DP83849CVS/NOPB - Dual-Port 10/100 Ethernet PHY | Texas Instruments
MPN: DP83849CVS/NOPB ✓ פעילDP83849CVS/NOPB סקירה
An Ethernet PHY is the physical-layer interface between a digital Ethernet controller and physical copper cabling. It converts digital MAC-layer symbols into electrical signaling and receives incoming signaling for conversion back into digital data. The DP83849C belongs to the PHY transceiver hierarchy, which supports Ethernet controllers, embedded systems, network switches, routers, industrial gateways, and other equipment requiring 10BASE-T or 100BASE-TX connectivity.
The principal features are two independent 10/100-Mbps ports, commercial-temperature operation, 3.3 V supply operation, and an 80-pin TQFP package. Its dual-port architecture helps reduce component count in equipment with multiple copper-network connections. A system designer can assign the two ports to separate links, for example connecting an internal endpoint to both a service network and an equipment network while maintaining independent media-access control paths.
The DP83849C integrates the analog physical-layer functions required for 10BASE-T and 100BASE-TX Ethernet, while the upper network interface remains the responsibility of the Ethernet MAC. This separation allows an embedded processor or dedicated network controller to handle packet processing while the PHY manages the copper-medium signaling. The resulting architecture is useful where a single controller must expose multiple network interfaces or where physical redundancy requires separate PHYs.
Typical applications include industrial Ethernet switches, embedded gateways, industrial control equipment, routers, network interface cards, remote monitoring systems, and dual-port embedded networking platforms. Because the device combines two 10/100-Mbps ports, it is particularly appropriate where two copper links must be accommodated without using two separate PHY packages. Industrial equipment can also benefit from the commercial 0 to 70 °C operating range when that range matches the enclosure environment.
The primary design consideration is that PHY implementation requires correct support-network connections, appropriate magnetics or coupling networks, controlled board layout, and a compatible Ethernet MAC interface. Review the manufacturer's pin description and application schematics before assigning every signal. Decoupling should be placed directly at the supply pins, and the high-speed or magnetics-related copper routing should follow the reference layout because incorrect impedance and return-path discontinuities can cause link failures or electromagnetic-interference issues.
This product page combines the official device identity, ordering information, distributor listings, and cross-reference findings with practical implementation guidance. It distinguishes verified commercial-grade characteristics from unreported parameters and focuses replacement analysis on same-footprint candidates, helping engineers assess fit before committing to a PCB, temperature grade, or supported data rate.
חלופות תחליף ישיר עבור DP83849CVS/NOPB — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
DP83849IVS/NOPB
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DP83849CVS
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DP83849IFVS/NOPB
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DP83849CVS/NOPB מפרטים
| Product Type | Dual-port 10/100-Mbps Ethernet PHY transceiver |
| Number of Ports | 2 ports |
| Supported Ethernet Data Rates | 10 Mbps and 100 Mbps |
| Nominal Supply Voltage | 3.3 V |
| Specified Supply Range | 3 V to 3.6 V |
| Commercial Temperature Range | 0 °C to 70 °C |
| מארז | 80-pin TQFP (PFC) |
| Package Dimensions | 12 mm × 12 mm |
| Package Body Size | 12 mm × 12 mm |
| סוג הרכבה | Surface mount |
| Number of Terminals | 80 terminals |
| Transceiver Channels | 2 channels |
| Temperature Grade | Commercial |
| Ethernet Physical Layer | 10/100 Ethernet PHY |
| Lead-Free / NOPB Designation | NOPB configuration |
מדריך תצורת פינים של DP83849CVS/NOPB 12 mm × 12 mm
תצורת פינים עבור DP83849CVS/NOPB (מארזת 12 mm × 12 mm). מספרי פינים, פונקציות ותרשימי חיבורים מוגדרים ב-Datasheet של היצרן. יש לעיין בו לקבלת ה-footprint המדויק והנחיות הלחמה.
אין נתוני פריסת פינים מפורטים עבור DP83849CVS/NOPB.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
DP83849CVS/NOPB מתאים עבור 6 יישוםs: Dual-Port Industrial Ethernet Gateway, Embedded Network Interface Card, Commercial-Temperature Ethernet Switch, Remote Monitoring and Control Terminal, Industrial Router with Service Uplink, Industrial Equipment Network Backplane.
Dual-Port Industrial Ethernet Gateway
The DP83849CVS/NOPB fits a gateway that must present two independent 10/100-Mbps copper-network connections while retaining a commercial 0 to 70 °C operating range. Its two PHY channels in one 80-pin TQFP device can simplify board partitioning compared with two separate single-port PHYs. Place the Ethernet magnetics and support-network components close to the corresponding PHY pins, and follow the manufacturer's reference layout for impedance-controlled traces and grounding. The controller must also support the device's host-side interface and required operating modes. Because the package concentrates two channels in a 12 mm by 12 mm outline, enclosure temperature and self-heating should be checked during worst-case load testing.
מומלץ
Embedded Network Interface Card
DP83849CVS/NOPB can provide the physical layer for an embedded network interface card that requires two 10/100-Mbps links. One port may connect an embedded controller to a local network, while the second supports an uplink, management path, or redundant connection. The dual-port arrangement reduces the number of PHY packages required for a two-link interface, although the Ethernet MAC must still control both channels. Use controlled-impedance routing, suitable isolation or coupling components, and the reference network values from the manufacturer documentation. Confirm that the final commercial-temperature rating covers both the ambient enclosure temperature and temperature rise near the device.
