Overview
The DP83640 Precision PHYTER™ device, produced by Texas Instruments, is a high-precision clock synchronization solution designed for real-time industrial connectivity. It is based on the IEEE 1588 standard and offers deterministic, low-latency performance. This single-port fast Ethernet transceiver supports both copper and fiber media, making it versatile for various industrial applications. The device integrates advanced diagnostic features, including dynamic link quality monitoring and TDR-based cable diagnostics, which enable fault prediction and detection of deteriorating link conditions.
Key Specifications
| Specification | Details |
|---|---|
| Package Type | 48-pin LQFP (7 mm × 7 mm) |
| Operating Temperature Range | -40°C to 85°C |
| IEEE 1588 Support | V1 and V2 |
| Packet Support | UDP/IPv4, UDP/IPv6, and Layer2 Ethernet |
| Timestamp Resolution | 8 ns |
| Synchronization Accuracy | Sub 10-ns synchronization to master |
| GPIOs for IEEE 1588 | 12 GPIOs for trigger or capture |
| Latency | Deterministic, low transmit and receive latency |
| Clock Output | Selectable frequency synchronized clock output |
| Cable Diagnostics | TDR-based cable diagnostic and cable length detection |
| ESD Protection | 8 kV Human Body Model |
| I/O and MAC Interface | 2.5-V and 3.3-V I/Os and MAC interface |
| Auto-MDIX | Auto-MDIX for 10/100 Mbps |
| MAC Interface | RMII Rev. 1.2 and MII MAC interface |
| Serial Management Interface | 25-MHz MDC and MDIO serial management interface |
| Fiber Interface | IEEE 802.3 100BASE-FX fiber interface |
| JTAG | IEEE 1149.1 JTAG |
| LED Support | Programmable LED support for link, 10/100 Mb/s mode, duplex, activity, and collision detect |
Key Features
- IEEE 1588 V1 and V2 supported for precise clock synchronization
- Support for UDP/IPv4, UDP/IPv6, and Layer2 Ethernet packets
- Timestamp resolution of 8 ns and sub 10-ns synchronization to master
- 12 IEEE 1588 GPIOs for trigger or capture
- Deterministic, low transmit and receive latency
- Selectable frequency synchronized clock output
- Dynamic link quality monitoring and TDR-based cable diagnostics
- 10/100 Mb/s packet BIST (Built-in Self Test)
- Error-free operation up to 150 meters CAT5 cable
- ESD protection of 8 kV Human Body Model
- 2.5-V and 3.3-V I/Os and MAC interface
- Auto-MDIX for 10/100 Mbps
- RMII Rev. 1.2 and MII MAC interface
- 25-MHz MDC and MDIO serial management interface
- IEEE 802.3 100BASE-FX fiber interface
- IEEE 1149.1 JTAG
- Programmable LED support for link, 10/100 Mb/s mode, duplex, activity, and collision detect
- Optional 100BASE-TX fast link-loss detection
- Industrial temperature range
Applications
The DP83640 Precision PHYTER™ device is designed for real-time industrial connectivity applications that require high-precision clock synchronization. It is suitable for various industrial environments, including:
- Industrial automation systems
- Smart grid and power distribution systems
- Transportation systems requiring precise timing
- Telecommunication infrastructure
- Other applications where deterministic low-latency Ethernet connectivity is crucial
Q & A
- What is the primary function of the DP83640 Precision PHYTER™ device?
The primary function is to provide high-precision clock synchronization based on the IEEE 1588 standard for real-time industrial connectivity.
- What types of packets does the DP83640 support?
The device supports UDP/IPv4, UDP/IPv6, and Layer2 Ethernet packets.
- What is the timestamp resolution of the DP83640?
The timestamp resolution is 8 ns.
- Does the DP83640 support both copper and fiber media?
- What is the operating temperature range of the DP83640?
The operating temperature range is -40°C to 85°C.
- What diagnostic features does the DP83640 offer?
The device offers dynamic link quality monitoring and TDR-based cable diagnostics.
- Does the DP83640 have built-in self-test capabilities?
- What is the maximum cable length for error-free operation on CAT5 cable?
The maximum cable length is up to 150 meters.
- Does the DP83640 have ESD protection?
- What are the supported MAC interfaces?
The device supports RMII Rev. 1.2 and MII MAC interfaces.
