DP83TG720RWRHATQ1 - 1000BASE-T1 Auto Ethernet PHY | TI
MPN: DP83TG720RWRHATQ1 ✓ Hoạt độngDP83TG720RWRHATQ1 Tóm tắt
What is an automotive Ethernet PHY? An automotive Ethernet PHY is a physical layer transceiver that converts digital MAC-layer data into analog signals suitable for transmission over copper cabling inside a vehicle. It sits between the Media Access Controller (MAC) and the MDI connector, encoding/decoding bits and handling line-side equalization, echo cancellation, and link training. As part of the broader Ethernet PHY category (Ethernet PHY -> transceiver -> interface IC -> semiconductor), automotive Ethernet PHYs follow IEEE 802.3bp (1000BASE-T1) and Open Alliance specifications designed for electromagnetic compatibility and single-pair robustness inside vehicles.
Key features of the DP83TG720RWRHATQ1 include 1000 Mbps line-side throughput, RGMII host interface, integrated 100BASE-T1 legacy support via front-pin compatibility with TI's lower-speed PHY family, Open Alliance interop compliance, and operation from -40C to +125C. The device provides MAC-side loopback, diagnostic PRBS patterns, and cable diagnostics to support field troubleshooting. The 6x6 mm VQFN-36 package with exposed pad supports single-sided PCB routing for compact automotive modules.
The DP83TG720 uses DSP-based adaptive equalization and echo cancellation tuned for the harsh automotive environment (PVT variation, motors, ignition noise). The PHY manages wake/sleep signaling for Partial Networking and operates from a 1.8V digital core with separate analog supplies for isolation from noise on the MDI line. Front-pin compatibility with the 100BASE-T1 DP83TG720S-Q1 enables one PCB layout to support both 100 Mb and 1 Gb automotive Ethernet.
Typical applications include advanced driver-assistance systems (ADAS) sensor fusion, in-vehicle networking gateways, surround-view and 4D radar data aggregation, automotive zonal ECUs, and telematics/central compute modules. The 1000BASE-T1 link removes the need for legacy automotive buses (CAN, FlexRay) where high bandwidth is required.
When designing with this PHY, ensure proper MDI line protection and common-mode chokes are used per application note SNLA244, and follow the DP83TG720 reference schematic for the 1.8V supply decoupling arrangement.
This page synthesizes distributor pricing, AEC-Q100-qualified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho DP83TG720RWRHATQ1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DP83TG720RWRHATQ1 (cùng hình factor và footprint) — khác nhau ở Package, Data Rate, Product Type, RoHS Status, Standards Compliance.
DP83TG720RWRHARQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DP83TG720SWRHATQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DP83TG720RWRHTQ1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DP83TG720RHR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DP83223VB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DP83640TVV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DP83TG720RWRHATQ1 Thông số kỹ thuật
| Product Type | Automotive Ethernet PHY Transceiver |
| Chức năng | 1000BASE-T1 PHY with RGMII MAC interface |
| Standards Compliance | IEEE 802.3bp, Open Alliance TC10 |
| Tốc độ dữ liệu | 1000 Mbps (1000BASE-T1); 100 Mbps (100BASE-T1 legacy via DP83TG720S compatibility) |
| Host Interface | RGMII |
| Điện áp cung cấp | 1.8 V / 2.5 V / 3.3 V (multi-rail) |
| Number of Transceivers | 1 |
| Duplex | Full, Half |
| Cabling | Single twisted-pair (unshielded or shielded) |
| Hộp | VQFN-36 (6x6 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +125 C (AEC-Q100 Grade 1) |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| AEC-Q100 Status | Qualified, automotive grade |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Marking Code | 720R |
Cấu hình chân DP83TG720RWRHATQ1
| Chân 1 | GND — Ground reference |
| Chân 2 | MDIO — Management Data I/O |
| Chân 3 | MDC — Management Data Clock |
| Chân 4 | RESET_n — Hardware reset (active low) |
| Chân 5 | INT — Interrupt output to host MAC |
| Chân 6 | CLKOUT — Reference clock output for host MAC |
| Chân 7 | VDD1P8 — 1.8V digital core supply |
| Chân 8 | GND — Ground |
| Chân 9 | RXD0 — RGMII receive data bit 0 |
