查询EVAL-ADF421XEB1供应商查询EVAL-ADF421XEB1供应商
Evaluation Board For PLL Frequency
a
FEATURES
General Purpose PLL Evaluation Board excluding Synthe-
sizer, VCOs, Loop Filters for generating generic PLL
standards.
Compatible with ADF4210 and ADF4216 synthesizer fami-
lies.
Accompanying Software allows complete control of syn-
thesizer functions from PC
Battery Operated: Choice of 3V or 5V supplies
BLOCK DIAGRAM
Synthesizer
EV AL-ADF421XEB1
GENERAL DESCRIPTION
This board is designed to allow the user to evaluate
the performance of the ADF421X Frequency Synthesizer for PLL's (Phase Locked Loops). The block
diagram of the board is shown below. It contains the
footprint for a ADF421X synthesizer, a pc connector,
SMA connector for the reference input, power supplies and RF output. There is also a footprint for a
loop filter and a VCO for both the RF and IF section
on board. 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.
RF
V
V
DD
VCO
OUT
VCO 1
(Va ri -L )
VCO 190-XXXT
SMA
Socket
EVAL-ADF411XEB1
PC CONNECTOR
9V BATTERY
POWER SWITCH
ON OFF
ADF4 11X
TCXO
Vectron
AD7706
V
P
CE
REF
IN
Information furnished by Analog Devices is believed to be accurate and reliable. However,
no responsibility is assumed by Analog Devices for its use, nor for any infringements of
patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of Analog Devices.
REV.PrA 02/00
© Analog Devices, Inc., 1999
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781-329-4700 Fax: 781-326-8703
Hardware Description
The evaluation board comes with a cable for connecting to
the printer port of a PC. The silk screen and cable diagram for
the evaluation board are shown below. The board schematic is
shown on pages 3 and 4.
EV AL-ADF421XEB1
EVAL-ADF411X
EVAL-ADF421X
1
6
2
7
3
8
4
9
5
9 Way
Female D-Type
To
ADF411X
ADF421X
Evaluation
Board
Brown - DATA
Figure 2. PC Cable Diagram
voltage is too low to sustain the required 3V or 5V for the
board supply.
Loop component values shown in the circuit diagram are
for 900MHz RF output, 5mA CP current, VCO190902T, 200kHz channel spacing and 20kHz loop bandwidth.
Black - CLK
Red - LE
Orange - CE
White - GND
Yellow
Purple
1
2
3
4
5
6
7
8
9
10
Blue
11
12
13
25 Way Male
D-Type
To
PC Printer Port
14
15
16
17
18
19
20
21
22
23
24
25
PC
Figure 1. Evaluation Board Silkscreen
The board is powered from a single 9V battery. The
power supply ciruitry allows the user to choose either 3V
or 5V for the ADF4113 V
supply. The default settings are 3V for the ADF411X V
and VP, and for the VCO
DD
DD
and 5V for the ADF411X VP and for the VCO supply. It
is very important to note that the ADF4113 V
never exceed the ADF411X V
. This can damage the de-
P
should
DD
vice.
All components necessary for LO generation are catered
for on-board. The TCXO connector provides the necessary Reference Input. The PLL is made up of the
ADF411X, passive loop filter and the VCO 190-XXXT
from Vari-L. The output is available at RFOUT through
a standard SMA connector. If the user wishes they may
use their own power supplies and reference input. In this
case, they need to insert SMA connectors to as shown on
the silkscreen and block diagram.
The AD7706 A/D converter is used to monitor the power
supply voltage and current consumption of the ADF411X.
This helps the user pick the optimum synthesizer settings for
power consumption and also provides an alert if the battery
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EV AL-ADF421XEB1
Figure 3. Evaluation Board Circuit Diagram (Page 1)
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EV AL-ADF421XEB1
Figure 4. Evaluation Board Circuit Diagram (Page 2)
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Software Description
The software comes on a set of two floppy disks (Disk 1 and
Disk 2). If the user double clicks on “setup.exe” on Disk 1,
then the install wizard installs the software. Follow the onscreen directions. The software will be installed in a default
directory called “C:/Program Files/Project1”. To run the
software, simply double-click on “adf411X.exe”.
The front panel of the evaluation board software is shown
below.
When the main software screen appears, follow the steps
below for initial setup to interface to the part.
Click on Choose Device, and the Device window will appear.
Choose the device being evaluated and click OK.
Click on Choose Port, and the Port Connector window will
appear. Choose the port that the cable is connected to on the
PC and click OK. (Normally LPT1)
Click on Osc In, and the Crystal Frequency window will
appear. Enter the reference frequency being used and click
OK.
EV AL-ADF421XEB1
Click on RF VCO Output Frequency, and the Output
Frequency window will appear. Enter the output frequency
and PFD reference frequency, and click OK.
Click On Prescaler, and the Prescaler window will appear.
Grab the pointer, and choose the desired prescaler value.
Click OK.
Click on the RF PD Polarity button to set the RF PD Polarity
bit High.
Click on Charge Pump Current Setting 2 or Charge Pump
Current Setting 1 and the Current Setting window will appear. Grab the pointer to set the Charge Pump Current Setting. Click OK.
The data is now set up, and other features can now be examined by the user.
