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dc1649afa
DEMO MANUAL DC1649A
DESCRIPTION
LTC6945
Ultralow Noise and Spurious
Integer-N Synthesizer
Demonstration circuit 1649A features the LTC
®
6945, an
ultralow noise and spurious integer-N synthesizer.
DC1649A provides 50Ω SMA connectors for the reference
frequency (REF+), the reference output buffer (REFO),
and the two single-ended RF outputs (RF+ and RF–).
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PLLWizard and QuikEval are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
Demonstration circuit 590 is used for SPI communication
with the LTC6945, controlled by the supplied PLLWizard™
software.
Design files for this circuit board are available at
http://www.linear.com/demo
Figure 1. DC1649A Inputs and Outputs
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