I've seen the ads for these parts but have not used any yet. I did use the
LTC6907 oscillator as an FM oscillator in a product. I run them at 1.8MHz,
2.3MHz, and 2.8MHz. Deviation is +/- 75kHz. Two of the frequencies carry
audio. One carries FSK data. On the audio channels, I get a THD of 0.38%
and noise (with 75us pre and deemphasis) of 58dB below 75kHz deviation.
Nice simple circuit with reasonable audio performance.

Harold


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