Wireless RF Modules and dongles for IoT | Coral RF

The N518AS is a professional-grade, 2Watt (+33 dBm) Sub-1GHz RF transceiver module engineered for mission-critical, long-range wireless communication. Building upon the proven Texas Instruments CC1120 platform, it integrates an external high-power PA and LNA to deliver industry-leading range (up to 15 km) and an outstanding -126 dBm receiver sensitivity. N518AS is the definitive solution for advanced metering infrastructure (AMI), industrial SCADA, and wide-area sensor networks demanding uncompromising reliability.

Key Features & Benefits

Unmatched Power & Sensitivity: Achieves +33 dBm (2W) output power and -126 dBm sensitivity.
Engineered for Stability: Dedicated VTCXO control pin (Pin 11) allows integration of a temperature-compensated crystal oscillator, ensuring exceptional frequency accuracy essential for narrowband applications and dense networks.
Complete RF Front-End Control: Separate TXEN, RXEN, and LANEN pins provide precise external control over the transmit chain, receive chain, and low-noise amplifier, enabling advanced power management and system optimization.
Global ISM Band Coverage: Available in variants supporting key global license-free bands: 169 MHz, 433 MHz, 868 MHz, and 915 MHz, facilitating worldwide deployment.
Full Design Flexibility: All CC1120 pins are broken out (SPI, GPIOs, control signals), offering developers complete access for deep firmware customization and seamless integration into complex systems.
Industrial Robustness: Operates across an extended -40°C to +85°C temperature range on a robust 4-layer PCB, built for harsh industrial and outdoor environments.

Technical Specifications

RF Performance

Parameter	Specification
Core Transceiver	Texas Instruments CC1120 + External PA & LNA
Frequency Bands	169 MHz, 433 MHz, 868 MHz, 915 MHz (Model Specific)
Max. Output Power	+33 dBm (2000 mW)
Receiver Sensitivity	-126 dBm (typical @ 1.2 kbps)
Modulation	2(G)FSK, 4(G)FSK, MSK, OOK, ASK
Programmable Data Rate	0.3 to 200 kbps
Typical Line-of-Sight Range	Up to 15,000 meters (with 3 dBi antenna @ 1.2 kbps)

Hardware & Electrical

Parameter	Specification
Module Dimensions	36.0 x 24.0 x 3.0 mm
Interface	SPI (MOSI, MISO, SCK, NSS/CSn)
Key Control Pins	TXEN, RXEN, LANEN, RESET, VTCXO
GPIOs	3x Programmable (GPIO0, GPIO2, GPIO3)
Antenna Connection	RF Pin (for IPEX connector or PCB trace)
Core Supply Voltage (VCC)	2.0 - 3.3V(3.3V Typical)
PA Supply Voltage (VCCPA)	4.5 - 5.5V(5V Typical)
Operating Temperature	-40°C to +85°C

Pin Configuration (21-Pin SMD)

Pin	Name	Type	Description
6	TXEN	I	Transmit Enable Control (Active High)
7	RXEN	I	Receive Enable Control (Active High)
8	LANEN	I	Low-Noise Amplifier Enable (Active High)
11	VTCXO	I/O	Voltage Control for TCXO / TCXO Enable
21	RF	RF	RF Signal Output/Input

For the complete pinout table, see the [Full Datasheet].

Target Applications

The N518AS is designed for systems where range, reliability, and control are paramount.

Advanced Metering Infrastructure (AMI): Long-range smart water, gas, and electricity meters.
Industrial IoT & SCADA: Remote telemetry for pipelines, tanks, environmental monitoring, and equipment control.
Wide-Area Sensor Networks: Agricultural sensing, forest monitoring, and perimeter security.
Professional Alarm Systems: High-reliability fire, intrusion, and industrial alarm backhaul.

Ordering Information

Select the frequency variant for your target market.

Ordering Code	Frequency Band	Key Feature
N518AS-169M	160 – 175 MHz	+33dBm, VTCXO pin, for EU/China utility bands
N518AS-433M	410 – 480 MHz	+33dBm, VTCXO pin, global ISM
N518AS-868M	860 – 880 MHz	+33dBm, VTCXO pin, for EU
N518AS-915M	910 – 960 MHz	+33dBm, VTCXO pin, for USA/ Americas

Note: +33 dBm output power may be subject to regulatory limits in your region. Ensure compliance with local RF regulations.

Why Choose the N518AS?

Beyond Standard Modules: The VTCXO support and dedicated front-end control pins set it apart from basic transceiver modules, offering system-level performance tuning.
A Scalable Wireless Portfolio: The N518AS is part of our high-power Sub-1GHz series:
- N517AS: 1W (+30dBm) for cost-optimized long-range links.
- N518AS: 2W (+33dBm) with VTCXO & control pins for critical, stable applications.
- N519AS: 5W (+37dBm) for maximum range and penetration.
Design-to-Deployment Support: From reference schematics to regulatory pre-compliance guidance, we provide the resources to accelerate your product development.