DP83850CVF - 100Mb/s Ethernet Repeater | Texas Instruments
MPN: DP83850CVF ✓ نشطDP83850CVF نظرة عامة
An Ethernet repeater is a physical-layer network component that regenerates and forwards received Ethernet signals between network segments. It belongs to the Ethernet interface controller category, the Ethernet interface hierarchy, and ultimately the broader semiconductor and network interface product classes. Repeaters are used where signal integrity, segment extension, or centralized network topology requires an active Ethernet signal-conditioning function rather than a conventional packet-switching bridge.
The DP83850CVF operates from a single 4.75 V to 5.25 V supply and is listed at a supply current of 295 mA. Its principal data rate is 100 Mb/s. The 132-pin PQFP package provides 132 external connections for repeater, management, data, control, status, and power functions. It is offered in tray packaging according to the available component data, and distributor records identify it as a commercial-temperature-grade component.
Compared with a basic Ethernet transceiver, the DP83850CVF is specifically identified as a TX/T4 repeater interface controller. Its IEEE 802.3u compatibility indicates positioning for Fast Ethernet repeater applications rather than modern switched Ethernet ports. The device can therefore be useful in legacy industrial networking, embedded communication equipment, test systems, and installed infrastructure that retains 100 Mb/s repeater-based connections.
A key design consideration is that the DP83850CVF requires careful separation between high-speed signal routing, digital control interfaces, and the 5 V supply network. The exact pin names, termination requirements, and timing constraints must be taken directly from the manufacturer datasheet before layout because the supplied records do not expose a complete verified pin table. Magnetics, connector layout, controlled-impedance routing, and decoupling also remain system-level requirements for a dependable Ethernet physical-layer implementation.
This page consolidates the verified manufacturer and distributor information for the DP83850CVF, documents the uncertainty where detailed technical values are unavailable, and distinguishes genuine drop-in alternatives from related but potentially different-package Ethernet controllers. It is intended to support component identification and sourcing decisions without implying that unspecified electrical or pin-level details are interchangeable.
بدائل مباشرة لـ DP83850CVF — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
لا تتوفر بدائل متوافقة تمامًا لهذا المنتج.
اطلب بدائلDP83850CVF المواصفات
| Controller Type | Ethernet repeater interface controller |
| Supported Data Rate | 100 Mb/s |
| Repeater Mode | TX/T4 |
| الواجهة | Serial |
| Supply Voltage Range | 4.75 V to 5.25 V |
| تيار التغذية | 295 mA |
| Ethernet Standard | IEEE 802.3u |
| Package Type | 132-pin PQFP |
| Package Dimensions | 24.13 mm x 24.13 mm |
| Package Code | GQFP |
| Package Shape | Square |
| Terminal Form | Gull wing |
| Number of Terminals | 132 |
| Packaging | Tray |
| Temperature Grade | Commercial |
دليل تكوين أطراف DP83850CVF square
تكوين الأطراف لـ DP83850CVF (حزمة square). يتم تعريف ترقيم الأطراف والوظائف ومخططات التوصيل في ورقة البيانات الفنية من الشركة المصنعة. راجعها للحصول على البصمة الدقيقة وإرشادات اللحام.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ DP83850CVF.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
DP83850CVF مناسب لـ 6 التطبيقs: Legacy 100BASE-TX Repeater Equipment, Industrial Network Segment Extension, Embedded Communications Controller, Ethernet Protocol Test Equipment, Legacy Network Interface Cards, Installed Network Infrastructure Retrofit.
Legacy 100BASE-TX Repeater Equipment
The DP83850CVF fits legacy 100 Mb/s repeater equipment because it is identified as a 100 Mb/s TX/T4 repeater interface controller compatible with IEEE 802.3u operation. It can sit between Ethernet media interfaces and the repeater-management logic required by installed networking equipment. The verified 4.75 V to 5.25 V supply range supports conventional 5 V system rails, while the 295 mA supply-current figure provides an initial estimate for rail planning. The implementation must still follow the complete manufacturer datasheet for pin assignments, timing, termination, and magnetic-component requirements because those details are not included in the supplied records.
Industrial Network Segment Extension
The DP83850CVF can be evaluated for industrial systems that retain 100 Mb/s Ethernet repeater segments. Its 100 Mb/s data rate and IEEE 802.3u-compatible repeater function suit equipment designed around legacy Fast Ethernet timing rather than modern switched-port architectures. The single 5 V operating range and 295 mA listed current are important when planning supply capacity in a compact industrial controller. Because only commercial temperature grade is stated and the full temperature range is unavailable, environmental qualification must be confirmed before deployment in temperature-extreme or safety-related equipment.
