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
3. System Overview
3.1 Introduction
The BGM220S module combines an energy-friendly MCU with a highly integrated radio transceiver in a SiP module with a robust, inte-
grated antenna. This section gives a short introduction to the features of the module.
The block diagram for the BGM220S module is shown in the figure below. The wireless module includes the EFR32BG22 wireless Sys-
tem on a Chip (SoC), required decoupling capacitors and inductors, 38.4 MHz crystal, RF matching circuit, and integrated antenna.
Silicon Labs
EFR32BG22
HF XTAL
38.4 MHz
Supply Decoupling
and DC-DC Support
VREGVDD
GPIO
GND
(up to 25)
RF Match
Integral
Antenna
RF_2G4
ANT_IN
ANT_OUT
IOVDD
VREG
DECOUPLE
1.8 - 3.8 V
2400 – 2483.5 MHz
or
2400 – 2483.5 MHz
External
Antenna
0 Ohm
Figure 3.1. BGM220S Block Diagram
A simplified internal schematic for the BGM220S module is shown in the figure below.
4.7µF
2.2µF
4.7µF
DVDD
RFVDD
PAVDD
VREGVDD
DECOUPLE
VREGVDD
RF2G4_IO
Matching
Network
EFR32BG22
38.4 MHz
HFXTAL_I
HFXTAL_O
PAx (0-8)
PBx (0-4)
PCx (0-6)
PDx (0-3)
PA0x
PB0x
PC0x
PD0x
VREGSW
2.2µH
AVDD
IOVDDIOVDD
VREG
DECOUPLE
RF_2G4
Integral
Antenna
ANT_OUT
ANT_IN
Figure 3.2. BGM220S Module Schematic
BGM220S Wireless Gecko Bluetooth Module Data Sheet
System Overview
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