DP83848KSQ/NOPB - 10/100 Ethernet PHY, WQFN-40 | Texas Instruments
Référence : DP83848KSQ/NOPB ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.2 | $7,20 |
| 10 | $6.45 | $64,50 |
| 100 | $5.1 | $510,00 |
| 500 | $4.2 | $2 100,00 |
| 1 000 | $3.55 | $3 550,00 |
DP83848KSQ/NOPB Présentation
An Ethernet PHY is the physical layer transceiver that interfaces between a digital MAC (Media Access Controller) and the physical twisted-pair cable. It handles encoding, serialization, line driving, and reception of Ethernet frames. The DP83848x family belongs to the PHYTER series, within the broader hierarchy of Ethernet interface ICs -> network interface ICs -> communication interface ICs -> integrated circuits.
Key features include Auto-MDIX for automatic crossover detection, eliminating the need for crossover cables. The device supports both 10BASE-T and 100BASE-TX with performance exceeding IEEE specifications, including operation beyond 137 meters of Cat-V cable. It offers low power consumption and a small footprint suitable for space-constrained designs, with industrial temperature support from -40C to +85C.
The DP83848K integrates a digital adaptive equalizer, echo canceller, and baseline wander correction to ensure reliable data transmission. The device includes an MDIO serial management interface for configuration and status monitoring, with support for dynamic control of Auto-MDIX and LED indicators. The architecture is built on a low-power 3.3V CMOS process, achieving IEEE 802.3u compliance.
Typical applications include industrial control systems, embedded networking, IP cameras, IoT gateways, factory automation controllers, and building automation. The industrial temperature range makes it suitable for harsh environments such as outdoor enclosures, machine-to-machine communication, and test equipment with extended thermal requirements.
When designing with this PHY, ensure proper isolation transformer selection and 50 ohm termination resistors for the magnetics interface. Careful PCB layout is required to minimize EMI and maintain signal integrity on the differential pairs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour DP83848KSQ/NOPB — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec DP83848KSQ/NOPB (même facteur de forme et même empreinte) — différant par Data Rate, MAC Interface, Operating Temperature, Package, Product Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DP83848JSQ/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DP83848QSQE/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DP83848TSQ/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DP83848KSQ/NOPB Spécifications
| Product Type | Ethernet PHY Transceiver |
| Débit de données | 10/100 Mbps |
| Tension d'alimentation | 3.0 V to 3.6 V |
| Température de fonctionnement | -40C to +85C |
| Type d'interface | MII / RMII |
| Number of Ports | 1 |
| Boîtier | WQFN-40 (6x6 mm) |
| Type de montage | Surface Mount |
| Auto-MDIX | Yes |
| Standards Compliance | IEEE 802.3u |
| Cable Reach | Beyond 137 m (Cat-V) |
| Niveau MSL | 3 |
| Statut RoHS | Compliant |
| Lead Free | Yes |
| MAC Interface | MII / RMII / SNI |
Configuration des broches de DP83848KSQ/NOPB
| Broche 1 | TXOP — Differential transmit output positive |
| Broche 2 | TXON — Differential transmit output negative |
| Broche 3 | RXIP — Differential receive input positive |
| Broche 4 | RXIN — Differential receive input negative |
| Broche 5 | VDD33A — Analog 3.3V supply |
| Broche 6 | VSS33A — Analog ground |
| Broche 7 | LED_LINK — Link status LED indicator |
| Broche 8 | LED_SPEED — Speed status LED indicator |
| Broche 9 | LED_ACT — Activity LED indicator |
| Broche 10 | MDIO — Management data I/O |
