Raised Cosine Key Shaper chip that can be used with the 5W HF PA kit to make a standalone PA with raised cosine RF envelope shape for click-free CW keying. Please refer to App Note AN005 for details.

Note that this chip may be supplied as one of the following, depending on availability. They are functionally identical:

RC1: programmed ATtiny84 microcontroller chip
RC1a: programmed ATtiny24 microcontroller chip

This chip is not user re-programmable, because of the fuse settings which configure the /Reset pin as an I/O pin.

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RC1 Raised Cosine Keyer chip

Product Code: RC1
Availability: 35

$4.00

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