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Texas Instruments AWR1243FVBIGABLRQ1
- Part No.:
- AWR1243FVBIGABLRQ1
- Manufacturer:
- Texas Instruments
- Category:
- RF Transceiver ICs
- Package:
- 161-TFBGA, FCCSP
- Datasheet:
-
AWR1243FVBIGABLRQ1.pdf
- Description:
- IC RF TXRX+MCU ISM>1GHZ 161FC
- Quantity:
- Payment:
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Product details
Overview
AWR1243FVBIGABLRQ1 from Texas Instruments is a single-chip 76–81 GHz FMCW radar transceiver with integrated PLL, 3TX/4RX RF front end, baseband processing, and 12-bit ADCs. It delivers 12 dBm TX output power, 14–15 dB RX noise figure across band, and ultra-low phase noise (–95 dBc/Hz at 1 MHz offset in 76–77 GHz). Designed for automotive ADAS sensors requiring precise range/velocity/angle measurement under –40°C to 125°C junction temperature.
For engineers reviewing the AWR1243FVBIGABLRQ1 datasheet, AWR1243FVBIGABLRQ1 pinout, AWR1243FVBIGABLRQ1 application, or AWR1243FVBIGABLRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed functional safety compliance (ISO 26262 ASIL-B), real-world automotive use cases, and two rigorously cross-checked alternative mmWave transceivers.
Technical Context
The AWR1243FVBIGABLRQ1 implements a fractional-N PLL-based chirp engine enabling programmable ramp profiles with sub-Hz frequency resolution. Its RF subsystem integrates three single-ended transmitters (two simultaneously operable) and four single-ended receivers with on-die LNA, PA, and IF ADCs feeding a digital front-end decimation chain.
Host communication uses SPI for control and MIPI CSI-2 v1.1 (4-lane data + 1 clock lane) for high-throughput radar data streaming. Built-in self-test firmware, embedded temperature monitoring (±7°C accuracy), and interference detection operate autonomously without host processor involvement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 76–81 GHz with 4 GHz instantaneous bandwidth - enables centimeter-level range resolution in short-to-medium range radar. |
| Transmit Channels | 3 TX outputs (TX1–TX3), max 2 simultaneous - supports MIMO virtual aperture expansion without RF switching complexity. |
| Receive Channels | 4 RX inputs (RX1–RX4) - provides sufficient spatial sampling for AoA estimation using FFT-based beamforming. |
| TX Output Power | 12 dBm - sufficient for 100+ meter automotive forward radar detection with standard antenna gain. |
| RX Noise Figure | 14 dB (76–77 GHz), 15 dB (77–81 GHz) - balances sensitivity and wideband operation for multi-target tracking. |
| Phase Noise | –95 dBc/Hz @ 1 MHz offset (76–77 GHz) - minimizes velocity measurement error in Doppler processing. |
| Junction Temp Range | –40°C to 125°C - qualified for under-hood automotive deployment per AEC-Q100 Grade 1. |
| Functional Safety | ISO 26262 ASIL-B hardware integrity, TÜV SÜD certified - enables integration into ASIL-D system architectures with appropriate decomposition. |
Pinout & Package
AWR1243FVBIGABLRQ1 uses a 161-pin flip-chip BGA (FCBGA) package with 0.65-mm pitch and 10.4 mm × 10.4 mm body size. This package supports automated assembly and low-cost PCB routing while maintaining RF signal integrity through dedicated analog/digital ground planes and isolated power domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1, TX2, TX3 | RF Transmitter Outputs | Single-ended 76–81 GHz outputs; TX1–TX3 enable time-division or frequency-division MIMO configurations. |
| RX1–RX4 | RF Receiver Inputs | Single-ended 76–81 GHz inputs; each connects to separate antenna element for coherent beamforming. |
| CSI2_TXP[0–3], CSI2_CLKP/M | MIPI CSI-2 Data Interface | 4-lane differential data + clock outputs - streams digitized radar IF data at up to 37.5 Msps (real/complex 2x). |
| SPI_CS_1, SPI_CLK_1, MOSI_1, MISO_1 | SPI Control Interface | Configures device registers, loads chirp profiles, reads status, and manages calibration without interrupting radar operation. |
| VIN_13RF1/VIN_13RF2 | Analog/RF Power Supply | 1.3-V supplies for RF front-end blocks; shorted on PCB to reduce impedance and improve PSRR. |
| VIOIN, VIOIN_18, VIOIN_18DIFF | I/O Voltage Supplies | Supports dual-voltage operation: 3.3 V/1.8 V CMOS I/Os and 1.8 V for CSI-2 differential signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-accurate chirp engine | Fractional-N PLL enables <1 Hz frequency step resolution and sub-microsecond ramp linearity - critical for high-fidelity range-Doppler imaging. |
| Built-in calibration firmware | ROM-resident self-test executes temperature/process compensation for RX gain, TX phase, and LO leakage - eliminates factory calibration overhead. |
| Embedded interference detection | Real-time spectral monitoring identifies external radar or jammer signals and triggers adaptive chirp reconfiguration - maintains operation in congested 77-GHz bands. |
| Functional safety architecture | Dual-lockstep monitors, memory ECC, and diagnostic controllers meet ASIL-B requirements - reduces system-level fault injection testing burden. |
| Low-power RFCMOS process | 45-nm RF CMOS enables monolithic integration of RF/analog/digital blocks - eliminates discrete RFIC + FPGA solutions and reduces BOM count by >40%. |
Applications
| Automotive Forward Radar | Blind Spot Detection |
|---|---|
Use Scenario: Long-range object detection (up to 200 m) in highway driving with high relative velocity resolution. IC Role / Device Role / Timing Role: Primary FMCW transceiver generating synchronized chirps and digitizing IF returns for DSP-based CFAR and clustering. Use Value: 12 dBm TX power and 14 dB NF enable reliable detection of small RCS targets (e.g., motorcycles) at extended range under rain/fog. |
Use Scenario: Short-range angular coverage (±60°) beside vehicle detecting lane-change intent. IC Role / Device Role / Timing Role: Compact 77-GHz sensor providing azimuth-resolved point clouds via 4RX beamforming. Use Value: Four receive channels and on-chip phase shifter support real-time FFT-based AoA estimation with <5° accuracy. |
| Automatic Emergency Braking | Adaptive Cruise Control |
Use Scenario: Sub-100 ms reaction to sudden obstacle intrusion during urban driving. IC Role / Device Role / Timing Role: High-update-rate (≥30 Hz) radar core delivering range/velocity data to safety MCU for brake actuation decisions. Use Value: Integrated calibration and deterministic timing ensure <10 μs latency from chirp start to data ready - meets ASIL-B timing constraints. |
Use Scenario: Maintaining safe inter-vehicle distance at speeds up to 150 km/h with smooth acceleration/deceleration. IC Role / Device Role / Timing Role: Medium-range (30–150 m) radar providing continuous velocity differential and target classification. Use Value: Simultaneous 2TX operation enables virtual array expansion for improved lateral resolution - reduces false positives in cut-in scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FMCW transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AWR1443FVBIGABLQ1 | Same 76–81 GHz band, 4RX/3TX, but adds 576KB on-chip RAM and R4F MCU - enables onboard preprocessing. | Supports sensor fusion algorithms (e.g., clustering + tracking) without external host - reduces latency vs. AWR1243FVBIGABLRQ1's host-dependent architecture. | Select when radar processing must run entirely on-device; avoid if cost-sensitive or host MCU already handles DSP. |
| AWR1642FVBIGABLQ1 | Includes C674x DSP and 1.5MB RAM; supports complex FFT, CFAR, and Kalman filtering in hardware. | Targeted at mid-tier ADAS where real-time target tracking and classification are required - exceeds AWR1243FVBIGABLRQ1's raw-data streaming capability. | Choose for production systems needing embedded tracking; not suitable for simple range/velocity-only implementations due to higher BOM and thermal load. |
Compared with AWR1243FVBIGABLRQ1, AWR1443FVBIGABLQ1 adds local compute for reduced host dependency, while AWR1642FVBIGABLQ1 delivers full radar stack execution - both require PCB redesign due to different pinouts and power delivery requirements.
Availability
AWR1243FVBIGABLRQ1 is available at Aetrix Electronics and suitable for automotive forward radar, blind spot detection, automatic emergency braking, and adaptive cruise control requiring stable component supply across automotive production lifecycles.
Supply support for AWR1243FVBIGABLRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies with over 50 years of automotive IC leadership.
The AWR1243FVBIGABLRQ1 belongs to TI's mmWave sensor product line, engineered specifically for automotive radar applications demanding high integration, functional safety compliance, and robust 76–81 GHz RF performance in harsh environments.
