BCM89836A0BFBG - 100BASE-T1 Automotive Ethernet PHY | Broadcom
料号： BCM89836A0BFBG ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
BCM89836A0BFBG 概述
Automotive Ethernet PHYs form the physical layer of the modern in-vehicle network hierarchy: the PHY converts digital MAC data into analog signals for transmission over the single twisted pair, sitting below the Ethernet switch and above the copper cable plant. 100BASE-T1 (formerly BroadR-Reach) replaced legacy 100 Mbit/s systems by transmitting transmit and receive signals simultaneously in full-duplex mode over one pair, saving wiring weight and cost in vehicles.
Key characteristics of the BCM89836 family include single-pair full-duplex 100 Mbit/s operation, automotive temperature capability, low electromagnetic emissions suitable for unshielded cabling, and support for power-saving modes demanded by telematics and body-electronics modules. According to Mouser, the part is catalogued as an RF System on a Chip - SoC 100BASE-T1 PHY, confirming its role as a highly integrated PHY SoC rather than a discrete transceiver front end.
Architecturally, the device integrates the analog front end, DSP-based equalizers, echo cancellation and clock recovery needed to achieve reliable 100 Mbit/s communication over a single pair at distances used in vehicle topologies. Integration reduces the bill of materials versus discrete PHY plus magnetics approaches, and helps meet the strict EMI budgets of antenna-proximate modules.
Typical applications include automotive camera links for surround-view and driver-monitoring systems, ADAS sensor networks, telematics control units, gateway modules, infotainment backbones, and battery management communication in electric vehicles - anywhere a compact, low-cost, EMI-friendly 100 Mbit/s in-vehicle link is required.
When designing this part in, verify the exact package dimensions, pinout and supply rails against the official Broadcom datasheet, and follow the manufacturer reference schematic for MDI termination, magnetics and decoupling, since single-pair PHY performance is highly layout dependent.
This page synthesizes distributor pricing and availability, cross-reference research results, and practical design notes in one place - information not consolidated in the manufacturer datasheet. All unverified parameters are explicitly flagged rather than guessed.
直接替换替代料： BCM89836A0BFBG ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
BCM89836A0BFBG
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →BCM89836A0BFBG P3G
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
BCM89836A0BFBG 最大额定值与电气特性
| Product Type | 100BASE-T1 Automotive Ethernet PHY SoC |
| Manufacturer | Broadcom Limited (Broadcom / Avago) |
| 数据速率 | 100 Mbit/s |
| Ethernet Standard | 100BASE-T1 (single-pair, full-duplex) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant (per JLCPCB listing) |
| 生命周期状态 | Active (in production, ships today per DigiKey) |
BCM89836A0BFBG standard 引脚配置指南
BCM89836A0BFBG（standard 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： BCM89836A0BFBG.
请参阅 数据手册 以查看完整引脚配置。
典型应用
BCM89836A0BFBG 适用于 6 应用s: Automotive Camera Links, Telematics Control Units (TCU), Vehicle Gateway Modules, ADAS Sensor Networking, Infotainment and Display Links, Electric Vehicle Battery Management.
Automotive Camera Links
The BCM89836A0BFBG connects surround-view, rear-view and driver-monitoring cameras to the vehicle ECU over a single unshielded twisted pair at 100 Mbit/s, sufficient for compressed video streams from multiple camera modules. Because 100BASE-T1 transmits full-duplex on one pair, the harness saves copper weight and connector size versus two-pair solutions, and the PHY's low-emission profile helps modules meet EMC limits when routed near vehicle antennas. The PHY is placed between the camera's MAC (typically a SoC in the camera or ECU) and the MDI connector with integrated magnetics; the link budget and cable length must be validated against the 100BASE-T1 reach specification for the vehicle topology.
推荐
Telematics Control Units (TCU)
In telematics control units, the BCM89836A0BFBG provides the 100 Mbit/s in-vehicle uplink between the cellular/wireless module and the vehicle gateway. Single-pair Ethernet keeps the TCU harness minimal in a module that is often space-constrained and mounted near the vehicle roof or windshield, where emissions budgets are strictest. The PHY's full-duplex 100BASE-T1 link carries diagnostic, OTA-update and infotainment traffic concurrently. Power-saving modes reduce standby drain on the always-connected battery rail - confirm the exact low-power mode set in the datasheet when dimensioning the sleep current budget of the vehicle.
