VSC8211XVW - 1-Port GbE Cu/Fiber PHY, 117-LBGA | Microchip
MPN: VSC8211XVW ✓ AktifVSC8211XVW Ringkasan
A PHY (Physical Layer transceiver) is the interface block that converts between raw digital data and electrical or optical signaling on a copper or fiber link. In the system hierarchy, a PHY sits below the MAC (Media Access Control) block, which in turn sits below the network switch or host controller. Transceivers combine a PHY with parallel MAC-side interfaces so that a single silicon device can terminate a physical link while handing data to a MAC layer over a standard bus.
Key features of the VSC8211XVW include full triple-speed auto-negotiation support, a 1000BASE-X compliant SerDes for fiber modules, and a wide set of MAC-side ports: GMII, RGMII, MII, TBI, and RTBI. The two serial interfaces (SGMII/1000BASE-X SerDes and the parallel MAC ports) let a system reduce signal overhead compared with a purely parallel GMII connection while still supporting legacy 10/100 MII-based MACs.
Technically, the device combines an integrated 1.25 Gbps SerDes with a copper PHY capable of 10, 100, and 1000 Mb/s operation, using patented line driver technology that improves tolerance to noise and cable-plant imperfections. Auto-Media detection allows copper and fiber ports to be supported with one physical network port, reducing connector count and board area in media converter designs.
Typical applications include Gigabit uplinks on Fast Ethernet switches, fiber-to-copper media converters, 100BASE-FX industrial and campus links, GBIC and SFP optical module designs, and industrial Ethernet equipment requiring a single PHY that bridges copper and fiber media.
Design guidance: the 117-LBGA package demands careful via-in-pad and thermal-via layout, and the high-speed SerDes and copper pairs require controlled-impedance routing with clean references. Confirm regulator sequencing and 3.3 V rail decoupling close to the supply pins.
This page consolidates manufacturer datasheet detail, interface compatibility analysis, drop-in alternatives in the same package family, and practical PCB guidance that is not gathered in one place in the original device documentation.
Pilihan pengganti yang segera untuk VSC8211XVW — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera VSC8211XVW (sama faktor bentuk dan kaki) — berbeza dalam Device Type, Number of Drivers/Receivers, Package.
VSC8500XVW
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
VSC8221XVW
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
VSC8538XHJ
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →VSC8211XVW Spesifikasi
| Number of Drivers/Receivers | 1 / 1 |
| Device Type | PHY Transceiver (Copper and Fiber) |
| Supply Voltage Range | 3 V to 3.6 V |
| Kemasan | 117-LBGA (10 x 14 mm) |
| Packaging | Tray |
| Protocol | Gigabit Ethernet |
| Copper Data Rates | 10 / 100 / 1000 Mb/s (10/100/1000BASE-T) |
| Fiber Data Rate | 1000BASE-X, 1.25 Gbps |
| SerDes Rate | 1.25 Gbps |
| MAC-Side Interfaces | GMII, RGMII, MII, TBI, RTBI |
| Serial MAC Interfaces | SGMII and 1000BASE-X SerDes |
| Auto-Negotiation | Triple-speed auto-negotiation with Auto-Media detection |
| Legacy Support | 100BASE-FX media converter operation |
| Low-Power Design | Low power consumption per manufacturer datasheet |
| Line Driver Technology | Patented line driver for noise and cable-plant tolerance |
| Lead Free Status | Lead free |
| Status RoHS | Compliant |
| Ethernet Channel Count | 1 port (copper plus 1000BASE-X fiber) |
Panduan Konfigurasi Pin VSC8211XVW 117-lbga (10 x 14 mm)
Konfigurasi pin untuk VSC8211XVW (117-lbga (10 x 14 mm) pakai). Penomeran pin, fungsi, dan garis bentuk koneksi ditakrifkan dalam dokumen pengeluar. Rujuk dokumen untuk kebentuk dan pedoman pengasman.
Tiada data garisan pin yang diperoleh untuk VSC8211XVW.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
VSC8211XVW patut untuk 6 aplikasis: Copper-to-Fiber Media Converter, Gigabit Uplink on a Fast Ethernet Switch, GBIC and SFP Optical Module Designs, Industrial 100BASE-FX Equipment, Network Interface Cards and Embedded Ethernet, Automotive and Test Instrumentation.
Copper-to-Fiber Media Converter
The VSC8211XVW is the natural choice for a copper/fiber media converter because it combines a triple-speed 10/100/1000BASE-T copper PHY, a 1000BASE-X fiber PHY, and Auto-Media detection in a single 117-LBGA device. The integrated 1.25 Gbps SerDes lets the fiber port reuse the same high-speed silicon as the copper side, while patented line driver technology improves tolerance to noisy cable plants. One device therefore replaces a separate copper PHY and a separate fiber PHY, shrinking board area and reducing the number of high-speed nets the layout must route. The trade-off is thermal: a 117-ball LBGA in a small converter enclosure needs a solid ground plane with thermal vias to move heat out of the SerDes and line driver sections.
Disebarkan
Gigabit Uplink on a Fast Ethernet Switch
For a Fast Ethernet switch that needs a single Gigabit uplink, the VSC8211XVW delivers full 1000BASE-T line rate while still auto-negotiating down to 100BASE-TX or 10BASE-T on legacy copper links. The wide MAC-side interface set (GMII, RGMII, MII, TBI, RTBI) means the PHY can attach to almost any switching silicon without requiring an external MAC-interface translator, and SGMII offers a lower-pin-count alternative for newer designs. In practice this reduces switch-ASIC pin pressure and PCB routing complexity at 1.25 Gbps. Expect the copper magnetics and the 1.25 Gbps SerDes clocking to dominate the layout effort, so keep the PHY-to-magnetics path short and impedance-controlled.
