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Texas Instruments CC1131QRHBRG4Q1
- Part No.:
- CC1131QRHBRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- RF Receivers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CC1131QRHBRG4Q1.pdf
- Description:
- RF RX FSK/GFSK 310-348MHZ 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,951
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Product details
Overview
CC1131QRHBRG4Q1 from Texas Instruments is an AEC-Q100 Grade 1 qualified UHF sub-1-GHz receiver IC for automotive applications, operating across 310–348 MHz, 420–450 MHz, and 779–928 MHz bands with –114 dBm sensitivity at 1.2 kBaud (315 MHz), 15.5 mA receive current, and integrated analog temperature sensor.
For engineers reviewing the CC1131QRHBRG4Q1 datasheet, CC1131QRHBRG4Q1 pinout, CC1131QRHBRG4Q1 application, or CC1131QRHBRG4Q1 equivalent, this page delivers verified technical context, automotive-grade RF performance metrics, SPI-controlled packet handling, wake-on-radio functionality, and validated alternative receivers for keyless entry, TPMS, and vehicle service link designs.
Technical Context
The CC1131QRHBRG4Q1 implements a fractional-N PLL synthesizer with 90-µs settling time, enabling fast frequency hopping in relay-attack-resistant systems. Its baseband modem supports 2-FSK, GFSK, MSK, OOK, and flexible ASK shaping with programmable data rates from 1.2 to 250 kBaud.
Hardware-accelerated packet handling includes sync word detection, address check, CRC generation/verification, and separate 64-byte RX/TX FIFOs. The device integrates automatic clear channel assessment (CCA), link quality indication (LQI), and digital RSSI output-all accessible via a 4-wire SPI interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | –40°C to +125°C (AEC-Q100 Grade 1 qualified) |
| Frequency Range | 310–348 MHz / 420–450 MHz / 779–928 MHz (software-programmable) |
| Sensitivity | –114 dBm at 1.2 kBaud, 315 MHz, 1% PER (high-sensitivity mode) |
| Supply Current (RX) | 15.5 mA typical at 315 MHz, 1.2 kBaud, VDD = 3 V |
| Data Rate | Programmable 1.2–250 kBaud (supports Manchester encoding) |
| RX Filter BW | User-configurable digital channel filter: 58–812 kHz |
| Modulation | 2-FSK, GFSK, MSK, OOK, and programmable ASK shaping |
Pinout & Package
CC1131QRHBRG4Q1 uses a 32-pin QFN package (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per TI SWRS076B Rev. April 2010, Section 3.1 (Terminal Assignments).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GDO0 | Digital output | Configurable status signal (e.g., packet sync, packet ready, RSSI threshold) |
| GDO2 | Digital output | Secondary status indicator (e.g., carrier sense, preamble detect) |
| SCLK | SPI clock | Master-generated clock for synchronous serial register access |
| MOSI | SPI data in | Serial input for writing configuration registers and TX FIFO data |
| MISO | SPI data out | Serial output for reading status registers and RX FIFO data |
| CSn | SPI chip select | Active-low enable for SPI communication; must be held low during transfer |
| RF_P / RF_N | Differential RF input | 50-Ω balanced antenna interface; requires external matching network |
| VDD | Power supply | 1.8–3.6 V analog/digital supply; all VDD pins must be tied together |
| GND | Ground | Common reference for analog/digital circuits and RF section |
| DCOUPL1 / DCOUPL2 | DC blocking | AC-coupled RF input path terminals; require external DC-blocking capacitors |
Key Features
| Feature | Design Value |
|---|---|
| Wake-on-Radio (WOR) | Enables ultra-low-power polling without MCU intervention; reduces system sleep current to 1.9 µA (125°C) |
| Integrated LQI & RSSI | On-chip link quality and received signal strength indicators eliminate need for external measurement circuitry |
| Hardware Packet Engine | Full packet handling (sync word, address, length, CRC) offloads MCU and ensures deterministic timing |
| AFC & CCA Support | Automatic frequency compensation aligns synthesizer to incoming signal; clear channel assessment prevents collisions |
| Automotive Qualification | AEC-Q100 Grade 1 qualification ensures reliability in under-hood and cabin environments up to 125°C |
Applications
| Remote Keyless Entry (RKE) | TPMS Sensor Receiver |
|---|---|
|
Use Scenario: Vehicle door lock/unlock command reception from key fob at distances up to 10 m in noisy RF environments. IC Role / Device Role / Timing Role: Dedicated UHF receiver decoding ASK/GFSK packets, performing sync detection and CRC validation before forwarding to MCU. Use Value: –114 dBm sensitivity enables reliable operation at low fob battery voltage; WOR allows periodic listening with <2 µA sleep current. |
Use Scenario: Central receiver unit in tire pressure monitoring systems capturing telemetry from multiple wheel sensors. IC Role / Device Role / Timing Role: High-selectivity receiver filtering adjacent-band interference (e.g., garage openers), supporting burst-mode 38.4 kBaud transmissions. Use Value: –64 dB adjacent-channel rejection at 868 MHz prevents false triggers; integrated LQI aids in identifying weak but valid sensor signals. |
| Passive Entry/Start (PEPS) | Vehicle Service Link |
|
Use Scenario: Low-latency response to proximity-based fob detection during walk-up or push-button start sequences. IC Role / Device Role / Timing Role: Fast-settling (90 µs) synthesizer enables rapid channel hopping between 315/433/868 MHz bands to defeat relay attacks. Use Value: Hardware-accelerated CCA and PQI reduce false sync detection in random noise, improving handshake reliability. |
Use Scenario: Diagnostic communication between service tools and vehicle ECUs via proprietary short-range UHF links. IC Role / Device Role / Timing Role: Configurable 1.2–250 kBaud data rate supports both legacy low-speed diagnostics and high-throughput firmware updates. Use Value: Programmable RX filter bandwidth (58–812 kHz) adapts to varying modulation schemes and channel spacing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UHF receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CC1131TRHBRG4Q1 | Same architecture and pinout; rated for –40°C to +105°C (vs. +125°C) | Not qualified for under-hood locations exceeding 105°C ambient | Select when full Grade 1 temperature range is not required; lower cost option for cabin-mounted receivers |
| CC1101QRHBRG4Q1 | Transceiver (RX+TX); identical receiver specs but adds +10 dBm programmable output power | Supports bidirectional protocols (e.g., challenge-response authentication) | Choose when system requires transmit capability; note higher active current (30 mA TX vs. 15.5 mA RX only) |
Compared with CC1131TRHBRG4Q1, the CC1131QRHBRG4Q1 provides extended high-temperature operation critical for engine bay placement; versus CC1101QRHBRG4Q1, it eliminates unnecessary transmit circuitry-reducing BOM cost, power consumption, and EMI concerns in receive-only systems.
