RFM65CW Datasheet, PDF (8/71 Pages) List of Unclassifed Manufacturers – ISM RECEIVER MODULE

ADVANCED COMMUNICATIONS & SENSING
RFM65CW
DATASHEET
This product datasheet contains a detailed description of the RFM65CW performance and functionality.
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1. General Description
The RFM65CW is a receiver module ideally suited for today's high performance ISM band RF applications. It is intended
for use as high-performance, low-cost FSK and OOK RF receiver for robust frequency agile RF links, and where stable
and constant RF performance is required over the full operating range of the device down to 1.8V.
The RFM65CW is intended for applications over a wide frequency range, including the 315MHz,433 MHz ,868 MHz and
915 MHz ISM bands. Coupled with a very aggressive sensitivity, the advanced system features of the RFM65CW include a
66 byte RX FIFO, configurable automatic packet handler, listen mode, temperature sensor and configurable DIOs which
greatly enhance system flexibility whilst at the same time significantly reducing MCU requirements.
The RFM65CW complies with both ETSI and FCC regulatory requirements
1.1. Simplified Block Diagram
RFIN
VBAT1&2
VR_ANA
VR_DIG
Power Distribution System
LNA
Single to
Differential
Mixers
Σ/Δ
Modulators
RC
Oscillator
Division by
2, 4 or 6
RSSI
AFC
Tank
Inductor
Loop
Frac-N PLL
NC
Filter
Synthesizer
NC
NC
XO
32 MHz
Frequency Synthesis
Receiver Blocks
XTAL
GND
Control Blocks
Primarily Analog
Primarily Digital
Figure 1. Block Diagram
RESET
SPI
GND
DIO0
DIO1
DIO2
DIO3
DIO4
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