Datasheet LTC6957-1, LTC6957-2, LTC6957-3, LTC6957-4 (Analog Devices) - 34

LTC6957-1/LTC6957-2/ LTC6957-3/LTC6957-4
TYPICAL APPLICATIONS Crystal Oscillator
5VIN+ 0.01µF OUT BP LT1761-3.3V 1µF 3.3V 10µF TO ALL V+ POINTS 0.1µF V+ 2 12 V+ SD1 0.1µF 50MHz FILTA V+ V 1 DD 11 BANDWIDTH FILTB V+ 6 OUT1 10 IN+ 30pF 3 IN– 4 450Ω OUT TO 50Ω 2k OUT2 9 0.3VP-P GNDOUT SQUARE WAVE 8 LTC6957-3 GND SD2 5 7 100Ω 10MHz 150Ω AT CUT 75pF 6957 TA02a
Total Phase Noise of 10MHz Crystal Oscillator
–40 –50 MEASURED ON AGILENT E5052A –60 10 CORRELATIONS –70 1Hz –47.34dBc/Hz /Hz) –80 10Hz –82dBc/Hz –90 100Hz –116.36dBc/Hz –100 1kHz –148.03dBc/Hz –110 10kHz –154.84dBc/Hz –120 100kHz –157.58dBc/Hz –130 1MHz –157.99dBc/Hz PHASE NOISE (dBc –140 –150 –160 –170 1 10 100 1k 10k 100k 1M OFFSET FREQUENCY (Hz) 6957 TA02b 6957fb 34 For more information www.linear.com/LTC6957-1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts