BCM8074BKFBG - Quad 10GBASE-KR XAUI Transceiver | Broadcom
MPN: BCM8074BKFBG ✓ פעילBCM8074BKFBG סקירה
A 10GBASE-KR transceiver is a physical-layer interface that serializes data onto copper backplane channels operating at 10 Gb/s. XAUI is a parallel, widebus serializer-deserializer interface commonly used between switching silicon and physical-layer devices. In the hierarchy of network interfaces, BCM8074BKFBG belongs to the serial communication interface and bus-conversion category rather than being a general-purpose protocol controller.
The principal feature of BCM8074BKFBG is its four-channel 10GBASE-KR capability. Consolidating four lanes into one device can simplify board partitioning while supporting the 10 Gb/s Ethernet traffic expected from modern aggregation, switching, and server-connectivity systems. Its dedicated SerDes calibration logic is particularly relevant to systems where transmit and receive paths must operate predictably across board-level channels.
The BCM8074BKFBG uses separate 1.0 V core and 1.8 V I/O supplies, allowing a board architecture to allocate voltage domains according to the internal circuitry and external interface requirements. Power sequencing must still be designed carefully because multi-rail SerDes devices generally require deterministic ramp order, suitable bypass capacitance, and controlled initialization before normal link operation.
Typical uses include 10GbE switching systems, line-card interfaces, backplane concentrators, network-interface equipment, and test systems for high-speed copper links. The device is most appropriate when the system architecture already requires 10GBASE-KR and XAUI rather than a general-purpose PHY.
Before layout, use the manufacturer pin-description and reference-design information to confirm the exact package, exposed-pad connection, rail sequencing, and SerDes implementation details. PCB designers should provide short, impedance-controlled connections and place high-frequency bypass capacitors close to the relevant supply pins.
This page organizes the BCM8074BKFBG identity, power-domain requirements, application context, design considerations, and documented substitution constraints. It also distinguishes genuine pin-compatible replacements from functionally similar devices whose pinout, register map, or power sequencing prevents drop-in use.
חלופות תחליף ישיר עבור BCM8074BKFBG — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
אין חלופות תואמות Drop-in עבור מוצר זה.
בקשת חלופותBCM8074BKFBG דירוגים מרביים ומאפיינים חשמליים
| Product Type | Quad-channel 10GBASE-KR serial-to-XAUI transceiver |
| Channel Count | 4 channels |
| Ethernet Rate | 10 Gb/s per channel |
| Backplane Standard | 10GBASE-KR |
| Host Interface | XAUI serial interface |
| Core Supply Voltage | 1.0 V |
| I/O Supply Voltage | 1.8 V |
| SerDes Calibration | Dedicated calibration logic |
| Primary Function | Serial communication, bus conversion, signal driving, and receiver |
| Application Class | Industrial networking and backplane interface |
| קצב נתונים | 10 Gb/s per 10GBASE-KR lane |
| Maximum Data Rate | 10 Gb/s per channel |
מדריך תצורת פינים של BCM8074BKFBG standard
תצורת פינים עבור BCM8074BKFBG (מארזת standard). רכיב אנלוגי זה כולל פיני כניסה, יציאה ואספקת מתח. יש לעיין בגיליון הנתונים של היצרן לתצורות פיני איפוס היסט, פיצוי והפעלה. אידיאלי למעגלי עיצוב אותות ומגברים.
אין נתוני פריסת פינים מפורטים עבור BCM8074BKFBG.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
BCM8074BKFBG מתאים עבור 6 יישוםs: 10GbE Switching Line Cards, Backplane Concentrators, Network Interface Equipment, High-Speed Copper Link Test Systems, Industrial Backplane Systems, Data-Center Connectivity Platforms.
10GbE Switching Line Cards
BCM8074BKFBG fits a 10GbE line-card architecture requiring four 10GBASE-KR backplane channels and an XAUI connection toward the switching fabric. Its four-channel organization reduces the number of separate backplane transceiver functions on a port-dense board. The device's dedicated SerDes calibration logic supports controlled transmitter and receiver behavior, while the 1.0 V core and 1.8 V I/O rails require deliberate sequencing and local decoupling. Board designers must still confirm lane loss, reference-clock distribution, impedance continuity, firmware control, and thermal performance against the manufacturer reference design.
