You can do a lot worse than straight TTL. Some useful graphs on pages 102 and 103 of Rohde's "Microwave and Wireless Synthesizers: Theory and Design".
Hint: Look it up at www.amazon.com and you can view those two pages, if you search within the book for the phrase "170 dB". -- john, KE5FX > The few experiments I've done indicate that there isn't that much > sample-to-sample jitter in a divider built up out of a reasonable-length > string of 74HC390 dividers, but the temperature stability is horrible. > _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
