HopeRF`s RFM02 is a single chip, low power, multi-channel FSK transmitter Moduledesigned for use in applications requiring FCC or ETSI conformance for unlicenseduse in the bands at 315, 433MHz. Used in conjunction with RFM01, HopeRF`s FSKreceiver module, the RFM02 is a flexible, low cost, and highly integrated solutionthat does not require production alignments. All required RF functions are integratedwith optimized antenna designed.The RFM02 has a completely integrated PLL for easy RF design, and its rapid settlingtime allows for fast frequency-hopping, bypassing multipath fading and interferenceto achieve robust wireless links. In addition, highly stable and accurate FSK modulation is accomplished by direct closed-loop modulation with bit rates up to 256 kbps. The PLL`s high resolution allows the usage of multiple channels in any of the bands. The integrated power amplifier of the transmitter has an open-collector differential output and can directly drive a loop antenna with programmableoutput level, no additional matching network is required. An automatic antenna tuning circuit is built in to avoid costly trimming procedures and de-tuningdue to the "hand effect".For low-power applications, the device supports automatic activation from sleep mode.Active mode can be initiated by several wake-up events (on-chip timer timeout,low supply voltage detection, or activation of any of the four push button inputs).The RFM02`s on-chip digital interface supports microcontroller mode.Features:1) No alignment required in production with optimized antenna design2) Fast-settling, programmable, high-resolution PLL synthesizer3) Fast frequency-hopping capability4) Stable and accurate FSK modulation with programmable deviation5) High bit rate (up to 256Kbps)6) Direct loop antenna drive7) Automatic antenna tuning circuit8) Programmable output power level9) Alternative OOK support10) SPI bus for applications with microcontroller11) Clock output for microcontroller12) Integrated programmable crystal load capacitor13) Power-saving sleep mode14) Multiple event handling options for wake-up activation15) Wake-up timer16) Low battery detection17) 2.2 to 5.4V supply voltage18) Low power consumption (~9mA in low bands) and low standbycurrent (0.3mA)19) Typical applications:a) Remote controlb) Home security and alarmc) Wireless keyboard/mouse and other PC peripheralsd) Toy controlse) Remote keyless entryf) Tire pressure monitoringg) Telemetryh) Personal / patient data loggingi) Remote automatic meter readingj) Intelligent wireless network system
HOPE cooperate with ASK chip design company in USA and Germany and succeed in working out low cost,high integration,high reliability ASK/FSK IC,ASK/FSK module.1. ASK/FSK IC is designed for use in appl
RFM02B is a low costing ISM band transmitter module implemented with unique PLL approach. It works with FSK or ASK modulated signal ranges from 433/868/915MHz bands, comply with FCC, ETSI regulation.
HM-E is ideal for remote controlling systems. The module is equipped with 6bit length address code and 4 bits data formats, and the data is FSKmodulated for data transmission at the frequency range of
RFM02B is a low costing ISM band transmitter module implemented with unique PLL approach. It works with FSK or ASK modulated signal ranges from 433/868/915MHz bands, comply with FCC, ETSI regulation.
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