BCM5482A1KFB Dual-Port Gigabit Ethernet PHY | Broadcom
MPN: BCM5482A1KFB ✓ AktifBCM5482A1KFB Ringkasan
An Ethernet PHY converts between a digital MAC-side interface and analog copper-cable signaling. The BCM5482A1KFB integrates two physical-layer channels, allowing one component to serve two Ethernet ports while reducing board area in IP phones, access equipment, industrial controllers, and other multiport systems. Its dual-port architecture can reduce the number of discrete PHY packages required on a board.
The BCM5482A1KFB supports 10, 100, and 1000 Mb/s rates and is compatible with IEEE devices operating in half-duplex and full-duplex configurations. This broad rate support lets a product design accommodate legacy 10BASE-T and 100BASE-TX links while retaining Gigabit Ethernet capability. The integrated SerDes also connects the PHY channels to digital network processors or switching silicon.
Clock timing can be adjusted to compensate for board-trace delays required by the RGMII specification. This feature is particularly useful when the PHY and MAC are separated by a routed interface or when propagation delay through a multilayer board would otherwise affect timing margins. The adjustment capability supports more practical placement of high-speed digital circuitry on space-constrained boards.
Low-power operation is a central design benefit for dual-port PHYs because each active channel continuously performs line coding, signal conditioning, and cable diagnostics. The device is suited to IP phone uplinks, industrial networking equipment, customer-premises equipment, and embedded dual-Ethernet systems where package size, port density, and interface timing are important design constraints.
For implementation, follow the Broadcom BCM5482 documentation for power sequencing, magnetic-component selection, termination, clock configuration, and the exact pin assignments. Preserve the recommended high-speed layout practices around the RGMII interface and place input, output, and decoupling connections according to the reference design to avoid signal-integrity degradation.
This page combines the device’s dual-port Gigabit Ethernet capabilities with practical selection guidance, verified source links, interface considerations, and design guidance. It is designed to help engineers identify the correct operating conditions and board-level integration requirements before committing a BCM5482A1KFB-based Ethernet interface to production.
Alternatif penggantian untuk BCM5482A1KFB — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Tidak ada alternatif pengganti yang tersedia untuk produk ini.
Permintaan AlternatifBCM5482A1KFB Rating Maksimal & Karakteristik Listrik
| Product Type | Dual-port 10/100/1000BASE-T Ethernet PHY transceiver with SerDes |
| Number of Ports | 2 ports |
| Supported Data Rates | 10 Mb/s, 100 Mb/s, and 1000 Mb/s |
| Duplex Operation | Half-duplex and full-duplex |
| Digital Interface | RGMII |
| Clock Timing Adjustment | Adjustable to compensate for RGMII board-trace delays |
| Cable Standard | 10/100/1000BASE-T |
| IEEE Compatibility | IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab |
| Package Type | 121-pin plastic ball grid array |
| Tipe Mounting | Surface mount |
| Power Architecture | Low-power dual-port integration |
| SerDes Integration | Integrated SerDes |
BCM5482A1KFB 121-pin plastic ball grid array Diamant Konfigurasi Panduan
Konfigurasi pin untuk BCM5482A1KFB (121-pin plastic ball grid array pakai pakai). Komponen analog ini memiliki pin masukan, keluaran, dan pengirim daya. Lihat datasheet produsen untuk konfigurasi pin offset null, kompensasi, dan pengaktifan. Ideal untuk peralatan sinyal dan kabel penggandaran.
Tidak ada data diatribut pin yang tersedia untuk BCM5482A1KFB.
Lihat ke: datasheet produk untuk konfigurasi pin penuh.
Aplikasi Umum
BCM5482A1KFB cocok untuk 6 aplikasis: IP Phone Uplink, Industrial Ethernet Gateway, Access Equipment Uplink, Network Interface Controller, Embedded Dual-Ethernet Controller, Ethernet Test and Measurement.
IP Phone Uplink
The BCM5482A1KFB fits an IP phone that needs two copper-network connections while keeping the PCB compact. One channel can serve a primary network uplink while the second supports a secondary connection, pass-through, or equipment-specific Ethernet function. The device’s dual 10/100/1000BASE-T capability accommodates 10, 100, and 1000 Mb/s network links, while integrated SerDes reduces the number of external interface components. Its RGMII clock adjustment also helps address PCB routing delay between the PHY and host controller.
