VSC8484XJP - Quad-Channel XAUI Transceiver | Microchip Technology
MPN： VSC8484XJP ✓ 啟用中VSC8484XJP 概覽
A XAUI-to-serial transceiver is a high-speed interface IC that converts parallel XAUI signals into lower-rate serial channels suitable for optical or copper backplane links. It belongs to the transceiver hierarchy: serial transceiver, network interface IC, communications IC, and semiconductor. This architecture helps equipment designers implement 10G links without requiring a separate external dispersion-compensation circuit for every channel.
The principal benefits of the VSC8484 family are four-channel integration, electronic dispersion compensation, approximately 1 W dissipation per channel, and support for the port densities required by next-generation 10G platforms. Integration reduces board area and component count, while EDC can compensate for channel impairments introduced by the transmission medium. The four-channel structure is particularly useful where link density is more important than very low power per port.
The VSC8484 family is positioned between the physical transmission medium and the host digital interface. In a WAN or LAN system, the transceiver receives parallel data from a network processor or switch ASIC, performs signal conditioning and dispersion compensation, and serializes the data for an SFP+, KR, or other compatible serial link. Its architecture is intended to support next-generation 10G equipment designs while controlling the implementation cost of each channel.
Typical uses include 10G switching systems, router and line-card interfaces, server connectivity equipment, optical backplanes, and copper backplane links. The device is also relevant to distributed computing and storage systems that require multiple high-speed network ports within a constrained chassis. System-level performance still depends on correct signal-integrity routing, suitable reference-clock and supply implementation, and the electrical characteristics of the connected link.
For a new layout, use the complete VSC8484 datasheet and its reference-design guidance to determine exposed-pad connections, decoupling, clock requirements, differential trace geometry, and connector or backplane interface details. The suffix-specific package drawing must be checked before PCB release because the commercial ordering code alone does not establish its mechanical dimensions. Confirm that the selected board supports the required XAUI, serial, reference-clock, and power interfaces.
This product page combines the manufacturer's architecture and power information with practical interface-selection guidance, package caveats, sourcing workflow, and a parameter-level comparison framework. It is intended to help engineers determine whether the quad-channel VSC8484 architecture fits a 10G connectivity design before beginning board-level implementation.
直接替換替代品，適用於 VSC8484XJP — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： VSC8484XJP （相同外形與佔位） — 差異在於 Power Dissipation, Product Type.
此產品無可直接替換的替代品。
申請替代品VSC8484XJP 規格
| Product Type | Quad-channel XAUI-to-serial transceiver |
| Channel Count | 4 channels |
| Power Dissipation | 1 W per channel |
| Data-Rate Class | 10G platforms |
| Input Interface | XAUI |
| Output Interface | SFP+, KR, and compatible serial links |
| Dispersion Compensation | Electronic dispersion compensation (EDC) |
| Target Network Domains | WAN, LAN, and backplane |
| Primary Application | High-density server connectivity |
| Port-Density Objective | Next-generation 10G platforms |
VSC8484XJP standard 腳位配置指南
VSC8484XJP（standard 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： VSC8484XJP.
請參閱 資料表 以查看完整腳位配置。
典型應用
VSC8484XJP 適用於 6 應用s: 10G Ethernet Switching Systems, Server Connectivity Equipment, Optical Backplane Interfaces, WAN and Line-Card Equipment, Distributed Storage and Data-Center Networking, Industrial Backplane Communication.
10G Ethernet Switching Systems
The VSC8484XJP fits high-density 10G switch line cards that need several XAUI connections between switching silicon and serial network ports. Its four-channel architecture consolidates four links into one device, while integrated electronic dispersion compensation supports next-generation 10G platforms. The approximately 1 W-per-channel dissipation establishes the primary thermal-design requirement, so airflow, copper spreading, and nearby heat sources must be considered. System integration also requires confirming the selected SFP+, KR, or other serial-media architecture against the Microchip Technology datasheet before assigning connector or backplane channels.
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Server Connectivity Equipment
The VSC8484XJP is appropriate for server-connectivity equipment requiring a compact group of high-speed XAUI-to-serial links. Four integrated channels can reduce the number of discrete transceiver devices and associated board-area requirements compared with four unrelated single-channel implementations. Designers should plan thermal capacity for approximately 1 W per channel and preserve the high-speed differential routing required by the serial outputs. It is especially relevant where the host processor or network ASIC exposes XAUI and the equipment supports 10G WAN, LAN, or backplane traffic.
