DP83848KSQ/NOPB - 10/100 Ethernet PHY, WQFN-40 | Texas Instruments
N.º da peça: DP83848KSQ/NOPB ✓ Ativo| Qtd. | Preço unitário | 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 Visão geral
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.
Alternativas drop-in para DP83848KSQ/NOPB — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com DP83848KSQ/NOPB (mesmo formato e footprint) — diferindo em Data Rate, MAC Interface, Operating Temperature, Package, Product Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DP83848JSQ/NOPB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DP83848QSQE/NOPB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DP83848TSQ/NOPB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DP83848KSQ/NOPB Especificações
| Product Type | Ethernet PHY Transceiver |
| Taxa de dados | 10/100 Mbps |
| Tensão de alimentação | 3.0 V to 3.6 V |
| Temperatura de operação | -40C to +85C |
| Tipo de interface | MII / RMII |
| Number of Ports | 1 |
| Encapsulamento | WQFN-40 (6x6 mm) |
| Tipo de montagem | Surface Mount |
| Auto-MDIX | Yes |
| Standards Compliance | IEEE 802.3u |
| Cable Reach | Beyond 137 m (Cat-V) |
| Nível MSL | 3 |
| Status RoHS | Compliant |
| Lead Free | Yes |
| MAC Interface | MII / RMII / SNI |
Configuração de pinos do DP83848KSQ/NOPB
| Pino 1 | TXOP — Differential transmit output positive |
| Pino 2 | TXON — Differential transmit output negative |
| Pino 3 | RXIP — Differential receive input positive |
| Pino 4 | RXIN — Differential receive input negative |
| Pino 5 | VDD33A — Analog 3.3V supply |
| Pino 6 | VSS33A — Analog ground |
| Pino 7 | LED_LINK — Link status LED indicator |
| Pino 8 | LED_SPEED — Speed status LED indicator |
| Pino 9 | LED_ACT — Activity LED indicator |
| Pino 10 | MDIO — Management data I/O |
| Pino 11 | MDC — Management data clock |
| Pino 12 | RESET — Hardware reset (active low) |
| Pino 13 | TX_CLK — MII transmit clock |
| Pino 14 | TX_EN — MII transmit enable |
| Pino 15 | TXD0 — MII transmit data 0 |
| Pino 16 | TXD1 — MII transmit data 1 |
| Pino 17 | TXD2 — MII transmit data 2 |
| Pino 18 | TXD3 — MII transmit data 3 |
| Pino 19 | RX_CLK — MII receive clock |
| Pino 20 | RX_DV — MII receive data valid |
| Pino 21 | RXD0 — MII receive data 0 |
| Pino 22 | RXD1 — MII receive data 1 |
| Pino 23 | RXD2 — MII receive data 2 |
| Pino 24 | RXD3 — MII receive data 3 |
| Pino 25 | RX_ER — MII receive error |
| Pino 26 | CRS — Carrier sense |
| Pino 27 | COL — Collision detected |
| Pino 28 | VDD33D — Digital 3.3V supply |
| Pino 29 | VSS33D — Digital ground |
| Pino 30 | XI — Crystal oscillator input |
| Pino 31 | XO — Crystal oscillator output |
| Pino 32 | NC — Not connected (per datasheet) |
| Pino 33 | NC — Not connected (per datasheet) |
| Pino 34 | NC — Not connected (per datasheet) |
| Pino 35 | NC — Not connected (per datasheet) |
| Pino 36 | NC — Not connected (per datasheet) |
| Pino 37 | NC — Not connected (per datasheet) |
| Pino 38 | NC — Not connected (per datasheet) |
| Pino 39 | NC — Not connected (per datasheet) |
| Pino 40 | PAD — Exposed thermal pad (ground) |
Aplicações típicas
DP83848KSQ/NOPB é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DP83848KSQ/NOPB — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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) |
Principais diferenciais
- Industrial temperature grade (vs DP83848JSQ/NOPB)
- Standard 40-pin WQFN footprint (vs DP83848HSQ/NOPB)
- No integrated termination (vs DP83848TSQ/NOPB)
Notas de projeto
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.
Informações de conformidade
RoHS and REACH compliant per TI product page. Not AEC-Q100 qualified - this is an industrial-grade PHY, not automotive grade.
