VSC8514EV - Quad-Port Gigabit Ethernet PHY | Microchip
MPN: VSC8514EV ✓ Hoạt độngVSC8514EV Tóm tắt
A Gigabit Ethernet PHY is a physical-layer transceiver within the Ethernet interface hierarchy. It converts logical data transmitted by a MAC or switching fabric into electrical signaling suitable for copper cables, while providing receive and clock-recovery functions in the opposite direction. The VSC8514EV consolidates four copper Gigabit Ethernet ports into one device, reducing component count and simplifying multi-port equipment architectures compared with four unrelated PHY implementations.
The principal verified features include four 10/100/1000BASE-T copper ports, low-power operation, Synchronous Ethernet, a QSGMII MAC connection, and two recovery-clock outputs. Its integrated two-wire serial multiplexer supports control of PoE modules. Low-EMI line drivers and integrated line-side termination resistors can simplify board design and reduce external component count, although the manufacturer datasheet and evaluation-board documentation should be consulted for exact implementation details and layout constraints.
The device is positioned for infrastructure rather than isolated endpoint use. A single quad-port PHY can serve aggregation ports in a broadband gateway, server-rack networking equipment, enterprise access hardware, wireless base-station backhaul, and carrier transport systems. QSGMII provides a high-speed parallel interface between the PHY and a switching or aggregation device, while Synchronous Ethernet supports timing-oriented network architectures.
Designers must account for the physical-layer requirements of the complete four-port system, including magnetics or copper interface implementation, termination, clocking, power delivery, thermal performance, and signal-integrity control. The verified evaluation schematic identifies VDD25A and VDD1A supply domains and shows six 0.1 uF capacitors associated with the VDD25A pins. Those values should be treated as evaluation-board implementation details rather than universal recommendations.
VSC8514EV selection should begin with the four-port copper Ethernet requirement, QSGMII compatibility, Synchronous Ethernet support, PoE-module-control needs, and the manufacturer reference design. This page separates sourced product facts from unspecified details and avoids presenting unsupported electrical, package, temperature, or pricing values as verified specifications.
Bộ thay thế dễ dàng lắp đặt cho VSC8514EV — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Không có bộ thay thế dễ dàng lắp đặt sẵn có cho sản phẩm này.
Yêu cầu các bộ thay thếVSC8514EV Thông số kỹ thuật
| Product Type | Quad-port Gigabit Ethernet physical-layer transceiver |
| Port Count | 4 copper Ethernet ports |
| Supported Copper Ethernet Rates | 10/100/1000BASE-T |
| MAC Interface | QSGMII |
| Synchronous Ethernet Support | Supported |
| Recovery Clock Outputs | 2 |
| Power over Ethernet Control | Integrated quad two-wire serial multiplexer |
| Line Drivers | Low electromagnetic interference line drivers |
| Line-Side Termination | Integrated line-side termination resistors |
| Operating Power Class | Low-power operation |
| Media Interface | Copper media interfaces |
| Evaluation Board Supply Domains | VDD25A and VDD1A |
| Evaluation Board VDD25A Decoupling | 6 x 0.1 uF capacitors |
| Target Applications | Broadband gateways, data centers, enterprise networks, TDM backhaul, wireless base stations, and carrier applications |
Hướng dẫn cấu hình chân VSC8514EV standard
Cấu hình chân cho VSC8514EV (standard gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho VSC8514EV.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
VSC8514EV phù hợp cho 6 Áp dụngs: Broadband Gateway, Enterprise Network Equipment, Data-Center Network Appliance, Wireless Base-Station Backhaul, TDM Backhaul Equipment, Carrier Network Equipment.
Broadband Gateway
The VSC8514EV fits a broadband gateway that requires multiple copper Gigabit Ethernet service ports managed through a centralized switching or aggregation device. Its four 10/100/1000BASE-T channels reduce the number of separate PHY devices, while the QSGMII interface provides the high-speed parallel connection to the host network silicon. Low-power operation is particularly relevant to continuously deployed access equipment. The integrated two-wire serial multiplexer can also control PoE modules, although the gateway still requires properly designed copper interfaces, isolation, magnetics, thermal provisions, and validated clocking.
Được đề xuất
Enterprise Network Equipment
The VSC8514EV is suitable for enterprise access, aggregation, and switching equipment that needs four copper Gigabit Ethernet channels on a common PHY device. Low-EMI line drivers help control unwanted emissions in dense equipment, while integrated line-side termination resistors can reduce the external component burden. QSGMII connects the PHY group to a compatible switching or aggregation block. Before layout release, engineers should confirm the exact package, supported copper-media implementation, synchronization mode, operating-temperature limits, and reference-board power distribution using Microchip’s datasheet and evaluation schematic.
