Transceiver chip simplifies low power radio
A Solid State Supplies product story
Edited by the Electronicstalk editorial team Jun 23, 2004
Operating from 850 to 950MHz and supporting FSK modulation at datarates up to 200Kbit/s, the MICRF505 transceiver is designed to save space and cost while increasing performance and ease of use.
Operating from 850 to 950MHz and supporting frequency shift-keyed (FSK) modulation at datarates up to 200Kbit/s, the new MICRF505 transceiver from Solid State Supplies is designed to save space and cost while increasing performance and ease of use.
Providing many user programmable functions which include the frequency synthesiser, the component is particularly suitable for frequency hopping applications.
A primary objective in the design of the MICRF505 was the reduction of the overall size and lowering the total bill of materials (BOM).
Through high integration, the number of external components has been reduced to just a handful of capacitors, one inductor and a crystal.
Accommodating low-cost low-accuracy crystals, a frequency error estimator has been added to determine frequency mismatch between communicating transceivers, and an internal crystal tuning mechanism enables automated crystal tuning on-the-fly.
The MICRF505 also incorporates an internal clock recovery circuit to reduce the burden on its companion baseband device which, in turn, allows the use of a lower cost microcontroller.
The MICRF505 features high sensitivity, selectivity and transmit power so RF performance has not been sacrificed in the process of driving down BOM cost.
In fact by integrating the transmit/receive switch there are no switch losses, making the system level RF performance even higher.
"The launch of this product shows that we are really focused on doing all we can with our principals in order to drive our customers' system costs down to an absolute minimum", said Martin Warriner of Solid State.
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