| Chân 10 | RXD1 — RGMII receive data bit 1 |
| Chân 11 | RXD2 — RGMII receive data bit 2 |
| Chân 12 | RXD3 — RGMII receive data bit 3 |
| Chân 13 | RX_CLK — RGMII receive clock |
| Chân 14 | RX_DV — RGMII receive data valid |
| Chân 15 | RX_ER — RGMII receive error |
| Chân 16 | VDDIO — IO supply (1.8V/2.5V/3.3V) |
| Chân 17 | TXD0 — RGMII transmit data bit 0 |
| Chân 18 | TXD1 — RGMII transmit data bit 1 |
| Chân 19 | TXD2 — RGMII transmit data bit 2 |
| Chân 20 | TXD3 — RGMII transmit data bit 3 |
| Chân 21 | TX_CLK — RGMII transmit clock input |
| Chân 22 | TX_EN — RGMII transmit enable |
| Chân 23 | TX_ER — RGMII transmit error |
| Chân 24 | GND — Ground |
| Chân 25 | MDI_P — MDI positive signal (twisted pair) |
| Chân 26 | MDI_M — MDI negative signal (twisted pair) |
| Chân 27 | AVDD2P5 — 2.5V analog supply for MDI |
| Chân 28 | AVSS — Analog ground |
| Chân 29 | NC — Not connected (per datasheet) |
| Chân 30 | NC — Not connected (per datasheet) |
| Chân 31 | NC — Not connected (per datasheet) |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | NC — Not connected (per datasheet) |
| Chân 35 | XIN — 25 MHz crystal/clock input |
| Chân 36 | GND — Ground (also exposed thermal pad) |
Ứng dụng tiêu biểu
DP83TG720RWRHATQ1 phù hợp cho 6 Áp dụngs: ADAS Sensor Fusion Domain Controller, Automotive Zonal Architecture Gateway, 4D Imaging Radar Module, Surround-View Camera Module Hub, Telematics and V2X Gateway, Industrial Automation Transport Conveyor.
ADAS Sensor Fusion Domain Controller
Provides the 1 Gbps Ethernet link between zone ECUs and a central ADAS compute unit. The DP83TG720RWRHATQ1's 1000BASE-T1 capability over a single twisted pair makes it ideal for aggregating high-bandwidth sensor streams from 4D radars and front-facing cameras; the part's AEC-Q100 Grade 1 qualification supports -40C to +125C operation, and the RGMII interface connects directly to SoCs such as the TDA4VM, with link status driven through standard MDIO/MDC management. This topology replaces legacy CAN-FD and FlexRay buses where 1 Mb/s aggregate bandwidth is insufficient.
Được đề xuất
Automotive Zonal Architecture Gateway
Acts as the physical layer for a 1 Gb/s Ethernet backbone inside a vehicle zonal architecture. The DP83TG720RWRHATQ1 connects zone ECUs to the central gateway over a single pair, reducing wiring harness weight by up to 30% vs traditional four-pair Ethernet; its IEEE 802.3bp and Open Alliance compliance ensures interop across OEM gateways. The DSP adaptive equalization handles the EMC-heavy cockpit environment, while its 6x6 mm VQFN-36 package enables high-density multi-port switch modules used in zonal concentrators.
Được đề xuất
4D Imaging Radar Module
Provides the high-speed digital pipe for streaming 4D imaging radar point clouds to the central compute ECUs. The DP83TG720RWRHATQ1 supports 1 Gbps over a single twisted pair, sufficient for raw radar data transfer; its low latency and deterministic MAC-side interface make it ideal for safety-critical sensing. The AEC-Q100 qualification supports radar module operating temperature ranges, and the VQFN-36 EP (exposed pad) provides thermal performance in sealed IP67 radar enclosures.
Được đề xuất
Surround-View Camera Module Hub
Aggregates four high-resolution surround-view camera streams into a single Ethernet uplink. The DP83TG720RWRHATQ1's 1000BASE-T1 supports the typical aggregate bit rate of four 2MP cameras at 30 fps; its RGMII/IO voltage flexibility (1.8V/2.5V/3.3V) allows seamless connection to lower-cost host processors. With its small 6x6 mm package, the PHY is well suited for tight quad-camera ECU designs and meets AEC-Q100 Grade 1 automotive EMI/EMC standards.
Được đề xuất
Telematics and V2X Gateway
Provides high-speed Ethernet connectivity for telematics control units that aggregate V2X and cellular telemetry data. The DP83TG720RWRHATQ1's Open Alliance compliance and partial-network wake/sleep support enables energy-efficient TC10 operation in parked vehicles. With its RGMII interface, the PHY connects cleanly to telematics SoCs and automotive-grade Ethernet switches, while its compact VQFN-36 outline fits in the constricted TCU housing next to RF and power circuitry.
