ANALOG DEVICES UG-163 Service Manual
Evaluation Board User Guide
UG-163
One Technology Way • P. O . Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel : 781.329.4700 • Fax : 781.461.3113 • www.analog.com
GSM900 Evaluation Board for PLL Frequency Synthesizer
FEATURES
Self-contained board including synthesizer, VCO, and loop
filter, for generating GSM frequencies (819 MHz to 915 MHz)
Designed for 20 kHz loop bandwidth
Accompanying software allows complete control of
synthesizer functions from a PC
Battery operated: choice of 3 V or 5 V supplies
Typical phase noise performance of −91 dBc/Hz at 1 kHz offset
Typical spurious performance of better than −90 dBc at
200 kHz offset from carrier
EVALUATION BOARD CONNECTION DIAGRAM
GENERAL DESCRIPTION
The EVAL-ADF411xEBZ1 is designed to allow users to evaluate
the performance of the ADF4113 frequency synthesizer for phase
lock loops (PLLs). The block diagram of the board is shown in
Figure 1. It contains the ADF4113 synthesizer, a pc connector,
an SMA connector for the reference input, power supplies, and
an RF output. There is also a loop filter (20 kHz bandwidth)
and an on-board VCO. A cable is included with the board to
connect to a PC printer port.
The package also contains Windows® software to allow easy
programming of the synthesizer.
TCXO
9V BATTERY
POWER SWITCH
ON OFF
FILTER
ADF411x
EVAL-ADF411xEBZ1
PC CONNECTO R
Figure 1.
V
P
MUXOUT
CE
9148-001
V
DD
V
VCO
TEST
SMA
SOCKET
VCO
TEST
RF
OUT
REF
IN
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 8
UG-163 Evaluation Board User Guide
TABLE OF CONTENTS
Features.............................................................................................. 1
General Description ......................................................................... 1
Evaluation Board Connection Diagram........................................ 1
Revision History ............................................................................... 2
Evaluation Board Hardware............................................................ 3
REVISION HISTORY
5/11—Revision 0: Initial Version
Hardware Description ..................................................................3
Evaluation Board Software...............................................................4
Software Description ....................................................................4
Programmable Software Settings................................................4
Evaluation Board Schematics...........................................................5
Rev. 0 | Page 2 of 8
Evaluation Board User Guide UG-163
V
A
EVALUATION BOARD HARDWARE
RF
through a standard SMA connector. Users can use their
HARDWARE DESCRIPTION
The evaluation board comes with a cable for connecting it 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
board schematics are shown in Figure 5 and Figure 6.
Figure 2. Evaluation Board Silkscreen
The board is powered from a single 9 V battery. The power supply
circuitry allows the user to choose either 3 V or 5 V for the
ADF4113 V
are 3 V for the ADF4113 V
VCO supply. Note that the ADF4113 V
the ADF4113 V
and VP, and for the VCO supply. The default settings
DD
, and 5 V for the ADF4113 VP and
DD
should never exceed
DD
because it can damage the device. All components
P
necessary for LO generation are on board. The 13 MHz TCXO
from Vectron provides the necessary reference input. The PLL is
made up of the ADF4113, a passive loop filter (20 kHz bandwidth),
and the VCO190-902T from Vari-L. The output is available at
09148-002
OUT
own power supplies and reference input. In this case, they need
to insert SMA connectors as shown on the silkscreen and block
diagram.
Loop filter components include the following:
• C1 = 470 pF
• C2 = 4.7 nF
• C3 = 20 pF
• R1 = 7.5 kΩ
• R2 = 20 kΩ
E
L-ADF411x
EVAL-ADF421x
1
6
2
7
3
8
4
9
5
9-WAY
FEMALE D-TYPE
TO
ADF411x
ADF421x
EVALUATION
BOARD
BLACK-CLK
BROWN-DATA
ORANGE-CE
WHITE-GND
YELLOW
1
2
3
RED-LE
4
5
6
7
8
9
BLUE
10
11
12
PURPLE
13
25-WAY
MALE D-TYPE
PC PRINTER PORT
TO
14
15
16
17
18
19
20
21
22
23
24
25
PC
09148-003
Figure 3. PC Cable Diagram
Loop component values shown in the circuit diagram are for a
900 MHz RF output, 5 mA CP current, VCO190-902T, 200 kHz
channel spacing, and 20 kHz loop bandwidth.
Rev. 0 | Page 3 of 8
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