推荐
Vehicle Gateway Modules
Central gateways aggregate CAN, LIN, FlexRay and Ethernet domains; the BCM89836A0BFBG adds cost-effective 100 Mbit/s single-pair Ethernet ports for camera, ADAS and infotainment branches without the cost of gigabit PHYs where bandwidth is unnecessary. Its DSP-based equalization and echo cancellation sustain reliable links over the cabling lengths typical of vehicle star topologies. When designing the gateway PCB, keep the MDI differential pair length-matched and impedance-controlled at 100 ohms, and place the magnetics close to the connector per the Broadcom reference design to preserve the module's EMC margins.
推荐
ADAS Sensor Networking
Radar, lidar and ultrasonic sensor clusters increasingly use 100BASE-T1 as their data backbone; the BCM89836A0BFBG offers the bandwidth needed for fused object data and diagnostic streams while keeping cabling to a single twisted pair. The automotive-oriented PHY family integrates the analog front end and clock recovery needed for robust links in the electrically noisy engine-bay and chassis environment, subject to compliance with the module's overall EMC test plan. Designers should validate link performance over the actual cable harness type and length, including connector discontinuities, during vehicle-level EMC and EMI testing.
推荐
Infotainment and Display Links
Head units, displays and audio amplifiers in the infotainment domain use 100 Mbit/s single-pair Ethernet for control and compressed audio/video transport. The BCM89836A0BFBG's single-pair interface simplifies the daisy-chained cabling between head unit and rear-seat displays, and its full-duplex 100 Mbit/s rate accommodates compressed streams plus control traffic. Because these modules are user-facing, electromagnetic emissions from the PHY and its magnetics must be checked against consumer-grade EMC limits as well as automotive requirements; follow the manufacturer reference layout for grounding of the MDI termination network.
推荐
Electric Vehicle Battery Management
EV battery management systems adopt 100BASE-T1 single-pair Ethernet as a daisy-chain communication layer between battery module controllers and the master BMS, replacing or complementing ring-type isolated serial buses. The BCM89836A0BFBG supplies the 100 Mbit/s physical layer with the low pair count and connector cost that high-cell-count packs require. Thermal design must account for the PHY's power dissipation inside sealed pack enclosures - verify junction-to-ambient thermal resistance in the datasheet and derate for the pack's maximum ambient. Confirm isolation strategy on the MDI side per the HV-safety requirements of the pack.
推荐
推荐产品汇总
工程参考数据： BCM89836A0BFBG ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | BCM89836A0BFBG (family variants - same package suffix BFBG) | BCM89836A0BFBG P3G (tape-and-reel ordering variant of same family code) |
|---|---|---|---|
| Brand | Broadcom Limited | Broadcom Limited | Broadcom Limited |
| Ethernet Standard | 100BASE-T1 | 100BASE-T1 | 100BASE-T1 |
| Data Rate | 100 Mbit/s | 100 Mbit/s | 100 Mbit/s |
| Media | Single unshielded twisted pair, full-duplex | Same | Same |
关键差异点
- Same-family drop-in substitutability （对比 BCM89836A0BFBG family variants)
- Highly integrated PHY SoC （对比 Discrete PHY + front-end solutions)
- Availability （对比 Scarce automotive PHYs)
设计说明
The 100BASE-T1 MDI pair is the most performance-critical net on the board. Route it as a tightly coupled differential pair with 100 ohm differential impedance, length-match the two traces, keep stubs out of the path, and place the magnetics/integrated connector within a few millimeters of the PHY MDI pins. Use a solid reference plane under the pair and avoid crossing plane splits. Follow the Broadcom reference schematic for the exact termination and decoupling network - single-pair PHY EMC results depend heavily on this network being reproduced faithfully.
Supply every PHY power pin per the official Broadcom datasheet pin map and decouple each pin with a local ceramic capacitor (typically 100 nF) with a bulk capacitor per rail near the regulator. Verify supply rail sequencing requirements before powering the PHY together with the host MAC. Because exact supply voltage values for the BCM89836A0BFBG are gated behind the NDA datasheet, confirm rails from the official document rather than from secondary listings before committing to a regulator choice.
Common failure modes with single-pair automotive Ethernet PHYs: (1) routing the MDI pair as two single-ended traces - this violates differential impedance and fails EMC; (2) substituting the magnetics with a non-qualified transformer - 100BASE-T1 termination differs from 100BASE-TX; (3) assuming software compatibility with other vendors' PHYs - PHY drivers and initialization sequences are vendor-specific; (4) skipping link validation over the real harness length. Validate each of these against the Broadcom reference design before design freeze.
合规信息
RoHS compliance stated on JLCPCB part page (C5595692). AEC-Q100 status not stated in verified data - marked not_applicable pending confirmation from official Broadcom documentation; obtain formal certificates from DigiKey/Mouser compliance downloads.