FAQ
What is the operating frequency range of the AWR1243FVBIGABLRQ1?
The AWR1243FVBIGABLRQ1 operates from 76 GHz to 81 GHz with 4 GHz of instantaneous bandwidth. This range complies with global automotive radar regulations and enables high-resolution ranging and Doppler velocity measurement. The device supports programmable chirp profiles across the full band without hardware modification, and its fractional-N PLL ensures precise frequency synthesis for accurate FMCW operation.
Does the AWR1243FVBIGABLRQ1 support functional safety certification?
Yes, the AWR1243FVBIGABLRQ1 is ISO 26262 certified up to ASIL-B by TÜV SÜD and AEC-Q100 qualified. Its hardware integrity meets ASIL-B requirements, including dual-lockstep monitoring, memory ECC, and diagnostic controllers. Documentation supporting ASIL-D system integration is provided, allowing designers to implement safety mechanisms like redundancy or decomposition when building higher-ASIL systems.
How many transmit and receive channels does the AWR1243FVBIGABLRQ1 have?
The AWR1243FVBIGABLRQ1 integrates three transmit channels (TX1–TX3) and four receive channels (RX1–RX4). Only two transmitters can operate simultaneously, enabling time-division MIMO configurations. All four receivers are active concurrently, supporting coherent beamforming and angle-of-arrival estimation. Each channel is single-ended and designed for direct connection to patch antennas or RF front-end modules.
What interface does the AWR1243FVBIGABLRQ1 use for radar data output?
The AWR1243FVBIGABLRQ1 uses MIPI CSI-2 v1.1 for high-speed radar data output, with four differential data lanes (CSI2_TXP/M[0–3]) and one differential clock lane (CSI2_CLKP/M). This interface supports up to 37.5 Msps real/complex 2x sampling rate, enabling streaming of digitized IF data to an external processor. Control is handled separately via SPI, ensuring deterministic configuration without interfering with data throughput.
What package type and dimensions does the AWR1243FVBIGABLRQ1 use?
The AWR1243FVBIGABLRQ1 uses a 161-pin flip-chip BGA (FCBGA) package measuring 10.4 mm × 10.4 mm with 0.65-mm pitch. This package features separate analog and digital ground planes, dedicated RF power domains (VIN_13RF1/VIN_13RF2), and optimized thermal vias for junction temperatures up to 125°C. It is supplied in tape-and-reel format (ABLRQ1 suffix) for automated SMT assembly.
AWR1243FVBIGABLRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 161-TFBGA, FCCSP
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx + MCU
- RF Family/Standard:
- General ISM > 1GHz
- Protocol:
- -
- Modulation:
- -
- Frequency:
- 76GHz ~ 81GHz
- Data Rate (Max):
- 900Mbps
- Power - Output:
- 12dBm
- Sensitivity:
- -
- Memory Size:
- -
- Serial Interfaces:
- SPI, UART
- GPIO:
- 3
- Voltage - Supply:
- 1.71V ~ 1.89V, 3.15V ~ 3.45V
- Current - Receiving:
- -
- Current - Transmitting:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 161-FC/CSP (10.4x10.4)
AWR1243FVBIGABLRQ1 FAQ
1.How can I place an order for AWR1243FVBIGABLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AWR1243FVBIGABLRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AWR1243FVBIGABLRQ1 reliable?
The price and inventory of AWR1243FVBIGABLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AWR1243FVBIGABLRQ1 is usually 5 days.
3.What payment methods are accepted for AWR1243FVBIGABLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AWR1243FVBIGABLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AWR1243FVBIGABLRQ1?
AWR1243FVBIGABLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AWR1243FVBIGABLRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AWR1243FVBIGABLRQ1?
For technical support, including AWR1243FVBIGABLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AWR1243FVBIGABLRQ1 requirements.
6.How does Aetrix verify that AWR1243FVBIGABLRQ1 is sourced from the original manufacturer or authorized distributors?
All AWR1243FVBIGABLRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AWR1243FVBIGABLRQ1 meets industry standards.
7.What is the process for return or replacement of AWR1243FVBIGABLRQ1?
All AWR1243FVBIGABLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with AWR1243FVBIGABLRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AWR1243FVBIGABLRQ1 part is unused and in its original packaging.
Return procedure for AWR1243FVBIGABLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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