Availability
CC1131QRHBRG4Q1 is available at Aetrix Electronics and suitable for remote keyless entry, TPMS receiver modules, and vehicle service link designs requiring stable component supply across automotive production lifecycles.
Supply support for CC1131QRHBRG4Q1 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 wireless connectivity solutions with broad automotive qualification expertise.
The CC11x1-Q1 product line delivers AEC-Q100-compliant sub-GHz RF ICs optimized for ultra-low-power, secure, and robust wireless communication in automotive keyless, telemetry, and diagnostic systems.
FAQ
What is the maximum operating temperature of the CC1131QRHBRG4Q1?
The CC1131QRHBRG4Q1 is rated for continuous operation from –40°C to +125°C and is AEC-Q100 Grade 1 qualified. This specification is explicitly confirmed in the family members table and recommended operating conditions section of the SWRS076B datasheet, making it suitable for under-hood automotive placements where ambient temperatures exceed 105°C.
Does the CC1131QRHBRG4Q1 support both FSK and OOK modulation?
Yes, the CC1131QRHBRG4Q1 supports 2-FSK, GFSK, MSK, OOK, and flexible ASK shaping as stated in the "Features" and "Detailed Description" sections of the SWRS076B datasheet. Modulation type is selected via register configuration (e.g., PKTCTRL0.MOD_FORMAT), and OOK operation is validated for RKE and garage door opener applications.
Is the CC1131QRHBRG4Q1 pin-compatible with other CC11x1-Q1 family members?
Yes, the CC1131QRHBRG4Q1 is pin-to-pin compatible with all CC11x1-Q1 devices, including CC1101QRHBRG4Q1 and CC1151QRHBRG4Q1, as explicitly stated in Section 1.4 ("Family Members") of the SWRS076B datasheet. This enables hardware reuse across transceiver, receiver, and transmitter variants within the same PCB layout.
What is the minimum supply voltage required for CC1131QRHBRG4Q1 operation?
The CC1131QRHBRG4Q1 operates over a supply voltage range of 1.8 V to 3.6 V, as specified in Section 2.2 ("Recommended Operating Conditions") of the SWRS076B datasheet. Operation below 1.8 V is not guaranteed and falls outside absolute maximum ratings.
How does the CC1131QRHBRG4Q1 handle packet integrity verification?
The CC1131QRHBRG4Q1 performs on-chip CRC-16 calculation and verification for all received packets, as documented in Section 3.11 ("Packet Handling Hardware Support"). When enabled, invalid packets are automatically discarded and do not populate the 64-byte RX FIFO, reducing MCU software overhead and ensuring only validated data is processed.
CC1131QRHBRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Frequency:
- 310MHz ~ 348MHz, 387MHz ~ 464MHz, 779MHz ~ 928MHz
- Sensitivity:
- -111dBm
- Data Rate (Max):
- 250kbps
- Modulation or Protocol:
- FSK, GFSK, MSK, ASK, OOK
- Applications:
- ISM, SRD
- Current - Receiving:
- 18.8mA
- Data Interface:
- PCB, Surface Mount
- Memory Size:
- -
- Antenna Connector:
- PCB, Surface Mount
- Features:
- RSSI Equipped
- Voltage - Supply:
- 1.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
CC1131QRHBRG4Q1 FAQ
1.How can I place an order for CC1131QRHBRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CC1131QRHBRG4Q1 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 CC1131QRHBRG4Q1 reliable?
The price and inventory of CC1131QRHBRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CC1131QRHBRG4Q1 is usually 5 days.
3.What payment methods are accepted for CC1131QRHBRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CC1131QRHBRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CC1131QRHBRG4Q1?
CC1131QRHBRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CC1131QRHBRG4Q1 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 CC1131QRHBRG4Q1?
For technical support, including CC1131QRHBRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CC1131QRHBRG4Q1 requirements.
6.How does Aetrix verify that CC1131QRHBRG4Q1 is sourced from the original manufacturer or authorized distributors?
All CC1131QRHBRG4Q1 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 CC1131QRHBRG4Q1 meets industry standards.
7.What is the process for return or replacement of CC1131QRHBRG4Q1?
All CC1131QRHBRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CC1131QRHBRG4Q1, 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 CC1131QRHBRG4Q1 part is unused and in its original packaging.
Return procedure for CC1131QRHBRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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