Được đề xuất
Data-Center Network Appliance
The VSC8514EV can support four 10/100/1000BASE-T network interfaces in a data-center appliance, appliance controller, or edge network node. Its low-power operating objective can help limit power consumption in always-on infrastructure, and the QSGMII MAC interface provides a consolidated path toward a switching fabric. Two recovery-clock outputs may support the system clock architecture. The implementation must still be validated for thermal dissipation, electromagnetic interference, copper-media component selection, timing margins, and the number of adjacent high-speed ports around the four channels.
Được đề xuất
Wireless Base-Station Backhaul
The VSC8514EV is directly identified by Microchip as supporting wireless base stations, making its four copper Gigabit Ethernet ports useful in base-station backhaul and aggregation equipment. The combination of Synchronous Ethernet and two recovery-clock outputs supports equipment where recovered clock information is important. QSGMII enables connection to a local switching or aggregation device. Engineering evaluation should include synchronization-mode requirements, recovered-clock quality, thermal performance, copper-channel return loss, and PoE-control topology. These details must be confirmed from the manufacturer documentation rather than inferred from the family description.
Được đề xuất
TDM Backhaul Equipment
The VSC8514EV can provide four copper Gigabit Ethernet interfaces for time-division-multiplexed backhaul equipment, where multiple service or aggregation paths must terminate in a carrier-grade platform. Synchronous Ethernet and two recovery-clock outputs are the principal features for designs requiring recovered timing. The low-power objective and integrated PoE-module-control multiplexer can simplify multiport implementations. Deployment still depends on compliance with the applicable transport, timing, emission, isolation, and environmental requirements of the target carrier network, so the complete reference design must be reviewed before production.
Được đề xuất
Carrier Network Equipment
The VSC8514EV is aimed at carrier applications that combine several copper Gigabit Ethernet services with centralized switching, PoE-module control, and synchronization functions. Four integrated copper channels can reduce board-level PHY duplication, while the QSGMII interface provides a scalable connection to a packet-processing device. Two recovery-clock outputs can assist clock distribution, and the integrated two-wire serial multiplexer supports control of four PoE modules. Designers should use the evaluation schematic for power-domain and layout guidance, but must not treat its six 0.1 uF VDD25A capacitors as mandatory values without consulting the device datasheet.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho VSC8514EV — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này |
|---|---|
| Product Type | Quad-port Gigabit Ethernet PHY |
| Copper Port Count | 4 ports |
| Supported Ethernet Rates | 10/100/1000BASE-T |
| MAC Interface | QSGMII |
| Synchronous Ethernet | Supported |
| Recovery Clock Outputs | 2 |
| PoE Module Control | Integrated quad two-wire serial multiplexer |
| Brand | Microchip Technology |
Bảo phân biệt quan trọng
- Four copper Gigabit Ethernet channels in one PHY (vsVSC8514)
- Integrated PoE-module control (vsVSC8514)
- Synchronous networking and clock distribution support (vsVSC8514)
Ghi chú thiết kế
Use the Microchip evaluation schematic to identify the VDD25A and VDD1A power domains and their decoupling arrangement. The retrieved schematic snippet shows six 0.1 uF capacitors associated with VDD25A, but these are reference-board values rather than universal production recommendations. Confirm the datasheet’s voltage tolerances, sequencing rules, current limits, and recommended output capacitors before assigning decoupling networks.
Pay close attention to the four copper channels, QSGMII routing, clock outputs, and power distribution. Maintain the interface-impedance and return-path recommendations from the manufacturer reference design, provide continuous ground references, and verify the copper-media implementation under adjacent-channel activity. Low-EMI line drivers help emissions control but do not remove the need for careful connector, magnetics, and return-path design.
Validate each Gigabit Ethernet channel for insertion loss, return loss, impedance continuity, crosstalk, and synchronization behavior in the assembled PCB. QSGMII is a high-speed parallel interface, so edge-rate, skew, clocking, and routing decisions must follow the manufacturer’s electrical and layout guidance. Also verify how the two recovery-clock outputs are used because clock topology differs among Synchronous Ethernet and carrier-equipment architectures.
Do not interpret the EV evaluation documentation as a complete production BOM, and do not assume the zero prices on this page represent free inventory. The supplied sources do not verify the package pin count, temperature range, compliance declarations, or current price. Obtain the official orderable datasheet and a live distributor quotation before committing the PCB, enclosure, thermal design, or BOM.
Thông tin tuân thủ
The supplied web results do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. The product is described as active in production by a distributor listing, but lifecycle status should be reconfirmed during purchasing.
