DP83848VYB/NOPB - 10/100 Ethernet PHY | Texas Instruments
MPN: DP83848VYB/NOPB ✓ פעילDP83848VYB/NOPB סקירה
An Ethernet PHY is the physical-layer component that converts digital frames exchanged with a network controller into electrical signals carried over twisted-pair Ethernet. A single-port 10/100 PHY provides both 10 Mb/s and 100 Mb/s links through auto-negotiation, allowing the connected equipment and network switch to select a common operating speed. The DP83848VYB/NOPB also supports IEEE 802.3 parallel detection for links that cannot perform the complete negotiation sequence.
The PHY supports MII and RMII host interfaces, JTAG test access, and integrated physical-layer functions for copper Ethernet. Its advertised supply current is 92 mA, while the 3.0 V to 3.6 V operating range supports conventional 3.3 V equipment. The exposed thermal pad improves heat transfer from the 48-pin LQFP package, an important consideration in compact industrial systems with sustained 100 Mb/s activity.
Compared with the standard-temperature DP83848YB/NOPB, the VYB variant extends the operating range to +105°C. The DP83848VYB/NOPB product family provides a practical migration path for designs requiring a higher temperature rating while retaining a 48-LQFP exposed-pad footprint and the same fundamental 10/100 Ethernet architecture. Pin-level substitution still requires comparison of device strapping, termination, interface timing, and exposed-pad requirements in the manufacturer datasheet.
Typical uses include industrial Ethernet controllers, embedded data-acquisition equipment, factory automation nodes, building controls, communication modules, and embedded Linux systems. RMII is useful when the host processor needs a compact parallel bus, while MII offers additional signaling and test options for designs whose host interface and board requirements favor that configuration.
PCB implementation should preserve the manufacturer’s prescribed 50-ohm differential trace geometry, component spacing, isolation-divider layout, magnetics placement, and exposed-pad thermal-via pattern. Place network magnetics near the cable and PHY side of the board, keep sensitive signals away from high-energy transient paths, and provide filtering appropriate to the required surge and ESD immunity.
This product overview combines the manufacturer’s electrical and environmental specifications with practical PCB, thermal, sourcing, and substitution guidance. It helps engineers evaluate the DP83848VYB/NOPB for extended-temperature copper-Ethernet designs and compare documented same-manufacturer family options without overlooking interface and layout constraints.
חלופות תחליף ישיר עבור DP83848VYB/NOPB — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
DP83848YB/NOPB
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DP83848IVV/NOPB
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DP83848EVVX/NOPB
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DP83848VYB/NOPB מפרטים
| Product Type | Single-port 10/100 Mb/s Ethernet PHY transceiver |
| Ethernet Data Rate | 10 Mb/s to 100 Mb/s |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Typical Supply Current | 92 mA |
| טווח טמפרטורת פעולה | -40°C to +105°C |
| Host Interface | MII or RMII parallel interface |
| Auto-Negotiation | IEEE 802.3 10 Mb/s and 100 Mb/s |
| Parallel Detection | Supported according to IEEE 802.3 |
| JTAG Support | Supported |
| Number of Ports | 1 port |
| Package Type | 48-LQFP with exposed pad |
| Package Body Size | 7 mm x 7 mm |
| מספר פינים | 48 pins |
| סוג הרכבה | Surface mount |
| Power Class | Low-power Ethernet PHY |
| Media Type | Copper twisted-pair Ethernet |
מדריך תצורת פינים של DP83848VYB/NOPB 7 mm x 7 mm
תצורת פינים עבור DP83848VYB/NOPB (מארזת 7 mm x 7 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 DP83848VYB/NOPB.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
DP83848VYB/NOPB מתאים עבור 6 יישוםs: Industrial Ethernet Controller, Factory Automation Sensor Gateway, Building and HVAC Network Equipment, Embedded Linux Network Appliance, Data Acquisition and Test Equipment, Communication and Network Modules.
Industrial Ethernet Controller
The DP83848VYB/NOPB fits industrial Ethernet controllers that require a 10/100 Mb/s copper link and operation from -40°C to +105°C. Place the PHY between the host processor and an Ethernet magnetic interface, using either RMII for a compact bus or MII where the host design requires its broader legacy signals. The 3.0 V to 3.6 V supply range and 92 mA typical supply current fit conventional 3.3 V embedded systems. Preserve the manufacturer’s 50-ohm differential routing, isolation-divider spacing, and exposed-pad thermal-via pattern so high-speed receive signals remain isolated from noisy power and switching paths.
מומלץ
Factory Automation Sensor Gateway
The DP83848VYB/NOPB is appropriate for factory automation gateways that combine controller electronics with 10/100 Mb/s Ethernet connectivity. Its extended -40°C to +105°C rating supports equipment installed outside climate-controlled areas, while auto-negotiation and IEEE 802.3 parallel detection simplify connection to 10 Mb/s and 100 Mb/s industrial networks. The RMII interface can reduce host pin requirements when the processor supports it. Use short, impedance-controlled differential routes, position the magnetics close to the connector, and keep switching-regulator paths away from the PHY’s analog and receive circuitry to limit noise coupling.
