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PDF BGM121 Data sheet ( Hoja de datos )
| Número de pieza | BGM121 | |
| Descripción | Blue Gecko Bluetooth SiP Module | |
| Fabricantes | Silicon Laboratories | |
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Hay una vista previa y un enlace de descarga de BGM121 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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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
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.0
1 page  
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
Table 3.1. Antenna Efficiency and Peak Gain
Parameter
Efficiency
Peak gain
With optimal layout Note
-1 to -2 dB
1 dBi
Efficiency and peak gain depend on the application PCB layout
and mechanical design and the used antenna.
3.2.2 Wake on Radio
The Wake on Radio feature allows flexible, autonomous RF sensing, qualification, and demodulation without required MCU activity, us-
ing a subsystem of the BGM121/BGM123 including the Radio Controller (RAC), Peripheral Reflex System (PRS), and Low Energy pe-
ripherals.
3.2.3 RFSENSE
The RFSENSE module generates a system wakeup interrupt upon detection of wideband RF energy at the antenna interface, providing
true RF wakeup capabilities from low energy modes including EM2, EM3 and EM4.
RFSENSE triggers on a relatively strong RF signal and is available in the lowest energy modes, allowing exceptionally low energy con-
sumption. RFSENSE does not demodulate or otherwise qualify the received signal, but software may respond to the wakeup event by
enabling normal RF reception.
Various strategies for optimizing power consumption and system response time in presence of false alarms may be employed using
available timer peripherals.
3.2.4 Packet and State Trace
The BGM121/BGM123 Frame Controller has a packet and state trace unit that provides valuable information during the development
phase. It features:
• Non-intrusive trace of transmit data, receive data and state information
• Data observability on a single-pin UART data output, or on a two-pin SPI data output
• Configurable data output bitrate / baudrate
• Multiplexed transmitted data, received data and state / meta information in a single serial data stream
3.2.5 Random Number Generator
The Frame Controller (FRC) implements a random number generator that uses entropy gathered from noise in the RF receive chain.
The data is suitable for use in cryptographic applications.
Output from the random number generator can be used either directly or as a seed or entropy source for software-based random num-
ber generator algorithms such as Fortuna.
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.0 | 4
5 Page 
3.12 Memory Map
The BGM121/BGM123 memory map is shown in the figures below.
BGM121/BGM123 Blue Gecko Bluetooth ® SiP Module Data Sheet
System Overview
Figure 3.3. BGM121/BGM123 Memory Map — Core Peripherals and Code Space
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.0 | 10
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BGM121.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BGM121 | Blue Gecko Bluetooth SiP Module | Silicon Laboratories |
| BGM123 | Blue Gecko Bluetooth SiP Module | Silicon Laboratories |
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