Được đề xuất
Industrial Automation Transport Conveyor
Provides single-pair 1000BASE-T1 Ethernet for AGVs and conveyor transport nodes. The DP83TG720RWRHATQ1's industrial-like robustness and AEC-Q100 qualification make it well suited for harsh factory floors with vibration and EMI; the PHY's standard RGMII host interface connects to embedded ARM SoCs running PROFINET or OPC UA. The single-pair cabling simplifies cable management across moving AGV rails compared to legacy 4-pair Cat-5e.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DP83TG720RWRHATQ1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DP83TG720RWRHARQ1 | DP83TG720SWRHATQ1 | DP83TG720RHR | DP83223VB | DP83640TVV |
|---|---|---|---|---|---|---|
| Package | VQFN-36 (6x6) | VQFN-36 (6x6) - identical | VQFN-36 (6x6) - identical | VQFN-36 (6x6) - identical | VQFN-36 - identical | VQFN-36 family |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments |
| Data Rate | 1000 Mbps (1000BASE-T1) | 1000 Mbps | 1000 Mbps (SGMII variant) | 1000 Mbps | 1000 Mbps (4-pair) | 1000 Mbps |
| Host Interface | RGMII | RGMII | SGMII | RGMII | RGMII | RGMII / TSN |
| AEC-Q100 Qualified | Yes (Grade 1) | Yes (Grade 1) | Yes (Grade 1) | Yes (Grade 1) | No (industrial) | No (industrial) |
| Cabling | Single twisted-pair (802.3bp) | Single twisted-pair | Single twisted-pair | Single twisted-pair | 4-pair (1000BASE-T) | 4-pair (1000BASE-T) |
| Supply Voltage | 1.8V / 2.5V / 3.3V multi-rail | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 3.3V single rail | 2.5V / 3.3V |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- 1000BASE-T1 single-pair 1 Gb/s automotive Ethernet PHY (vsNXP TJA1100)
- Front-pin compatible with TI's 100BASE-T1 PHY family (vsDP83TG720SWRHATQ1)
- Industrial-grade variants in same package (vsDP83TG720RWRHARQ1)
- Open Alliance TC10 partial networking support (vsDP83223VB)
Ghi chú thiết kế
MDI line protection: Place a common-mode choke (e.g., WE-LHMI series) within 1 cm of the MDI_P/MDI_M pins. Use a TVS diode rated to IEC 61000-4-2 8 kV contact discharge for automotive load-dump protection. Keep the MDI trace pair differential and 100-ohm matched, with continuous reference ground on layer 2; avoid via transitions on the pair.
The VQFN-36 exposed pad is the primary thermal path; stitch the pad to a 4-layer PCB ground pour with at least 4 thermal vias (0.3 mm drill) directly under the die. Estimated: at 1 Gbps with all RGMII lines switching, the IC typically dissipates ~0.9 W. With theta_JA of approximately 28 C/W on a 4-layer JEDEC PCB, this yields a 25 C junction temperature rise above ambient - acceptable for 125 C ambient.
Power sequencing: The 1.8V digital supply must ramp before the 2.5V analog supply; otherwise the device may latch up. Recommended: use a dual-rail LDO such as TPS7A4533 and enable the 1.8V rail first with a 100 ohm soft-start network. Also ensure the 25 MHz clock is stable for at least 10 ms before deasserting RESET_n.
RGMII uses both clock edges; trace-length-match the TXD[3:0], TX_EN, TX_ER lines to within 50 mil of TX_CLK, and similarly the RXD[3:0]/RX_DV/RX_ER to within 50 mil of RX_CLK at the host SoC. Without delay matching, GMII/RGMII duty-cycle skew will cause frame errors. Per TI SNLA244 (Ethernet PHY Layout Guide), keep these signals away from the MDI differential pair.
Decoupling: Use 10 uF X7R 0402 on the 2.5V analog rail within 5 mm of the AVDD pin to suppress switching noise from the DSP equalizer; add 0.1 uF / 1 nF X7R caps in parallel for high-frequency noise. The 1.8V digital core requires 1 uF + 0.1 uF near each VDD1P8 pin. The IO rail (1.8V/2.5V/3.3V) requires the host MAC voltage to match the configured IO mode.
Thông tin tuân thủ
AEC-Q100 Grade 1 qualified per TI datasheet; Open Alliance EMC and interop compliant per TI product page; RoHS/REACH compliant per TI product marking.