Figure 5. Software Front Panel
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REV.PrA 02/00
EV AL-ADF421XEB1
Table 1. Bill of Materials for the EVAL-ADF411XEB1
Qty Reference Description Manufacturer PCB DECAL VALUE
1 U1 Do Not Insert ADI TSSOP-20
1 U2 AD7706BR ADI SO16WB AD7706BR
1 U3 AD780AR ADI SO8NB AD780AR
1 U4 ADP3300ART-5 ADI SOT23-6 ADP3300ART-5
1 U5 ADP3300ART-3 ADI SOT23-6 ADP3300ART-3
1 VCO1 Do Not Insert Vari-L
1 VCO2 Do Not Insert Vari-L
1 Y1 4.9152MHz Crystal
1 Y2 10 MHz TCXO
1 D1 SD103C Schottky Di General Semiconductor DO35 SD103C
1 D2 IN4001 D035 FEC 365-117
1 D3 Red Low Power LED Vishay LED FEC 657-130
1 D4 Green Low Power LED (Do Not Insert Vishay LED FEC 657-141
6 C1 C5 C7 C9 C11 C41 Multi Layer Ceramic Capacitor Murata Case 06 0.1uF
1 C2 Tantalum Capacitor AVX CAP\TAJ_B 10uF 6.3V
3 C3 C29 C31 Tantalum Capacitor AVX CAP\TAJ_A 22uF 6.3V
7 C4 C6 C8 C10 C12 C30 C32 Multi Layer Ceramic Capacitor Murata Case 06 10pF
2 C13-14 Multi Layer Ceramic Capacitor Murata Case 06 1nF
6 C15-17 C26-28 Multi Layer Ceramic Capacitor Murata Case 06 100pF
1 C18 Do Not Insert Murata Case 08
1 C19 Do Not Insert Murata Case 08
1 C20 Do Not Insert Murata Case 08
2 C21-22 Multi Layer Ceramic Capacitor Murata Case 06 33pF
1 C23 Do Not Insert Murata Case 08
1 C24 Do Not Insert Murata Case 08
1 C25 Do Not Insert Murata Case 08
3 C33 C36 C40 Multi Layer Ceramic Capacitor Murata Case 06 10nF
2 C34 C37 Tantalum Capacitor AVX CAP\TAJ_A 1uF 16V
2 C35 C38 Tantalum Capacitor AVX CAP\TAJ_A 4.7uF 10V
2 C39 C42 Tantalum Capacitor AVX CAP\TAJ_A 10uF 6.3V
Vectron International
Vectron International
HC49 low profile VXA1-1011
T-1185
1 R1 Resistor (Surface Mount Bourns Case 08 20r 1.0%
7 R2 R5-10 Resistor (Surface Mount Bourns Case 06 330r 1.0
1 R3 Resistor (Surface Mount Bourns Case 06 3k3 1.0
1 R4 Do Not Insert Bourns Case 06
1 R11 Do Not Insert Bourns Case 06
6 R12-14 R21-23 Resistor (Surface Mount Bourns Case 06 18r 1.0%
2 R15 R24 Resistor (Surface Mount Bourns Case 06 51r 1.0%
1 R16 Do Not Insert Case 08
1 R17 Do Not Insert Case 08
1 R18 Resistor (Surface Mount Bourns Case 06 1M 1.0%
1 R19 Do Not Insert Case 08
1 R20 Do Not Insert Case 08
1 R25 Do Not Insert Case 08
1 R26 Resistor (Surface Mount Bourns Case 06 2k7 1.0
3 R27-29 Resistor (Surface Mount Bourns Case 06 10k 1.0
6 R30-33 R40-41 Resistor (Surface Mount Meggitt Case 06 100k 0.1%
2 R34-35 Do Not Insert Case 06
2 R36 R37 Resistor (Surface Mount Bourns Case 06 330k 1.0%
2 R38 R39 Resistor (Surface Mount Bourns Case 06 0r 1.0%
1 R42 Resistor (Surface Mount Bourns Case 06 4k7 1.0
1 SW1 Push Button Switch Om ron SW \PB-SMALL FEC 176-986
1 SW2 SPDT Switch - (Washable) Apem SW _SIP-3P FEC 150-559
21 T1-21 Red Testpoint W Hughes TESTPOINT FEC-240-345
1 J1 9 PIN D-TYPE MALE (HORIZ) McMurdo DCON9M FEC 150-750
4 J2 J3 J4 J5 J6 Do Not Insert SMA
2 J6 J7
3 LK1 LK4 LK5 3 pin header Harwin SIP-3P FEC 512-047
3 LK2 LK3 LK6 4 pin header (2x2) Harwin FEC 512-035
6 LK1-6 Shorting Shunt Harwin FEC 150-410
4 Each Corner Rubber Stick-On Feet 3M FEC 148-922
GOLD 50Ω SMA SOCKET
Pasternack SMA PE4118
2 P1 Pair PCB snap-on battery connector Keystone BATT_PP3 FEC 723-988
1 P1 9V PP3 Battery Duracell FEC 908-526
1 PCB EVAL-ADF421XEB-5 (Rev. A)
Parts Free issued by ADI.
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REV.PrA 02/00
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