Omicron Bode 100 User Manual

47
Frequency Sweep Mode
Let’s examine the12 MHz quartz filter on the delivered printed circuit board
(PCB).
Questions:
• How does the gain of the quartz filter look if displayed as a function of
frequency?
• How does the reflection coefficient of the quartz filter look in the Smith chart?
• What are the series resonance and the parallel resonance frequencies?
• What is the attenuation of the quartz filter at its series resonance?
• What is the group delay T
g
of the quartz filter at its series resonance?
• What is the series resistance R
s
of the quartz filter?
To find out the answers, proceed as follows:
1. Connect the Bode 100 to the computer and start the Bode Analyzer Suite.
Hint: If you see the Bode 100 serial number on the lower right side of the
status bar then your Bode 100 is working properly.
2. Click the Frequency Sweep toolbar button to switch to the
Frequency Sweep mode.
3. Click the Device Configuration toolbar button to configure the
Frequency Sweep mode.
We want to measure the quartz filter with 50 Ω load.

Omicron Bode 100 Specifications

General

Brand	Omicron
Model	Bode 100
Category	Measuring Instruments
Language	English