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
3. System Overview
3.1 Block Diagram
The MGM220P module combines an energy-friendly MCU with a highly integrated radio transceiver in a PCB module with a robust,
integrated antenna. This section gives a short introduction to the features of the module.
The block diagram for the MGM220P module is shown in Figure 3.1 MGM220P Block Diagram on page 6. The wireless module
includes the EFR32MG22 wirelss System on a Chip (SoC), required decoupling capacitors and inductors, 38.4 MHz and 32.768 kHz
crystals, RF matching circuit, and integrated chip antenna.
Silicon Labs
EFR32MG22
HF XTAL
38.4 MHz
Supply Decoupling
and DC-DC Support
RF SHIELD
VDD
GPIO
GND
(up to 24)
RF Match
Antenna
LF XTAL
32.768 kHz
1.8 - 3.8 V
2400 – 2483.5 MHz
Figure 3.1. MGM220P Block Diagram
A simplified internal schematic for the MGM220P module is shown in Figure 3.2 MGM220P Module Schematic on page 6.
4.7µF
2.2µF
4.7µF
DVDD
RFVDD
PAVDD
VREGVDD
DECOUPLE
VDD
RF2G4_IO
Matching
Network
EFR32MG22
38.4 MHz
HFXTAL_I
HFXTAL_O
PAx (0-8)
PBx (0-4)
PCx (0-7)
PDx (2-3)
PA0x
PB0x
PC0x
PD0x
IOVDD
VREGSW
2.2µH
32.768 kHz
PD01
PD00
AVDD
Figure 3.2. MGM220P Module Schematic
MGM220P Wireless Gecko Bluetooth Module Data Sheet
System Overview
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