BGM121 Datasheet, PDF (1/96 Pages) Silicon Laboratories – IoT end devices and gateways

BGM121/BGM123 Blue Gecko Bluetooth ^®
SiP Module Data Sheet
The BGM121/BGM123 Blue Gecko Bluetooth ^® SiP Module family is targeted for appli-
cations where ultra-small size, reliable high performance RF, low-power consumption
and easy application development are key requirements.
At 6.5 x 6.5 x 1.4 mm the BGM121/BGM123 module fits applications where size is a con-
straint. BGM121/BGM123 also integrates a high performance, ultra robust antenna,
which requires minimal PCB, plastic and metal clearance. The total PCB area required
by BGM121/BGM123 is only 51 mm².
The BGM121/BGM123 also integrates a Bluetooth 4.2 compliant Bluetooth stack and it
can also run end-user applications on-board or alternatively used as a network co-pro-
cessor over one of the host interfaces.
BGM121/BGM123 SIP modules can be used in a wide variety of applications:
• Wearables
• IoT end devices and gateways
• Health, sports and wellness devices
• Industrial, home and building automation
• Smart phone, tablet and PC accessories
• Beacons
KEY FEATURES
• Bluetooth 4.2 low energy compliant
• Integrated antenna or RF pin
• TX power up to 8 dBm
• RX sensitivity: -90 dBm
• Range: up to 200 meters
• 32-bit ARM® Cortex®-M4 core at 38.4
MHz
• Flash memory: 256 kB
• RAM: 32 kB
• Autonomous Hardware Crypto Accelerator
and Random Number Generator
• Integrated DC-DC Converter
• Onboard Bluetooth stack
Core / Memory
ARM Cortex M4 processor
with DSP extensions and FPU
Memory
Protection Unit
Flash Program
Memory
RAM Memory Debug Interface DMA Controller
Antenna
Radio Transceiver
Crystals
Clock Management
38.4MHz
32.768kHz
High Frequency High Frequency
Crystal Oscillator RC Oscillator
Low Frequency
RC Oscillator
Auxiliary
High Frequency
RC Oscillator
Low Frequency
Crystal Oscillator
Ultra Low
Frequency
RC Oscillator
32-bit bus
Peripheral Reflex System
Serial Interfaces
I/O Ports
Chip antenna
Matching
RFSENSE
DEMOD
BALUN
I
LNA
RF Frontend
PA
Q
PGA
Frequency
Synthesizer
IFADC
AGC
MOD
USART
Low Energy
UART
I2C
External
Interrupts
General Purpose
I/O
Pin Reset
Pin Wakeup
Lowest power mode with peripheral operational:
EM0—Active
EM1—Sleep
EM2—Deep Sleep
EM3—Stop
Energy Management
Voltage
Regulator
Voltage Monitor
DC-DC
Converter
Power-On Reset
Brown-Out
Detector
Timers and Triggers
Timer/Counter
Protocol Timer
Low energy timer
Watchdog Timer
Pulse Counter
RTCC
Cryotimer
EM4—Hibernate
Other
CRYPTO
CRC
Analog I/F
ADC
Analog
Comparator
IDAC
EM4—Shutoff
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Rev. 1.0