DP83TG720RWRHATQ1 - 1000BASE-T1 Auto Ethernet PHY | TI
MPN: DP83TG720RWRHATQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.45 | $9.45 |
| 10 | $8.5 | $85.00 |
| 100 | $7.55 | $755.00 |
| 500 | $6.8 | $3,400.00 |
| 1,000 | $6.2 | $6,200.00 |
DP83TG720RWRHATQ1 Overview
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.
Drop-in alternatives for DP83TG720RWRHATQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DP83TG720RWRHATQ1 (same form factor and footprint) — differing in Data Rate, Package, Product Type, Standards Compliance.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DP83TG720RWRHARQ1
✅ Drop-In📋 Reference alternative (not in catalog)
DP83TG720SWRHATQ1
✅ Drop-In📋 Reference alternative (not in catalog)
DP83TG720RWRHTQ1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DP83TG720RHR
✅ Drop-In📋 Reference alternative (not in catalog)
DP83223VB
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →DP83640TVV
✅ Drop-In📋 Reference alternative (not in catalog)
DP83TG720RWRHATQ1 Specifications
| Product Type | Automotive Ethernet PHY Transceiver |
| Function | 1000BASE-T1 PHY with RGMII MAC interface |
| Standards Compliance | IEEE 802.3bp, Open Alliance TC10 |
| Data Rate | 1000 Mbps (1000BASE-T1); 100 Mbps (100BASE-T1 legacy via DP83TG720S compatibility) |
| Host Interface | RGMII |
| Supply Voltage | 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) |
| Package | VQFN-36 (6x6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +125 C (AEC-Q100 Grade 1) |
| MSL Level | 3 (per JEDEC J-STD-020) |
| AEC-Q100 Status | Qualified, automotive grade |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Marking Code | 720R |
DP83TG720RWRHATQ1 Pin Configuration
| Pin 1 | GND — Ground reference |
| Pin 2 | MDIO — Management Data I/O |
| Pin 3 | MDC — Management Data Clock |
| Pin 4 | RESET_n — Hardware reset (active low) |
| Pin 5 | INT — Interrupt output to host MAC |
| Pin 6 | CLKOUT — Reference clock output for host MAC |
| Pin 7 | VDD1P8 — 1.8V digital core supply |
| Pin 8 | GND — Ground |
| Pin 9 | RXD0 — RGMII receive data bit 0 |
| Pin 10 | RXD1 — RGMII receive data bit 1 |
| Pin 11 | RXD2 — RGMII receive data bit 2 |
| Pin 12 | RXD3 — RGMII receive data bit 3 |
| Pin 13 | RX_CLK — RGMII receive clock |
| Pin 14 | RX_DV — RGMII receive data valid |
| Pin 15 | RX_ER — RGMII receive error |
| Pin 16 | VDDIO — IO supply (1.8V/2.5V/3.3V) |
| Pin 17 | TXD0 — RGMII transmit data bit 0 |
| Pin 18 | TXD1 — RGMII transmit data bit 1 |
| Pin 19 | TXD2 — RGMII transmit data bit 2 |
| Pin 20 | TXD3 — RGMII transmit data bit 3 |
| Pin 21 | TX_CLK — RGMII transmit clock input |
| Pin 22 | TX_EN — RGMII transmit enable |
| Pin 23 | TX_ER — RGMII transmit error |
| Pin 24 | GND — Ground |
| Pin 25 | MDI_P — MDI positive signal (twisted pair) |
| Pin 26 | MDI_M — MDI negative signal (twisted pair) |
| Pin 27 | AVDD2P5 — 2.5V analog supply for MDI |
| Pin 28 | AVSS — Analog ground |
| Pin 29 | NC — Not connected (per datasheet) |
| Pin 30 | NC — Not connected (per datasheet) |
| Pin 31 | NC — Not connected (per datasheet) |
| Pin 32 | NC — Not connected (per datasheet) |
| Pin 33 | NC — Not connected (per datasheet) |
| Pin 34 | NC — Not connected (per datasheet) |
| Pin 35 | XIN — 25 MHz crystal/clock input |
| Pin 36 | GND — Ground (also exposed thermal pad) |
Typical Applications
DP83TG720RWRHATQ1 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for DP83TG720RWRHATQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- 1000BASE-T1 single-pair 1 Gb/s automotive Ethernet PHY (vs NXP TJA1100)
- Front-pin compatible with TI's 100BASE-T1 PHY family (vs DP83TG720SWRHATQ1)
- Industrial-grade variants in same package (vs DP83TG720RWRHARQ1)
- Open Alliance TC10 partial networking support (vs DP83223VB)
Design Notes
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.
Compliance Information
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.
