Entiv is pleased to announce the development of a small, low-cost and low-power short-range transceiver system that can be tailored for use in a wide variety of electronic products. This design, which is now available under a non-exclusive license, will a add high quality and reliability RF link to your product while saving you development time.
The Entiv-2000 is a versatile short-range transceiver system. It operates in the 902MHz to 928MHz ISM band and uses Frequency Shift Keying (FSK) to encode digital data. FSK has a higher interference tolerance than the more common On-Off-Keyed (OOK) or Amplitude Shift Keyed (ASK) transceivers. The Entiv-2000 incorporates a single conversion super heterodyne receiver that has an IF frequency of 10.7 MHz allowing the use of inexpensive ceramic filters to tailor the pass band for a particular data rate. This is a much higher quality receiver that the super regenerative receivers that are commonly used for low cost wireless links.
The Entiv-2000 utilizes direct digital synthesis (DDS) and a phase locked loop (PLL) to generate the carrier wave. This allows very high resolution of frequency tuning for the module. The tuning steps are 375 Hz throughout the 902-928 MHz band. The degree of frequency shift that is used is programmable and is an integral part of the DDS system. This also allows tailoring of the module to meet the data rate requirements of a particular project.
The receiver incorporates a FM demodulator that in addition to decoding data can also receive analog signals such as voice communication. A single Entiv-2000 can rapidly alternate between receiving analog signals and digital data.
When mated to an external control processor the Entiv-2000 can implement a Frequency Hopping Spread Spectrum (FHSS) data link.
This allows greater interference avoidance and higher allowable transmitter output power. This could yield a range of several miles in an outdoor environment.
The design of the Entiv-2000 is available for a nonexclusive license for your product. Plans with and without royalties are available. The starter kit that comes with the license includes:
2 Entiv-2000 modules,
Hard copy of schematics,
bill of materials,
and printed circuit board,
OrCAD files of the schematic, and printed circuit board,
Hard copy of micro controller firmware.
Computer files of the micro controller firmware.
20 hours of consulting with one of Entiv Technologies RF experts.
For complete details please contact Entiv.
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