Overview
The Texas Instruments DP83848YBX/NOPB is an extended temperature, 10/100-Mbps Ethernet PHY transceiver designed to meet the demands of harsh environments. This device is part of the PHYTER™ family of Ethernet transceivers, known for their high performance and flexibility. It operates over a wide temperature range from –40°C to 105°C, making it suitable for applications in wireless remote base stations, automotive/transportation, and industrial control systems. The DP83848YBX/NOPB features low-power consumption, enhanced ESD protection, and multiple interface options, including MII and RMII, to ensure maximum flexibility in system design.
Key Specifications
| Parameter | Description |
|---|---|
| Temperature Range | –40°C to 105°C |
| Technology | Low-Power 3.3-V, 0.18-μm CMOS |
| Power Consumption | < 270 mW Typical |
| MAC Interface | 3.3-V |
| Auto-MDIX | For 10/100 Mb/s |
| Energy Detection Mode | Supported |
| Clock Output | 25-MHz |
| SNI Interface | Configurable |
| RMII Interface | Configurable, Rev. 1.2 |
| MII Serial Management Interface | MDC and MDIO |
| JTAG Support | IEEE 1149.1 |
| Package | HLQFP (PTB) with 48 pins |
Key Features
- Enhanced ESD protection for robust operation in harsh environments.
- Configurable MII or RMII interface for flexibility in MPU selection.
- Auto-MDIX for automatic detection and configuration of the Ethernet cable.
- Energy detection mode to optimize power consumption.
- 25-MHz clock output for system synchronization.
- Programmable LED support for link, 10/100 Mb/s mode, activity, duplex, and collision detection.
- Single register access for complete PHY status.
- 10/100 Mb/s packet BIST (Built-in Self Test) for diagnostic purposes.
- Integrated ANSI X3.263 compliant TP-PMD physical sub-layer with adaptive equalization and baseline wander compensation.
- Error-free operation up to 150 meters.
Applications
The DP83848YBX/NOPB is ideally suited for various applications that require reliable Ethernet connectivity in harsh environments. These include:
- Wireless remote base stations.
- Automotive and transportation systems.
- Industrial control systems.
Q & A
- What is the operating temperature range of the DP83848YBX/NOPB?
The operating temperature range is from –40°C to 105°C.
- What is the typical power consumption of the DP83848YBX/NOPB?
The typical power consumption is less than 270 mW.
- Does the DP83848YBX/NOPB support JTAG?
Yes, it supports IEEE 1149.1 JTAG.
- What interfaces are available on the DP83848YBX/NOPB?
The device supports MII, RMII (Rev. 1.2), and SNI interfaces.
- What is the package type and pin count of the DP83848YBX/NOPB?
The package type is HLQFP (PTB) with 48 pins.
- Does the DP83848YBX/NOPB have built-in self-test capabilities?
Yes, it includes 10/100 Mb/s packet BIST (Built-in Self Test).
- What is the maximum cable length for error-free operation?
Error-free operation is supported up to 150 meters.
- Does the DP83848YBX/NOPB support programmable LEDs?
Yes, it supports programmable LEDs for link, 10/100 Mb/s mode, activity, duplex, and collision detection.
- What are some typical applications for the DP83848YBX/NOPB?
Typical applications include wireless remote base stations, automotive/transportation systems, and industrial control systems.
- Does the DP83848YBX/NOPB comply with IEEE 802.3 standards?
Yes, it complies with IEEE 802.3 standards for MII, auto-negotiation, and parallel detection.
