIe 5.0 x16 capability preserves Gen5 bandwidth across long backplane connectors. Its adaptive equalizer compensates for the high loss of standard high-pin-count connectors plus 30+ inches of trace, while the embedded diagnostic mode continuously monitors eye margin per lane for predictive maintenance. Compared with passive retiming-through-switch approaches, the PS7201 also functions as a stand-alone retimer between ASIC lanes, simplifying PCB placement. Deployment patterns from Phison show the device near each connector zone, fed with a low-jitter 100 MHz reference.
推荐
NVMe SSD Riser Cards
Enterprise NVMe SSDs in PCIe 5.0 form factors require Gen5 x4 or x8 riser cards to deliver 14 GB/s+ per device, and the PS7201's low-latency mode is tuned for this exact topology. With 16 lanes total, a single retimer can fan out to four x4 NVMe drives via bifurcation, removing the need for a separate PCIe switch. Each lane's eye-margin diagnostic gives the BMC early warning of a degrading SSD slot, an important consideration in hyperscale datacenters. PS7201 power dissipation scales predictably with active lanes, so the riser can be designed to draw roughly 9-12 W at typical four-drive loads.
推荐
CXL Memory Expansion Modules
CXL 2.0 over PCIe 5.0 enables memory expansion and pooling, and the PS7201's protocol-aware retiming helps maintain compliance on Type-3 device channels that fan out from a host's CXL root. The device's reference-clock output simplifies fan-out where multiple CXL devices share a clean clock domain. Compared with redrivers, retimers like the PS7201 preserve CXL's flit-mode handshakes across lossy channels. System-level validation in CXL 2.0 memory pools is one of the most demanding use cases, so retimer diagnostics must report eye margin per lane in real time to the management plane.
推荐
GPU-to-GPU NVLink-Bridge Topologies
When GPUs in a single server communicate over a PCIe 5.0 bridge (e.g., for direct GPU-to-GPU RDMA), the PS7201's low-latency path adds only a few nanoseconds of round-trip time while still recovering the 32 GT/s eye. Across the short interposer trace plus the bridge connector, the adaptive CTLE removes ISI from the dense pin fields. The retimer is transparent to PCIe TLP routing, which preserves GPU-to-GPU peer transactions without driver changes. Reference design patterns show the device mounted on the bracket side of the bridge card with thermal coupling to the chassis frame.
推荐
Long-Trace PCIe 5.0 Add-in Cards
Add-in cards such as DPUs, smart NICs, and DSP accelerators often require full-height, full-length cards with traces that exceed PCIe 5.0 loss budgets, and the PS7201 ensures compliance on these spans. Mounted near the golden finger edge connector, the retimer boosts the upstream path back toward the slot and the downstream path back toward the ASIC. Each lane's adaptive DFE is tuned at link-up and re-tunes on demand if temperature or vibration disturbs the channel. Compared with a host-side redriver, this edge-card placement also keeps high-speed analog loops short and routes are simpler.
推荐
推荐产品汇总
工程参考数据： PS7201 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PS7201-32GT | PS7201 Retimer Card (IW-RT04-02) | Astera Labs Aries PT5161L | Microchip M88RT51632 |
|---|---|---|---|---|---|
| Brand | PHISON Electronics Corp. | PHISON Electronics Corp. | PHISON Electronics Corp. | Astera Labs | Microchip Technology |
| Package | Phison BGA reference design | Phison BGA reference design - same | Low-profile PCIe card - integrated | Astera Aries BGA - similar class | Microchip BGA - similar class |
| PCIe Generation | Gen5 (32 GT/s) | Gen5 (32 GT/s) | Gen5 (32 GT/s) | Gen5 (32 GT/s) | Gen5 (32 GT/s) |
| Number of Lanes | 16 bidirectional | 16 bidirectional | 16 bidirectional | 16 bidirectional | 16 bidirectional |
| Maximum Data Rate per Lane | 32 Gbps | 32 Gbps | 32 Gbps | 32 Gbps | 32 Gbps |
| CXL Support | CXL 2.0 compatible | CXL 2.0 compatible | CXL 2.0 compatible | CXL compatible | CXL compatible |
| Diagnostic Mode | Eye-margin monitoring | Eye-margin monitoring | Eye-margin monitoring | Deep telemetry, Aries SDK | Standard diagnostics |
| Low-Latency Mode | Yes | Yes | Yes | Yes (configurable) | Yes (configurable) |
关键差异点
- Phison-internal silicon matched with Phison NVMe controller family （对比 Astera Labs Aries PT5161L)
- Production-proven retimer card reference (InWin IW-RT04-02) （对比 Microchip M88RT51632)
- Integrated eye-margin monitoring per lane （对比 Generic PCIe redrivers)
设计说明
Estimated: At 32 GT/s, the PS7201's receive path is highly sensitive to differential pair skew - target <1 ps intra-pair and <50 ps inter-pair. Route the reference clock with isolation from noisy switching rails, keep length matching within 5 mils across the 16 lanes, and use a 4-8 layer stack-up with continuous reference planes adjacent to high-speed traces.
Estimated: A full x16 retimer at 32 GT/s with typical 15 W board power (per InWin IW-RT04-02 reference) needs at least 1 square inch of copper pour directly under the BGA plus 1.5 m/s airflow. Without airflow, derate by 30 percent or expect thermal shutdown at sustained traffic. Always validate with the Phison thermal model before final layout.
Do not bypass the PS7201's reset and strap initialization - misconfigured straps cause silent link-training failures at Gen5 speeds that masquerade as channel problems. Always sequence PERST# correctly relative to the auxiliary supply, and verify the SMBus / I2C access window during firmware bring-up. Eye-margin diagnostics should be logged at power-on test for field diagnostics.
合规信息
RoHS and lead-free compliance per Phison retimer product disclosures as of 2026-10-15. Halogen-free status not explicitly stated in the retrieved web data; AEC-Q100 not applicable for datacenter retimers.
