Overview
The DP83640 Precision PHYTER™ device from Texas Instruments is a high-precision IEEE 1588 Precision Time Protocol (PTP) Ethernet PHY transceiver. This device is designed to deliver the highest level of precision clock synchronization for real-time industrial connectivity. It features deterministic, low latency and supports both copper and fiber media, making it versatile for various industrial applications. The DP83640 allows system designers to choose any microcontroller without requiring hardware customization, providing flexibility and precision in close-to-the-wire timestamping.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Supply Voltage (VCC) | -0.5 to 4.2 | V | |
| DC Input Voltage (VIN) | -0.5 to VCC + 0.5 | V | |
| DC Output Voltage (VOUT) | -0.5 to VCC + 0.5 | V | |
| Maximum Case Temperature | 95 | °C | TA = 85 °C |
| Maximum Die Temperature (TJ) | 150 | °C | |
| Lead Temperature (TL) | 260 | °C | Soldering, 10 s |
| Storage Temperature (Tstg) | -65 to 150 | °C | |
| I/O Supply Voltage (VI/O) | 2.5 ± 5% or 3.3 ± 5% | V | |
| Industrial Temperature Range | -40 to 85 | °C | |
| Power Dissipation (PD) | 260 mW (VI/O = 2.5 V), 290 mW (VI/O = 3.3 V) | mW | |
| Package Type | 48-pin LQFP | ||
| Package Size | 7 mm × 7 mm |
Key Features
- IEEE 1588 V1 and V2 Supported
- UDP/IPv4, UDP/IPv6, and Layer2 Ethernet Packets Supported
- IEEE 1588 Clock Synchronization
- Timestamp Resolution of 8 ns
- Allows Sub 10-ns Synchronization to Master Reference
- 12 IEEE 1588 GPIOs for Trigger or Capture
- Deterministic, Low Transmit and Receive Latency
- Selectable Frequency Synchronized Clock Output
- Dynamic Link Quality Monitoring
- TDR Based Cable Diagnostic and Cable Length Detection
- 10/100 Mb/s Packet BIST (Built-in Self Test)
- Error-Free Operation up to 150 Meters CAT5 Cable
- ESD Protection – 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
- Factory Automation
- Telecom – Ethernet/IP – Basestation – CIP Sync
- Real Time Networking
- Test and Measurement – LXI Standard
Q & A
- What is the primary function of the DP83640 Precision PHYTER™ device?
The DP83640 is a high-precision IEEE 1588 Precision Time Protocol (PTP) Ethernet PHY transceiver designed for real-time industrial connectivity.
- What are the supported IEEE 1588 versions by the DP83640?
The DP83640 supports both IEEE 1588 V1 and V2.
- 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 maximum cable length for error-free operation on CAT5 cable?
The DP83640 ensures error-free operation up to 150 meters on CAT5 cable.
- What diagnostic features does the DP83640 offer?
The DP83640 offers dynamic link quality monitoring, TDR based cable diagnostic, and cable length detection.
- What are the supported MAC interfaces by the DP83640?
The DP83640 supports RMII Rev. 1.2 and MII MAC interfaces.
- Does the DP83640 have built-in self-test capabilities?
- What is the industrial temperature range of the DP83640?
The industrial temperature range is -40 to 85 °C.
- What package type and size does the DP83640 come in?
The DP83640 comes in a 48-pin LQFP package with a size of 7 mm × 7 mm.
