ISM-Band FSK Transmitter Module
Product Description
- RFM02 is a low costing ISM band transmitter module implemented with unique PLL approach. It works with FSK modulated signal ranging from 433, 868, 915MHz bands, comply with FCC, ETSI regulation. The SPI interface is used to communicate with micro-controller for parameter setting. RFM02 works with receiver module, At 433MHz band, the pair of module can work up to 300m in the free open air
- RFM02 has three packages: DIP, SMD1 and SMD2 (SMD2 is thinner and smaller than SMD1 due to the crystal size)
- Features:
- Low costing, high performance and price ratio
- Tuning free during production
- FSK or ASK reception
- PLL employed
- Fast PLL lock time
- High resolution PLL with 2.5KHz step
- Programmable frequency deviation (from 30kHz to 240kHz, step 30kHz)
- Programmable output power
- High data rate (up to 115.2Kbps with FSK modulation, with ASK modulation highest data rate is 256Kbps)
- Differential antenna output
- Automatic antenna tuning
- SPI interface
- Clock and reset signal output for external MCU use
- 10MHz crystal for PLL referencement
- Programmable crystal load capacitor bank
- Wake-up timer
- Low battery detection
- 2.2 to 5.4V power supply
- Low power consumption
- Stand by current less than 0.3μA
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