מומלץ
Backplane Concentrators
A backplane concentrator can use BCM8074BKFBG to bridge multiple 10GBASE-KR copper lanes to an XAUI-facing switching or aggregation block. The four 10 Gb/s channels provide a practical grouping of high-speed links in a compact interface IC. Because backplane channels can exhibit insertion loss and impedance discontinuities, the implementation must follow the manufacturer's reference layout and channel requirements. Controlled rail ramps, short supply connections, proper SerDes calibration, and uninterrupted reference-clock distribution are central to obtaining repeatable link behavior.
מומלץ
Network Interface Equipment
BCM8074BKFBG is appropriate for network-interface equipment that needs four 10GBASE-KR physical channels and a high-speed host-side XAUI path. The architecture can serve aggregation, routing, or specialized connectivity platforms where four backplane-facing links share a common interface device. Because the BCM8074BKFBG is not a general-purpose Ethernet controller, the surrounding system must provide the required clocking, configuration, monitoring, and recovery behavior. Validate signal integrity, power sequencing, and supported operating conditions before using it in a new line-card design.
מומלץ
High-Speed Copper Link Test Systems
BCM8074BKFBG can be evaluated in a test system that reproduces the four-lane 10GBASE-KR and XAUI arrangement found in switching equipment. This application allows engineers to examine receiver behavior, transmitter calibration, lane margins, and interaction with PCB or cable impairments. The test fixture must reproduce the device's 1.0 V and 1.8 V supply domains with controlled sequencing and provide representative reference-clock and termination arrangements. Use the manufacturer application information to define measurements, fault injection, and recovery expectations.
מומלץ
Industrial Backplane Systems
Industrial backplane systems can use BCM8074BKFBG where four 10 Gb/s copper links provide a suitable backplane architecture and the platform is designed around XAUI. The device's receiver, transmitter, bus-conversion, and serial-communication functions make it a focused physical-layer building block rather than a complete communications controller. Implementation should account for industrial temperature requirements, EMC constraints, connector choices, and long-term component availability. Firmware-level link management and diagnostic functions must be integrated with the host switching or test architecture.
מומלץ
Data-Center Connectivity Platforms
BCM8074BKFBG is relevant to data-center connectivity platforms built around 10GBASE-KR backplanes and XAUI switching silicon. Its four 10 Gb/s channels support a consolidated high-speed physical interface while dedicated SerDes calibration logic assists repeatable lane operation. A successful design requires stringent PCB-channel control, precise clock distribution, controlled 1.0 V and 1.8 V ramps, and adequate SerDes trace routing. Confirm operating-temperature, lifecycle, availability, and host-interface support for the exact platform before final sourcing.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור BCM8074BKFBG — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה |
|---|---|
| Brand | Broadcom |
| Channel Count | 4 channels |
| Backplane Protocol | 10GBASE-KR |
| Serial Data Rate | 10 Gb/s per channel |
| Host Interface | XAUI |
| Core Supply Voltage | 1.0 V |
| I/O Supply Voltage | 1.8 V |
| SerDes Calibration | Dedicated calibration logic |
| Primary Device Class | Interface transceiver |
הערות תכנון
Design the 1.0 V core and 1.8 V I/O rails as a coordinated multi-supply system. Confirm the manufacturer-approved ramp order, ramp-time limits, reset behavior, and minimum supply dwell time before assigning power-good signals. Place the required bypass capacitance directly beside the associated supply and ground pins, keep supply and return paths short, and monitor sequencing with a dedicated test point so partial power-up conditions can be diagnosed.
Treat each 10GBASE-KR channel as a controlled-impedance signal path and route XAUI connections using the manufacturer's recommended topology. Preserve continuous reference planes, minimize layer transitions and stubs, and avoid placing disruptive power or split-plane structures beneath SerDes routes. The reference clock and calibration-related connections also require short, symmetric routing. Validate the completed layout with the manufacturer's channel and signal-integrity guidance before fabrication.
Validate insertion loss, return loss, crosstalk, and lane-margin behavior across the complete path from the host XAUI interface through the 10GBASE-KR channel. Component placement, connector launch geometry, via transitions, and backplane media all affect performance. Use the manufacturer application information to establish the required channel margin and test setup, and include compliance or margin testing rather than relying only on nominal bit-rate operation.
Do not treat the Marvell 88X3340P as a substitute for BCM8074BKFBG. Its pinout, register mapping, power sequencing, rail configuration, and SerDes calibration logic differ, so replacing one with the other requires a board and firmware redesign. Likewise, do not approve the related BCM8074AKFBG suffix without checking the exact package, pin assignment, electrical limits, and ordering configuration.
מידע על תאימות
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified in the available component records. Verify these attributes with the manufacturer for the exact orderable device.