Direkomendasikan
Industrial Ethernet Gateway
The BCM5482A1KFB is suitable for an industrial gateway that bridges local equipment to a copper Ethernet backbone. Two integrated PHY channels provide a compact implementation for separate network segments without requiring two large multi-pin packages. Support for 10, 100, and 1000 Mb/s links allows the same design to connect both legacy and Gigabit infrastructure. Low-power dual-port integration is valuable when the gateway has a constrained thermal envelope or limited board area.
Direkomendasikan
Access Equipment Uplink
Access terminals, customer-premises equipment, and compact network appliances can use the BCM5482A1KFB when two Ethernet ports are required near the edge of the network. Its half-duplex and full-duplex operation across 10, 100, and 1000 Mb/s provides compatibility with a broad range of endpoint speeds. The 121-pin PBGA arrangement supports high interconnect density, while integrated SerDes and adjustable RGMII timing help engineers develop a repeatable host-interface layout.
Direkomendasikan
Network Interface Controller
The BCM5482A1KFB can provide the copper-facing side of a network interface controller or switching subsystem. Its SerDes connection supports a digital host architecture, while the adjustable RGMII clock permits compensation for board propagation delay. The device is appropriate where a system must offer both 100BASE-TX and 1000BASE-T connectivity over compact PCB space. Designers should implement the Broadcom timing and reference-layout guidance to preserve signal integrity at the host interface.
Direkomendasikan
Embedded Dual-Ethernet Controller
An embedded controller requiring two wired-network channels can use the BCM5482A1KFB to reduce PHY component count and routing congestion. The package supports 10BASE-T, 100BASE-TX, and 1000BASE-T links, enabling equipment to operate alongside both legacy and high-speed infrastructure. Its integrated dual-port architecture is useful in control cabinets and compact automation equipment, where surface-mount area is limited and predictable thermal behavior is important.
Direkomendasikan
Ethernet Test and Measurement
The BCM5482A1KFB can form the network-facing section of portable test equipment or communication analyzers that need two copper ports. Supporting 10, 100, and 1000 Mb/s makes it possible to connect the instrument to a broad range of network equipment for configuration, loopback, and diagnostic workflows. The low-power dual-port integration helps conserve space and energy, while RGMII timing adjustment supports layouts where the PHY must be separated physically from the measurement controller.
Direkomendasikan
Data referensi engineering untuk BCM5482A1KFB — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini |
|---|---|
| Package | 121-pin plastic ball grid array |
| Brand | Broadcom |
| Port Count | 2 ports |
| Supported Data Rates | 10 Mb/s, 100 Mb/s, and 1000 Mb/s |
| Duplex Modes | Half-duplex and full-duplex |
| Digital Interface | RGMII with adjustable clock timing |
| Integrated SerDes | Yes |
| Cable Compatibility | 10/100/1000BASE-T |
| IEEE Standards | IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab |
| Power Characteristics | Low-power dual-port integration |
Diferensiator Kunci
- Two copper Ethernet physical layers in one package (vsSingle-port Ethernet PHY)
- Broad copper-link rate support in each integrated channel (vs100BASE-TX-only PHY)
- Adjustable RGMII timing (vsPHY without RGMII delay adjustment)
Catatan Desain
Route RGMII data and clock traces on a continuous ground plane with controlled impedance and matched lengths. Keep the clock away from switching power nodes and analog magnetics, and avoid vias or plane transitions on high-speed nets where possible. The BCM5482A1KFB supports adjustable clock timing for board-trace delay, but compensation should supplement—not replace—careful topology, return-path continuity, and signal-integrity verification.
Decouple each supply rail close to its package power balls using the capacitance and placement specified by Broadcom. Preserve the recommended power-up and power-down sequence, and account for inrush when both PHY channels are enabled. Estimate supply-headroom demand from the manufacturer’s worst-case operating current for the selected port rates, then verify regulator tolerance, startup behavior, and thermal rise across the complete enclosure.
Do not infer that any dual-port Gigabit Ethernet PHY is a drop-in replacement. A valid substitution must match the 121-pin package, ball assignment, power rails, RGMII timing, control interface, reset behavior, and management requirements. In particular, the related BCM5482A2KFB should not be selected as a drop-in part without a documented manufacturer or distributor cross-reference confirming those conditions.
Follow the Broadcom reference circuit for the line-side network interface, including the recommended isolation or magnetics arrangement, termination, and protective-network placement. Keep high-current Ethernet return currents controlled and provide the intended chassis or surge-current path to the network interface. Validate conducted and radiated emissions because PHY clocking, high-speed digital routing, and external magnetics can create coupling paths if their return-current paths are poorly controlled.
Informasi Konformitas
The available manufacturer and distributor sources do not provide explicit compliance declarations for this ordering code. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status with Broadcom before production release.
