Quick Start Procedure - Linear Technology DC1846A Demo Manual

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.
DEMO MANUAL DC1846A
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
dc1846af
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