| Broche 11 | MDC — Management data clock |
| Broche 12 | RESET — Hardware reset (active low) |
| Broche 13 | TX_CLK — MII transmit clock |
| Broche 14 | TX_EN — MII transmit enable |
| Broche 15 | TXD0 — MII transmit data 0 |
| Broche 16 | TXD1 — MII transmit data 1 |
| Broche 17 | TXD2 — MII transmit data 2 |
| Broche 18 | TXD3 — MII transmit data 3 |
| Broche 19 | RX_CLK — MII receive clock |
| Broche 20 | RX_DV — MII receive data valid |
| Broche 21 | RXD0 — MII receive data 0 |
| Broche 22 | RXD1 — MII receive data 1 |
| Broche 23 | RXD2 — MII receive data 2 |
| Broche 24 | RXD3 — MII receive data 3 |
| Broche 25 | RX_ER — MII receive error |
| Broche 26 | CRS — Carrier sense |
| Broche 27 | COL — Collision detected |
| Broche 28 | VDD33D — Digital 3.3V supply |
| Broche 29 | VSS33D — Digital ground |
| Broche 30 | XI — Crystal oscillator input |
| Broche 31 | XO — Crystal oscillator output |
| Broche 32 | NC — Not connected (per datasheet) |
| Broche 33 | NC — Not connected (per datasheet) |
| Broche 34 | NC — Not connected (per datasheet) |
| Broche 35 | NC — Not connected (per datasheet) |
| Broche 36 | NC — Not connected (per datasheet) |
| Broche 37 | NC — Not connected (per datasheet) |
| Broche 38 | NC — Not connected (per datasheet) |
| Broche 39 | NC — Not connected (per datasheet) |
| Broche 40 | PAD — Exposed thermal pad (ground) |
Applications typiques
DP83848KSQ/NOPB convient pour 6 applications: Industrial Ethernet Controllers, IP Cameras and Surveillance, IoT Gateways and Edge Devices, Building Automation Systems, Test and Measurement Equipment, Embedded Networking Modules.
Industrial Ethernet Controllers
The DP83848KSQ/NOPB is ideal for industrial Ethernet controllers requiring robust 10/100 Mbps connectivity on factory floors. Its industrial temperature range of -40C to +85C, Auto-MDIX support, and cable reach beyond 137 m of Cat-V make it well-suited for PLCs, motor drives, and industrial gateways. The WQFN-40 footprint fits compact embedded designs, while the MII/RMII interface connects to common industrial MCUs like TI's Sitara and ST's STM32. The device's adaptive equalizer and baseline wander correction ensure reliable data transmission in electrically noisy factory environments with motor drives and switching power supplies nearby.
Recommandé
IP Cameras and Surveillance
The DP83848KSQ/NOPB provides reliable 10/100 Mbps Ethernet connectivity for IP cameras and surveillance equipment. Its low power consumption extends PoE budget headroom for powered devices, while the Auto-MDIX feature simplifies installation regardless of cable type used. The PHY's robust EMI margin from integrated adaptive equalization and echo cancellation ensures stable video streaming even with marginal cable installations. For outdoor PoE cameras operating in -40C to +85C environments, the industrial temperature rating is essential. The WQFN-40 package allows compact camera housing designs while maintaining signal integrity on the MII interface to the image processor SoC.
Recommandé
IoT Gateways and Edge Devices
The DP83848KSQ/NOPB enables wired Ethernet backhaul for IoT gateways and edge devices that aggregate sensor data from multiple wireless nodes. The MII/RMII interface is compatible with common IoT processors, and the Auto-Negotiation feature automatically selects the highest link speed. The PHY's small 6x6 mm WQFN-40 footprint is critical for compact gateway enclosures, while its industrial temperature range supports outdoor and factory deployments. Combined with the 3.3V single-supply operation, the DP83848K simplifies power tree design in battery-backed edge nodes that occasionally connect to wired infrastructure for firmware updates and bulk data transfer.
