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dc1846af
DEMO MANUAL DC1846A
QUICK START PROCEDURE
Download the FracNWizard setup file at:
www.linear.com/FracNWizard
Run the FracNWizard setup file and follow the instructions
given on the screen. The setup file will verify and/or install
Microsoft .NET and install the FracNWizard. Refer to the
Help menu for software operation.
DC1846A Configuration
1. Connect a 100MHz reference frequency source (at J2)
and signal analyzers to RF+ and/or RF– (at J6 and/or
J7) using the SMA connectors (see Figure 1 and the
Typical DC1846A Requirements and Characteristics
table).
Be sure to terminate any unused RF output with 50Ω, or
poor spurious performance may result.
2. Choose the MUTE jumper setting:
JP1: GND/3.3V - MUTE position. Select GND to mute
the RF output, 3.3V to unmute.
3. Connect the GND, 3.3V, 5V banana jacks and the
V+VCO turret to a power supply and apply power (see
Figure 1 and the Typical DC1846A Requirements and
Characteristics table).
4. Connect the DC590 to the DC1846A with the provided
ribbon cable.
5. Run the FracNWizard application.
6. In FracNWizard, click
File -> Load Settings
and point
to the “LTC6947_100MHz.fracnset” file.
The red LED on the DC1846A should turn on indicating
that the loop is locked at 2415MHz.
Figure 3. FracNWizard Screenshot
