RFM02 Datasheet, PDF (1/24 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Transmitter

RFM02
RFM02 Universal ISM
Band FSK Transmitter
DESCRIPTION
RFM02
Hope’s RFM02 is a single chip, low power, multi-channel FSK
transmitter designed for use in applications requiring FCC or
ETSI conformance for unlicensed use in the 433, 868, and
915 MHz bands. Used in conjunction with RF01, Hope’s FSK
receiver, the RFM02 transmitter produces a flexible, low cost,
and highly integrated solution that does not require
production alignments. All required RF functions are
integrated. Only an external crystal and bypass filtering are
needed for operation. The RFM02 offering a higher output
power and an improved phase noise characteristic.
The RFM02 features a completely integrated PLL for easy
RF design, and its rapid settling time allows for fast frequency hopping, bypassing multipath fading and
interference to achieve robust wireless links. In addition, highly stable and accurate FSK modulation is
accomplished by direct closed-loop modulation with bit rates up to 115.2 kbps. The PLL’s high resolution
allows the use of multiple channels in any of the bands.
The integrated power amplifier of the transmitter has an open-collector differential output that directly
drive a loop antenna with programmable output level. No additional matching network is required. An
automatic antenna tuning circuit is built in to avoid costly trimming procedures and de-tuning due 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).
Tel: [phone] Fax: [phone] E-mail: [e-mail] http://www.hoperf.com