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 802.15.4 DSSS-OQPSK in the 2.4 GHz Band
- 4.8 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 1 Mbps Data Rate
- 4.9 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 2 Mbps Data Rate
- 4.10 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 500 kbps Data Rate
- 4.11 RF Receiver Characteristics for Bluetooth Low Energy in the 2.4 GHz Band 125 kbps Data Rate
- 4.12 High-Frequency Crystal
- 4.13 Low-Frequency Crystal
- 4.14 Precision Low Frequency RC Oscillator (LFRCO)
- 4.15 GPIO Pins
- 4.16 Microcontroller Peripherals
- 4.17 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
Confidential
7. Design Guidelines
7.1 Layout and Placement
For optimal performance of the MGM220P,
• Place the module aligned to the edge of the application PCB, as illustrated in the figures below.
• Leave the antenna clearance area void of any traces, components, or copper on all layers of the application PCB.
• Connect all ground pads directly to a solid ground plane.
• Place the ground vias as close to the ground pads as possible.
• Do not place plastic or any other dielectric material in contact with the antenna.
Place vias close to
each of the
module’s GND pads
Place vias along all PCB edges
Wireless Module
(Top View)
GND
GND
GND
GND
Antenna Clearance
No metal in this area
Align module edge with PCB edge
Figure 7.1. Recommended Layout for MGM220P
The figure below illustrates layout scenarios that will lead to severely degraded RF performance for the module.
Copper
Clearance
Area
X
GND plane width
Figure 7.2. Non-Optimal Layout Examples
MGM220P Wireless Gecko Bluetooth Module Data Sheet
Design Guidelines
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