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Optical Backplane Interfaces
The VSC8484XJP can support optical-backplane links that convert four parallel XAUI channels into serial channels for downstream optical modules or backplane components. Its integrated electronic dispersion compensation addresses channel-impairment requirements associated with high-speed transmission and is a major reason to consider the VSC8484 family for 10G equipment. The exact optical lane rates, equalization requirements, and media reach must be established from the manufacturer datasheet. Board implementation must also account for the roughly 1 W dissipation per channel and the strict return-path and differential-pair requirements of high-speed links.
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WAN and Line-Card Equipment
The VSC8484XJP is suited to WAN and telecom line-card designs that need multiple high-speed serial links behind an XAUI host interface. Four channels provide a practical density increase for next-generation 10G platforms, while integrated EDC reduces the external circuitry needed for dispersion management. Engineers must ensure the line card has the required reference clock, low-noise supplies, controlled-impedance routing, and thermal capacity. Because the ordering suffix represents a specific package configuration, the mechanical drawing and pin assignments must be taken from the suffix-specific manufacturer documentation.
推薦
Distributed Storage and Data-Center Networking
The VSC8484XJP can support distributed storage and data-center networking equipment that needs dense 10G backplane or server-facing connectivity. Its four-channel architecture allows several links to share a compact board area, and integrated dispersion compensation supports robust channel implementation. The main engineering trade-off is power: approximately 1 W per channel means that a four-channel board can dissipate roughly 4 W under the manufacturer's stated channel power figure. Designers should use thermal simulation and enclosure airflow planning while maintaining controlled-impedance differential traces from the transceiver to the relevant network or storage interface.
推薦
Industrial Backplane Communication
The VSC8484XJP is applicable to industrial communication equipment requiring several high-speed links across a backplane. Its quad-channel XAUI-to-serial format targets WAN, LAN, and backplane signal paths, while EDC assists with dispersion-related channel behavior. Industrial implementations must verify temperature limits, power-supply tolerance, isolation requirements, and environmental qualification against the manufacturer documentation. PCB signal integrity is equally important: maintain the specified differential impedance, minimize branch stubs, and provide a clean reference implementation before evaluating the complete backplane channel.
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推薦產品摘要
工程參考資料，適用於 VSC8484XJP — 比較、設計指引及合規資訊。
選型指南
設計說明
Budget approximately 1 W of dissipation per channel, or about 4 W for all four channels, when assessing the VSC8484 thermal path. This is an estimate based on the manufacturer description rather than a guaranteed worst-case operating value. Use the datasheet maximum-current and worst-case conditions for final junction-temperature analysis. Provide uninterrupted copper beneath exposed thermal features where applicable and include the transceiver heat load in enclosure airflow calculations.
Treat every XAUI and high-speed serial connection as a controlled-impedance differential route. Use the Microchip Technology layout guidance for trace spacing, pair length matching, reference planes, and connector or backplane transitions. Avoid stubs and unnecessary layer changes, and keep switching-power return paths separated from sensitive high-speed nets. Validate the completed board with signal-integrity simulation or measurements because four channels can amplify crosstalk and impedance discontinuities.
Confirm the mechanical outline, exposed-pad pattern, pin numbering, and land pattern for the exact XJP ordering code before releasing the PCB. Place power and decoupling connections directly at the relevant device pins, and route high-speed differential pairs before committing to component placement. Keep support circuitry close without obstructing thermal paths. A footprint assembled from an incomplete distributor listing can create pad, solder, or pin-mapping errors even when the functional device family is correct.
Do not assume that another VSC8484 base code is a direct substitute; package, temperature, clock, and qualification suffixes can alter the acceptable configuration. Likewise, a generic interface transceiver is not automatically interchangeable because package pinout and high-speed channel behavior must both match. Review the manufacturer datasheet for reference-clock, supply sequencing, reset, configuration, and channel-enable requirements before schematic capture.
合規資訊
No explicit compliance declarations are stated in the manufacturer product-page or distributor-listing excerpts. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status using the applicable Microchip Technology product documentation and declaration for the exact ordering code.