Embedded Communications Controller
DP83850CVF may be used as the Ethernet physical-interface element in an embedded communications controller that requires TX/T4 repeater functionality rather than a standard integrated network transceiver. The serial interface and 132-terminal package expose substantially more connections than a conventional compact PHY, which can support dedicated repeater, control, status, and management functions. Designers should partition the board into analog signal, digital control, and supply regions and use the complete manufacturer layout guidance. The supplied evidence does not confirm integrated magnetics or a modern media-independent interface, so neither feature should be assumed.
Ethernet Protocol Test Equipment
The 100 Mb/s TX/T4 repeater interface can be relevant to protocol and network test equipment designed to reproduce or validate legacy Fast Ethernet repeater behavior. The DP83850CVF provides a manufacturer-specific repeater and management interface operating from a 4.75 V to 5.25 V supply. In such equipment, controlled signal routing, repeatable test fixtures, and isolated power domains are more important than package size alone. The 132-pin PQFP requires a fine-pitch land pattern and careful assembly, while the verified 295 mA supply-current figure should be included in test-fixture power budgeting.
Legacy Network Interface Cards
The DP83850CVF can be considered for legacy network interface cards whose system architecture requires a dedicated 100 Mb/s TX/T4 repeater controller. Its IEEE 802.3u compatibility and serial interface are consistent with equipment developed around repeater-based Fast Ethernet designs. The large 132-pin PQFP footprint makes it more appropriate for an established board architecture than for a new space-constrained portable product. Any migration to a newer controller should include verification of media support, management registers, timing, reset behavior, and power sequencing; the available cross-reference record does not prove those functions are interchangeable.
Installed Network Infrastructure Retrofit
DP83850CVF is relevant when maintaining or reproducing a specialized 100 Mb/s repeater subsystem in installed network infrastructure. The part's TX/T4 designation and IEEE 802.3u compatibility align it with legacy repeater behavior that modern switched Ethernet equipment may not reproduce directly. A retrofit program should begin with an exact board revision check, supplier traceability assessment, and manufacturer datasheet review. The verified 5 V supply range and 295 mA current simplify initial rail checks, but obsolete-interface risk cannot be resolved by electrical similarity alone and should be raised with the manufacturer during supply planning.
بيانات مرجعية هندسية لـ DP83850CVF — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Brand | Texas Instruments |
| Package | 132-pin PQFP, 24.13 mm x 24.13 mm |
| Controller Type | Ethernet repeater interface controller |
| Supported Data Rate | 100 Mb/s |
| Repeater Mode | TX/T4 |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Supply Current | 295 mA |
| Ethernet Compatibility | IEEE 802.3u |
| Terminal Count | 132 |
| Temperature Grade | Commercial |
أبرز الفروقات
- Dedicated TX/T4 repeater positioning (مقابلDP83860)
- Verified 132-pin PQFP implementation target (مقابلDP83865)
- IEEE 802.3u-compatible legacy Fast Ethernet role (مقابلDP83860)
ملاحظات التصميم
Treat the DP83850CVF as a high-pin-count mixed-signal Ethernet component and assign its 132 connections in separate functional groups for power, repeater data, management, control, status, and configuration. Keep the complete manufacturer land pattern and pin-1 orientation requirements unchanged. Do not create a substitute footprint from the generic description “132-pin PQFP,” because body size, lead pitch, exposed thermal features, and pad geometry must all be checked against the manufacturer drawing.
Budget the 5 V supply for at least the listed 295 mA operating current before adding margin for I/O load, startup, and temperature effects. The verified operating range is 4.75 V to 5.25 V, so a regulated rail with suitable transient response is required. Place bypass capacitors close to the device's supply and ground pins according to the manufacturer layout guidance; exact capacitance and ESR requirements were not present in the supplied records.
Preserve controlled-impedance routing for the 100 Mb/s repeater interfaces and avoid long stubs, unnecessary vias, and shared return paths with switching circuitry. Keep Ethernet traces away from noisy clocks and power-converter nodes where practical. The supplied records confirm a 100 Mb/s TX/T4 interface but do not specify trace-impedance targets, terminations, or isolation rules, so those values must come from the complete manufacturer reference design and Ethernet implementation guidance.
Do not treat DP83860 or DP83865 as drop-in replacements solely because a distributor describes them as active-pin-compatible. The supplied cross-reference record specifically warns engineers to verify timing, register mapping, and power sequencing, while the target uses a verified 132-pin PQFP package. Confirm the physical footprint, media support, management interface, reset behavior, timing margins, and supply requirements before replacing the DP83850CVF on an existing board.
معلومات الامتثال
The supplied distributor records identify commercial temperature grade but do not provide RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 declarations. AEC-Q100 is marked not_applicable because no automotive qualification is stated.