Disebarkan
GBIC and SFP Optical Module Designs
The VSC8211XVW targets GBIC and SFP module designs directly, providing the SerDes and parallel MAC interfaces a pluggable optical module needs to bridge to a host switch or NIC. The manufacturer's datasheet describes direct connectivity to optical modules and triple-speed GBIC/SFP connectors, and the 1.25 Gbps SerDes matches the standard 1000BASE-X line rate without external CDR support. Low power consumption is especially valuable inside a thermally constrained SFP cage, where the module must dissipate heat without a forced-air path. The practical constraint is mechanical: a 117-ball LBGA demands a substrate with fine-pitch escape routing and a connector-height check against the module cage.
Disebarkan
Industrial 100BASE-FX Equipment
For industrial and campus equipment that standardizes on 100BASE-FX rather than 1000BASE-X, the VSC8211XVW still fits because the device supports 100BASE-FX media converter operation as called out by the manufacturer. Industrial links run over long fiber runs through patch panels and harsh connectors, so the patented line driver technology and its tolerance to cable-plant imperfections are the deciding features. Automatic media detection lets a single port accept either copper or fiber, which simplifies field service and reduces SKU count for installed-base products. Because industrial temperature grades vary by ordering code, confirm the exact temperature range of the VSC8211XVW ordering code before committing to a chassis with wide ambient swings.
Disebarkan
Network Interface Cards and Embedded Ethernet
Embedded platforms and add-in network interface cards often need to talk to an external MAC over RGMII or SGMII while presenting a standard 1000BASE-T port to the user, and the VSC8211XVW covers both sides in one device. Using SGMII keeps the connector count between PHY and MAC low, while RGMII remains available for legacy host controllers that lack a serial MAC interface. Because the PHY handles auto-negotiation and line coding, the host software only manages MAC framing. The main design risk is clocking: the 1.25 Gbps SerDes and the 125 MHz reference domain must be sourced cleanly, so budget for a low-jitter clock source and a short, isolated reference path.
Disebarkan
Automotive and Test Instrumentation
In test and measurement chassis, and in automotive gateway electronics, the VSC8211XVW offers a single-part solution where copper diagnostics and fiber backhaul must coexist in a small enclosure. Its 3.3 V single-supply operation simplifies power tree design, and the low power consumption helps in sealed enclosures with limited convection. Instrumentation front-ends often need a deterministic path from the PHY to the measurement host, which is easier to achieve with the selectable SGMII or GMII interfaces than with a fixed configuration. Validate EMC and ESD margins around the copper magnetics and the exposed 117-ball footprint, and keep the high-speed return path referenced to a continuous plane.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk VSC8211XVW — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | VSC8500XVW | VSC8221XVW | VSC8538XHJ |
|---|---|---|---|---|
| Package | 117-LBGA (10 x 14 mm) | 117-LBGA (10 x 14 mm) - same | 117-LBGA (10 x 14 mm) - same | 117-LBGA (10 x 14 mm) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Packing | Tray | Tray | Tray | Tray |
Penyeberangsung Jelas
- Copper PHY and 1000BASE-X fiber PHY in one device with Auto-Media detection (vsVSC8500XVW)
- Broadest MAC-side interface set in the family (vsVSC8221XVW)
- Single 3.3 V supply across SerDes, PHY and digital sections (vsVSC8538XHJ)
- Patented line driver for noisy cable-plant tolerance (vsVSC8221XVW)
Catatan Desain
The VSC8211XVW uses a 117-ball LBGA on a 10 x 14 mm footprint, so the escape-routing strategy determines whether the board can be assembled economically. Use a via-in-pad or microvia fan-out on all signal balls, with an 8 x 8 or finer ball pitch escape, and reserve a solid ground plane region under the array with a dense thermal-via field for heat removal. Fan-out density should be planned so that the SGMII and RGMII nets reach the MAC or magnetics without a second layer transition, because each layer change on a 1.25 Gbps pair adds jitter margin loss.
Route the 1.25 Gbps SerDes and the copper pairs as length-matched, continuously referenced pairs with no plane splits or stubs. Keep the PHY-to-magnetics differential pairs short, avoid vias in the pair if possible, and match the impedance to the magnetics and connector design target. Provide a low-jitter reference clock with a short, quiet return path, and keep switching regulators and their inductors physically distant from the PHY section, because supply ripple coupled into the line driver directly affects jitter and link margin.
The device runs from a single 3 V to 3.6 V rail, but the SerDes, line driver, and digital sections draw current in bursts during auto-negotiation and link training. Place the bulk capacitor and a 0.1 uF high-frequency capacitor directly at the supply and ground balls of the array, and provide a solid ground reference under the whole footprint rather than relying on stitched vias alone. Keep the 3.3 V regulator output and its magnetics away from the copper magnetics and the RJ45 area to avoid coupling conducted noise into the receiver front end.
A frequent mistake is treating the Auto-Media detection copper and fiber ports as fully independent links; the datasheet describes automatic media selection, so confirm which media can be active simultaneously and how link status is reported to the MAC before designing the magnetics and optical path. Another common error is assuming a generic 117-ball LGA land pattern works, because ball pitch and the power/ground ball map differ across the family - use the exact land pattern from the device documentation. Finally, plan for LGA-specific assembly capability and long board lead times early in the program.
Maklumat Kesediaan
RoHS compliance and lead-free status are stated in the distributor listings for the VSC8211XVW. AEC-Q100 qualification, REACH status, halogen-free declaration and conflict-minerals reporting are not stated for this ordering code.