Recommandé
Building Automation Systems
The DP83848KSQ/NOPB integrates into building automation systems including BACnet/IP controllers, HVAC smart thermostats, and access control panels requiring reliable wired Ethernet. Its industrial temperature grade ensures operation in unconditioned spaces like electrical closets and outdoor panels. The Auto-MDIX feature eliminates cabling errors during installation, reducing commissioning time and field service calls. The PHY's 264 mW typical active power consumption is acceptable for always-on building automation devices. The MII interface supports legacy building automation MCUs, while the device's compliance with IEEE 802.3u ensures interoperability with commercial Ethernet switches used in building management systems.
Recommandé
Test and Measurement Equipment
The DP83848KSQ/NOPB suits test and measurement equipment that requires deterministic Ethernet connectivity for remote control, data acquisition, and lab instrumentation networking. The PHY's MDIO management interface allows real-time link status monitoring, which is critical for test systems that need to detect cable faults or link degradation. The -40C to +85C industrial temperature rating supports lab and production floor environments. The 100 Mbps speed is sufficient for most test data uploads, and the WQFN-40 footprint allows integration into compact bench instruments. The device's cable reach beyond 137 m provides flexibility in test rack layouts across large laboratory spaces.
Recommandé
Embedded Networking Modules
The DP83848KSQ/NOPB is used in embedded networking modules such as SOM (System on Module) Ethernet companion chips and industrial router modules. Its single-port 10/100 capability and MII/RMII flexibility allow connection to various host processors in modular designs. The small WQFN-40 package enables compact module form factors while the industrial temperature rating supports harsh deployment scenarios. Combined with its low BOM requirements (only external magnetics and termination resistors), the DP83848K minimizes total system cost for high-volume embedded networking products. The PHY's proven interoperability ensures seamless connection with switches and routers in industrial networks.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DP83848KSQ/NOPB — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DP83848JSQ/NOPB | DP83848QSQE/NOPB | DP83848TSQ/NOPB | DP83848CVVX/NOPB |
|---|---|---|---|---|---|
| Package | WQFN-40 (6x6 mm) | WQFN-40 (6x6 mm) - same | WQFN-40 (6x6 mm) - same | WQFN-40 (6x6 mm) - same | LQFP-48 - different |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Operating Temperature | -40C to +85C | 0C to +70C (commercial) | -40C to +105C (extended) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Data Rate | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
| Supply Voltage | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V |
| Auto-MDIX | Yes | Yes | Yes | Yes | Yes |
| MAC Interface | MII / RMII | MII / RMII | MII / RMII | MII / RMII | MII / RMII |
| Integrated Termination | No (external) | No (external) | No (external) | Yes (internal) | No (external) |
Principaux différenciateurs
- Industrial temperature grade (vs DP83848JSQ/NOPB)
- Standard 40-pin WQFN footprint (vs DP83848HSQ/NOPB)
- No integrated termination (vs DP83848TSQ/NOPB)
Notes de conception
Route the MII/RMII traces between the MAC and PHY as short as possible with matched lengths (within 50 mil for MII). Keep digital traces away from the analog TX/RX differential pairs and use a continuous ground plane under the MII bus. Place the 25 MHz crystal within 5 mm of the XI/XO pins with short traces and guard ring to ground. Decouple each VDD33A and VDD33D pin with a 0.1uF ceramic capacitor placed within 2 mm of the pin.
Do not omit the center-tap capacitors on the magnetics; these are required for proper PHY operation. Verify the isolation transformer ratio (1:1) matches the DP83848K requirements. Some early designs failed because designers used 1CT:1CT instead of 1:1 center-tapped magnetics. Also ensure proper 50 ohm termination on the cable-side differential pairs with appropriate common-mode termination to prevent reflections.
Maintain 100 ohm differential impedance on the TX and RX pairs routed to the magnetics. Use AC-coupling capacitors (0.1uF) on each differential pair if required by the magnetics vendor. Keep these traces symmetric and avoid crossing split ground planes. For EMI reduction, add common-mode chokes at the RJ45 connector side of the magnetics.
Informations de conformité
RoHS and REACH compliant per TI product page. Not AEC-Q100 qualified - this is an industrial-grade PHY, not automotive grade.
