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
4.13 Precision Low Frequency RC Oscillator (LFRCO)
Table 4.13. Precision Low Frequency RC Oscillator (LFRCO)
Parameter Symbol Test Condition Min Typ Max Unit
Nominal oscillation frequen-
cy
F
LFRCO
— 32.768 — kHz
Frequency accuracy F
LFRCO_ACC
Normal mode -3 — 3 %
Precision mode
1
, across operat-
ing temperature range
2
-500 — 500 ppm
Startup time t
STARTUP
Normal mode — 204 — µs
Precision mode
1
— 11.7 — ms
Current consumption I
LFRCO
Normal mode — 175 — nA
Precision mode
1
, T = stable at 25
°C
3
— 655 — nA
Note:
1. The LFRCO operates in high-precision mode when CFG_HIGHPRECEN is set to 1. High-precision mode is not available in EM4.
2. Includes ± 40 ppm frequency tolerance of the HFXO crystal.
3. Includes periodic re-calibration against HFXO crystal oscillator.
BGM220S Wireless Gecko Bluetooth Module Data Sheet
Electrical Characteristics
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