מומלץ
Commercial-Temperature Ethernet Switch
The DP83849CVS/NOPB is appropriate for a small commercial-temperature Ethernet switch in which two 10/100-Mbps copper ports are required. It handles the physical-layer signaling for each link, while a switch controller performs frame forwarding and port management. The 80-pin TQFP package supports compact placement, but careful decoupling and magnetics placement remain important because both channels operate in close proximity. Route each channel as a controlled-impedance structure and maintain the recommended return path beneath the differential pairs. Validate the assembly across link-up, cable insertion, and disconnect events to ensure that the two channels remain stable under realistic network transients.
מומלץ
Remote Monitoring and Control Terminal
DP83849CVS/NOPB can serve a remote monitoring terminal that needs separate local-network and maintenance-network connections. Its two 10/100-Mbps ports allow the system to isolate operational traffic from a service link while avoiding two separate PHY packages. The commercial 0 to 70 °C range suits indoor equipment whose enclosure remains within that interval. Because this application often uses long industrial cables, test conducted and radiated emissions with the final magnetics, chassis, cable, and enclosure. Use the manufacturer's supported-network configuration and protect externally accessible interfaces according to the equipment's surge and isolation requirements.
מומלץ
Industrial Router with Service Uplink
DP83849CVS/NOPB is suitable for an industrial router with one 10/100-Mbps LAN port and one service or uplink port. The dual-channel PHY provides matched network connectivity for both links while keeping the component count below a two-PHY implementation. The device's commercial temperature grade is appropriate only when the router's internal and ambient temperatures remain within 0 to 70 °C; otherwise, select an industrial-temperature member after full compatibility verification. Keep the Ethernet magnetics close to the PHY and maintain symmetrical differential routing. Review grounding and isolation carefully when either copper port connects outside the controlled equipment enclosure.
מומלץ
Industrial Equipment Network Backplane
DP83849CVS/NOPB can connect production equipment to a dual-port Ethernet backplane or service network when redundant-path capability is required. Two separate PHY channels allow the controller to maintain distinct links to primary and secondary infrastructure, although protocol-level redundancy must be implemented by the host. The 10/100-Mbps rates match legacy and cost-sensitive industrial Ethernet segments where gigabit performance is unnecessary. Validate hot-plug behavior, link-flap recovery, and cable faults with the production magnetics. The 0 to 70 °C rating also requires a thermal check because industrial cabinets can exceed the ambient rating even when the equipment is not direct-heated.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DP83849CVS/NOPB — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | DP83849IVS/NOPB | DP83849CVS | DP83849IFVS/NOPB |
|---|---|---|---|---|
| Package | 80-pin TQFP | 80-pin TQFP | 80-pin TQFP | 80-pin TQFP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Ethernet Ports | 2 ports | 2 ports | 2 ports | 2 ports |
| Supported Data Rate | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface mount |
| Product Type | Dual-port Ethernet PHY transceiver | Dual-port Ethernet PHY transceiver | Dual-port Ethernet PHY transceiver | Dual-port Ethernet PHY transceiver |
| Orderable Suffix | CVS/NOPB | IVS/NOPB | CVS | IFVS/NOPB |
מבדילים עיקריים
- Two Ethernet channels in one 80-pin TQFP package (לעומתDP83849CVS)
- Commercial-temperature operation is explicitly confirmed (לעומתDP83849IVS/NOPB)
- Defined dual-port 10/100-Mbps physical-layer configuration (לעומתDP83849IFVS/NOPB)
הערות תכנון
Place the Ethernet magnetics or required coupling network and support components close to the corresponding PHY channel. Maintain symmetric differential routing, controlled impedance, and a continuous return path beneath the pair. Avoid vias, test pads, and abrupt geometry changes in the Ethernet traces where practical. Review the manufacturer's reference schematic and layout because the two channels in the 80-pin TQFP package make isolation between ports and correct grounding especially important.
Provide local 3.3 V decoupling directly at the device supply pins and keep the supply-return path continuous. Use the manufacturer-specified capacitance, voltage rating, and dielectric requirements, and account for the tolerance of the installed capacitors. Validate the rail during simultaneous operation of both 10/100-Mbps channels so that link activity does not produce unacceptable supply disturbance or unintended resets.
Calculate the worst-case internal temperature using the measured enclosure temperature and the heat contribution from both active channels. The DP83849CVS/NOPB is rated from 0 °C to 70 °C, so a design close to the upper limit may require airflow, a lower ambient specification, copper spreading, or an industrial-temperature alternative. Validate the populated enclosure under sustained full-rate traffic rather than relying only on a board-level thermal estimate.
Do not treat the shortened DP83849CVS family name as proof that every suffix is interchangeable. Compare temperature grade, lead-free status, exact package drawing, reserved pins, exposed connections, media support, reset behavior, and register requirements. A replacement should be marked as drop-in only after continuity and functional checks are completed on the production PCB, particularly when either Ethernet port connects to external cabling.
מידע על תאימות
The NOPB suffix identifies the ordering code but does not, by itself, establish every compliance declaration. The confirmed commercial-temperature grade is not an automotive qualification.
