Evaluation Board User Guide
UG-161
Rev. 0 | Page 3 of 12
EVALUATION BOARD HARDWARE
HARDWARE DESCRIPTION
The evaluation board package includes a cable for connecting the
EVAL-ADF411xEBZ1 to the printer port of a PC. The silkscreen
and cable diagram for the evaluation board are shown in Figure 2
and Figure 3. The test setup configuration is shown in Figure 4.
The board schematics are shown in Figure 7 and Figure 8.
09
14
6-
00
2
Figure 2. Evaluation Board Silkscreen
The evaluation board is powered from a single 9 V battery. The
power supply circuitry allows the user to individually choose
either 3 V or 5 V for the V
DD
of the frequency synthesizer, the
V
P
of the frequency synthesizer, and the supply of the VCO. The
default settings are 3 V for the V
DD
of the frequency synthesizer
and 5 V for the V
P
of the frequency synthesizer and for the
supply of the VCO.
It is important to note that the V
DD
of the frequency synthesizer
should never exceed the V
P
of the frequency synthesizer because
damage to the device may result.
All components necessary for LO generation are catered for on
board. A temperature compensated crystal oscillator (TCXO)
connector provides the necessary reference input. The PLL
comprises the frequency synthesizer, the passive loop filter, and
the VCO. The output is available at RFOUT through a standard
SMA connector. A different reference input and different power
supplies than those included with the evaluation board package
can be used, if desired. In this case, insert SMA connectors as
shown in the silkscreen (Figure 2) and the cable diagram (Figure 3).
1
14
2
15
3
16
4
17
PC
5
1
2
3
4
6
7
8
9
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
PURPLE
BLUE
YELLOW
RED—LE
BLACK—CLK
BROWN—DATA
ORANGE—CE
WHITE—GND
13
25
25-WAY
MALE D-TYPE
TO
PC PRINTER PORT
9-WAY
FEMALE D-TYPE
TO
ADF411x
EVALUATION
BOARD
EVAL-ADF411xEBZ1
0
91
46
-00
3
Figure 3. PC Cable Diagram
LOOP DESIGN
The evaluation board package does not include a VCO, loop
filter, or frequency synthesizer. The frequency synthesizer and
VCO are chosen by the user, depending on the frequency and
application requirements. The filter can then be designed based
on these requirements by using the ADIsimPLL software. This
software, which is provided on the CD-ROM included in the
evaluation board package, allows the user to enter the loop
parameters. The software then designs the filter and shows the
frequency and time domain analysis of the filter response. The
software also offers useful schematic and report options.
www.BDTIC.com/ADI
