Texas Instruments DP83TC817S-Q1 Automotive Ethernet Transceiver
Texas Instruments DP83TC817S-Q1 Automotive Ethernet Transceiver provides all the physical layer functions required to transmit and receive data, as well as xMII interface flexibility. This IEEE 802.3bw automotive Ethernet physical layer transceiver complies with Open Alliance EMC and interoperable specifications over unshielded single twisted-pair cable. The device supports an OA TC-10 low-power sleep feature with wake forwarding, which reduces system power consumption when communication is not needed. The integrated IEEE 802.1AE line rate security with authentication and optional encryption support helps secure communication over the network. Texas Instruments DP83TC817S-Q1 Automotive Ethernet Transceiver features a 6mm x 6mm VQFN (36) package that is footprint-compatible with TI's 100BASE-T1 PHYs and 1000BASE-T1 PHYs for design scalability. Applications include Advanced Driver Assistance Systems (ADAS), body electronics and lighting, and telematics.
Features
- IEEE 802.1AE Media Access Control security (MACsec)
- MACsec frame expansion: inbuilt buffering and flow control support to handle 12byte IPG Ethernet frames
- Authentication and encryption at line rate
- GCM-AES-XPN-128/256 and GCM-AES-128/256 cipher suites
- 16 total SAK channels, enabling 8 Tx/Rx SC
- Auto rollover support for SAK
- Up to 8 parallel rules for ingress/egress classification for Ethertype, VLAN, and DMAC
- Window replay protection
- IEEE 802.1AS time synchronization
- Highly accurate with 1pps signal:
- <±5ns synchronization jitter
- <±30ns synchronization offset
- Precise time-stamping for MACsec-encoded PTP packets
- Multiple IOs for event capture and trigger
- Highly accurate with 1pps signal:
- IEEE 802.3bw, OA 100BASE-T1 compliant, and TC-10 compliant:
- <18µA sleep current
- Fast wake from sleep by retaining PHY configuration during sleep (optional)
- Robust EMC performance:
- IEC62228-5 and OA EMC compliant
- SAE J2962-3 EMC compliant
- 39dBm DPI immunity with ±5% asymmetry
- <4dBμV radiated emissions in GPS and Glonass bands
- Class-II compliant stripline emissions
- MAC interfaces:
- MII, RMII, RGMII, and SGMII
- Pin compatible with TI's 1000BASE-T1 PHY
- Single-board design for 100BASE-T1 and 1000BASE-T1 with required BOM change
- Diagnostic tool kit:
- Signal Quality Indication (SQI) and Time Domain Reflectometry (TDR)
- Voltage, temperature, and ESD sensors
- PPM monitor provides external clock ppm drift (up to ±100ppb accuracy)
- AEC-Q100 qualified for automotive applications:
- -40°C to 125°C temperature range (grade 1)
- IEC61000-4-2 ESD level 4 MDI ±8kV CD
- 6mm x 6mm VQFN (36) package
Applications
- Body electronics and lighting:
- Body control modules
- Zone control modules
- Advanced Driver-Assistance Systems (ADAS):
- Radar synchronization
- Telematics
Block Diagram
發佈日期: 2024-07-16
| 更新日期: 2025-05-09