Overview
The DP83TC814RRHARQ1 is a low-power 100BASE-T1 automotive Ethernet PHY transceiver developed by Texas Instruments. This device is designed to meet the stringent requirements of automotive applications, offering compliance with Open Alliance and IEEE 802.3bw standards. It is housed in a compact 6.00-mm × 6.00-mm, 36-pin VQFN wettable flank package, making it versatile and easy to integrate into various designs. The DP83TC814RRHARQ1 is pin-2-pin compatible with the DP83TG720 (1000BASE-T1) and form factor compatible with the DP83TC811, allowing for a single PCB layout to be used across different models, thus streamlining the design process and reducing costs.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Datarate (Mbps) | 100BASE-T1 | Interface type | MII, RGMII, RMII |
| Number of ports | Single | Rating | Automotive |
| Features | 25-MHz clock out, Cable diagnostics, Integrated LPF, Single supply, Wettable flank package | I/O supply voltage (typ) (V) | 1.8, 2.5, 3.3 |
| Operating temperature range (°C) | -40 to 125 | Number of LEDs | 2 |
| ESD HBM (kV) | 8 | Package | 36-pin VQFN (RHA) |
Key Features
- Open Alliance and IEEE 802.3bw 100BASE-T1 compliant
- Passes Level IV emissions with Integrated LPF
- SAE J2962-3 EMC compliant
- Configurable I/O voltages: 3.3 V, 2.5 V, and 1.8 V
- MAC interfaces: MII, RMII, RGMII, and SGMII
- Optional separate voltage rail for MAC interface pins (3.3 V, 2.5 V, 1.8 V)
- AEC-Q100 qualified for automotive applications with temperature grade 1: –40°C to +125 °C ambient operating temperature
- ±8-kV HBM ESD for pins 12 and 13; IEC61000-4-2 ESD classification level 4 for pins 12 and 13: ±8-kV contact discharge
- IEEE 1588 SFD support and TSN compliant with 802.3br frame pre-emption support
- Low active power operation: < 230 mW
- Diagnostic tool kit with signal quality indication (SQI), time domain reflectometry (TDR), electrostatic discharge sensor, voltage sensor, PRBS Built-in Self-Test, and loopbacks
Applications
The DP83TC814RRHARQ1 is designed for various automotive applications, including:
- Advanced Driver Assistance Systems (ADAS)
- Gateway and Body Control
- Telematics
Its robust features and compliance with automotive standards make it an ideal choice for demanding automotive environments.
Q & A
- Q: What is the operating temperature range of the DP83TC814RRHARQ1?
A: The operating temperature range is -40°C to +125°C.
- Q: What are the supported MAC interfaces for the DP83TC814RRHARQ1?
A: The device supports MII, RMII, RGMII, and SGMII MAC interfaces.
- Q: Is the DP83TC814RRHARQ1 compatible with other Texas Instruments models?
A: Yes, it is pin-2-pin compatible with the DP83TG720 (1000BASE-T1) and form factor compatible with the DP83TC811.
- Q: What is the power consumption of the DP83TC814RRHARQ1?
A: The device operates with low active power consumption of less than 230 mW.
- Q: What diagnostic tools are included in the DP83TC814RRHARQ1?
A: The device includes a diagnostic tool kit with features such as signal quality indication (SQI), time domain reflectometry (TDR), electrostatic discharge sensor, voltage sensor, PRBS Built-in Self-Test, and loopbacks.
- Q: Is the DP83TC814RRHARQ1 AEC-Q100 qualified?
A: Yes, the device is AEC-Q100 qualified for automotive applications.
- Q: What is the ESD protection level for the DP83TC814RRHARQ1?
A: The device has ±8-kV HBM ESD protection for pins 12 and 13 and IEC61000-4-2 ESD classification level 4 for pins 12 and 13: ±8-kV contact discharge.
- Q: What are the supported I/O supply voltages for the DP83TC814RRHARQ1?
A: The device supports I/O supply voltages of 1.8 V, 2.5 V, and 3.3 V.
- Q: How does the DP83TC814RRHARQ1 support TSN and IEEE 1588?
A: The device is TSN compliant with 802.3br frame pre-emption support and includes IEEE 1588 SFD support.
- Q: Where can I find detailed information and datasheets for the DP83TC814RRHARQ1?
A: Detailed information, datasheets, and application notes can be found on the Texas Instruments website or through authorized distributors like Ovaga Technologies.