מומלץ
Building and HVAC Network Equipment
The DP83848VYB/NOPB supports controllers for building automation, HVAC equipment, and environmental monitoring systems that need a reliable copper-Ethernet uplink. Its 10/100 Mb/s capability covers legacy control networks and modern management links, while the -40°C to +105°C range helps accommodate equipment near heat sources or outside heated enclosures. The 3.0 V to 3.6 V operating range aligns with 3.3 V controller boards. Follow the datasheet layout for clock, power, and isolation components, and validate conducted and radiated emissions because Ethernet magnetics and external power converters can create coupling paths not addressed by the PHY alone.
מומלץ
Embedded Linux Network Appliance
The DP83848VYB/NOPB can provide the physical layer for embedded Linux gateways, edge computers, and remote-access appliances using a 10/100 Mb/s copper uplink. RMII is a practical choice for compact processor-based platforms because it reduces the number of host-side signals, while MII remains available for designs optimized around that interface. The 3.3 V class supply range and 92 mA typical current fit embedded power budgets. Validate Linux driver support for the selected PHY, preserve the manufacturer’s strap and timing requirements, and provide a thermal path through the exposed pad and ground-via array.
מומלץ
Data Acquisition and Test Equipment
The DP83848VYB/NOPB is suitable for laboratory instruments and data-acquisition systems that transfer measurement data over 10/100 Mb/s Ethernet. MII can suit older instrument-control architectures, while RMII supports compact modern controllers. The extended temperature range provides margin for equipment exposed to warm internal compartments, and the PHY’s parallel-detection support handles networks that cannot complete full auto-negotiation. Keep the receiver path isolated from high-voltage switching stages, follow the prescribed differential-impedance geometry, and check jitter, link establishment, and error performance across both 10 Mb/s and 100 Mb/s modes.
מומלץ
Communication and Network Modules
The DP83848VYB/NOPB works well in compact communication modules that expose a 10/100 Mb/s Ethernet interface to a local controller or embedded processor. Its low-power PHY architecture, selectable MII or RMII interface, and extended-temperature capability support communications equipment deployed across industrial environments. The 48-LQFP exposed-pad package allows integration without a large connector footprint, although careful exposed-pad cooling is required. Follow the reference layout for magnetic-side isolation, implement the recommended bypass network, and separate Ethernet differential pairs from clocks, high-speed digital interfaces, and power-converter switching nodes.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DP83848VYB/NOPB — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | DP83848YB/NOPB | DP83848IVV/NOPB | DP83848EVVX/NOPB |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-LQFP-EP (7x7) | 48-LQFP-EP (7x7) | 48-LQFP-EP (7x7) | 48-LQFP-EP (7x7) |
| Ethernet Data Rate | 10 Mb/s to 100 Mb/s | 10 Mb/s to 100 Mb/s | 10 Mb/s to 100 Mb/s | 10 Mb/s to 100 Mb/s |
| Number of Ports | 1 port | 1 port | 1 port | 1 port |
מבדילים עיקריים
- Extended-temperature operation (לעומתDP83848YB/NOPB)
- Temperature margin for compact embedded systems (לעומתDP83848IVV/NOPB)
- Single-port 10/100 Ethernet with selectable host interface (לעומתDP83848EVVX/NOPB)
הערות תכנון
Follow the manufacturer reference layout for the 100-ohm differential TX and RX pairs, including controlled geometry, symmetrical routing, and the specified isolation spacing around the magnetic interface. Place the Ethernet magnetics close to the connector or cable entry, and keep the isolation-divider network positioned as directed by the datasheet. These details minimize impedance discontinuities, common-mode conversion, and ESD-current paths that can disrupt link training.
Use the exposed pad as both a ground connection and a thermal path. Follow the recommended pad geometry and place multiple thermal vias between the exposed pad and ground planes to reduce spreading resistance. Keep the PHY away from regulators and other concentrated heat sources when possible. Validate the final board at the maximum enclosure temperature and worst-case 100 Mb/s traffic because the component’s -40°C to +105°C rating does not replace a complete system thermal design.
Implement the manufacturer-recommended supply decoupling with the prescribed capacitor types and placement directly at the relevant power pins. Keep the 3.0 V to 3.6 V supply within tolerance at the die, including transient margin, and route return currents continuously. Avoid sharing narrow supply paths between the PHY, processor, and switching circuitry. Confirm startup, power-down, and brownout behavior in the system because Ethernet link timing must remain compatible with the host controller.
Do not treat a shared 48-LQFP footprint as proof of an unconditional pin-for-pin replacement. Compare strap resistors, clock source requirements, LED outputs, interrupt behavior, interface timing, reset configuration, and device-specific functions in the exact datasheets. When moving from DP83848VYB/NOPB to a related PHYTER-family device, review the PCB differences introduced by the ordering suffix and verify the new boot and link behavior on hardware.
מידע על תאימות
The DP83848VYB/NOPB is an industrial-temperature Ethernet PHY rather than an AEC-Q100 automotive-qualified device. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations should be confirmed from the current manufacturer product documentation before regulatory submission.
