Data Sheet
Table Of Contents
- 1. Feature List
- 2. Ordering Information
- 3. System Overview
- 4. Electrical Characteristics
- 4.1 Absolute Maximum Ratings
- 4.2 General Operating Conditions
- 4.3 MCU Current Consumption with 3 V Supply
- 4.4 Radio Current Consumption with 3 V Supply
- 4.5 RF Transmitter General Characteristics for the 2.4 GHz Band
- 4.6 RF Receiver General Characteristics for the 2.4 GHz Band
- 4.7 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 1 Mbps Data Rate
- 4.8 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 2 Mbps Data Rate
- 4.9 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 500 kbps Data Rate
- 4.10 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 125 kbps Data Rate
- 4.11 High-Frequency Crystal
- 4.12 Low Frequency Crystal Oscillator
- 4.13 Precision Low Frequency RC Oscillator (LFRCO)
- 4.14 GPIO Pins
- 4.15 Microcontroller Peripherals
- 4.16 Typical Performance Curves
- 5. Reference Diagrams
- 6. Pin Definitions
- 7. Design Guidelines
- 8. Package Specifications
- 9. Soldering Recommendations
- 10. Tape and Reel
- 11. Certifications
- 12. Revision History
Figure 7.7. Efficiency of the Integrated Antenna as Function of the Carrier Board Size for BGM220S22A
7.4 Proximity to Other Materials
Placing plastic or any other dielectric material directly in contact with the antenna may cause performance degradation. A clearance of
minimum 0.5 mm is recommended to avoid excessive detuning of the antenna. Solder mask, conformal coating, and other thin dielec-
tric layers are acceptable directly on top of the antenna region. Any metallic objects in close proximity to the antenna will prevent the
antenna from radiating freely. The minimum recommended distance of metallic and/or conductive objects is 10 mm in any direction
from the antenna except in the directions of the application PCB ground planes.
7.5 Proximity to Human Body
Placing the module in contact with or very close to the human body will negatively impact antenna efficiency and reduce range. Further-
more, additional certification may be required if the module is used in a wearable device.
BGM220S Wireless Gecko Bluetooth Module Data Sheet
Design Guidelines
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