The Silicon Labs SI4463-C2A-GMR is a high-performance, low-power sub-GHz wireless transceiver belonging to the EZRadioPRO® family. Covering a 142–1050 MHz wide frequency range with industry-leading –129 dBm receive sensitivity and +20 dBm max output power, it supports (G)FSK, 4(G)FSK, OOK, and other modulations, ideal for smart metering, remote control, and industrial sensor applications. It delivers long-range, low-power wireless connectivity for diverse IoT and M2M solutions.
Key Features
Ultra-Wide Frequency Coverage & High Sensitivity: Supports 142–1050 MHz global bands with –129 dBm sensitivity, ensuring robust signal reception in challenging environments.
Extreme Low Power Design: Features 30 nA shutdown and 40 nA standby current, combined with 10 mA RX/18 mA TX (+10 dBm) low-power modes, extending battery life for portable devices.
Multi-Modulation & Flexible Configuration: Supports (G)FSK, 4(G)FSK, OOK, and integrates 64-byte TX/RX FIFOs and a programmable packet handler for data rates from 100 bps to 1 Mbps.
High Reliability & Interference Resistance: Offers 69 dB adjacent channel selectivity and 79 dB blocking rejection (1 MHz offset), enhanced by antenna diversity for stable communication in noisy environments.
Global Compliance & Integration: Meets IEEE 802.15.4g, WMBus, FCC/ETSI standards, with built-in temperature sensor, low-battery detection, and AFC, simplifying system design and reducing BOM cost.
Technical Specifications
Item
Specifications
Description
Part Number
SI4463-C2A-GMR
20-pin QFN package, lead-free compliant
Frequency Range
142–1050 MHz
Covers major sub-GHz bands for global deployment
Receive Sensitivity
–129 dBm (GFSK, 500 bps)
Typical value for weak signal environments
Max Output Power
+20 dBm (supports +27/+30 dBm with external PA)
High power for extended range
Supply Voltage
1.8–3.8 V
Wide voltage range for battery/power supply operation
Power Consumption
RX: 10/13 mA (LP/HP mode) TX: 85 mA (+20 dBm, 915 MHz) Standby: 40 nA Shutdown: 30 nA
Low-power modes optimize battery life
Modulation Types
(G)FSK, 4(G)FSK, OOK, (G)MSK
Flexible for various protocol requirements
Data Rate
100 bps–1 Mbps
Programmable for low-to-high speed communication
Operating Temp. Range
–40°C to +85°C
Industrial-grade temperature tolerance
Package
20-pin QFN (4×4 mm)
Compact for high-density PCB layouts
Typical Applications
Smart Metering & IoT: Enables long-range wireless communication in smart meters and IoT devices, with wide frequency coverage and low power for reliable, long-term operation compliant with IEEE 802.15.4g/WMBus.
Remote Control & Smart Home: Ideal for garage door openers and smart sockets, leveraging high sensitivity and interference resistance for precise control in multi-device environments.
Industrial Control & Sensor Networks: Operates in harsh industrial settings with –40°C to +85°C tolerance and robust anti-blocking, ensuring stable data transmission for sensors and remote monitoring.
Security & Alarm Systems: Used in wireless alarms and access control, featuring fast wake-up and low standby current to respond instantly while minimizing battery replacement frequency.
Medical & Wearable Devices: Fits compact designs with low-power modes and small form factor, supporting BLE-compatible modulations for continuous health monitoring with extended battery life.
Why Choose SI4463-C2A-GMR?
Global Band Coverage & Compliance: Supports 142–1050 MHz and international standards (FCC/ETSI/WMBus), eliminating hardware rework for global projects.
Ultra-Low Power for Longevity: 30 nA shutdown current extends battery life in remote sensors and meters, reducing maintenance costs.
Superior Signal Performance: –129 dBm sensitivity and 69 dB adjacent channel selectivity ensure reliable links in urban and industrial noise.
Programmable Flexibility: Built-in FIFOs and packet handler enable custom protocol support and fast data rate switching for diverse applications.
High Integration & Ease of Design: Integrates temperature sensing, AFC, and antenna diversity, reducing external components and simplifying system development.
SUNTOP COMPANY INTRODUCTION
Founded in 2000, Suntop is one of the leading global distributors of electronic components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost. As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.
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1. What is the minimum current consumption of SI4463-C2A-GMR? >
It achieves 30 nA in shutdown and 40 nA in standby, minimizing power draw for battery-operated devices.
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2. Which modulations are supported, and does it work for low-data-rate applications? >
Supports (G)FSK, 4(G)FSK, OOK, etc., with data rates as low as 100 bps for slow sensor networks.
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3. Can it operate reliably in high-temperature environments? >
Yes, with an operating temperature range of –40°C to +85°C, suitable for industrial and outdoor applications.
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4. Is the package suitable for automated manufacturing? >
The 20-pin QFN (4×4 mm) package is compatible with SMT processes, featuring SPI/GPIO interfaces for easy integration.
SUNTOP’s mode of transportation
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Fedex
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