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a
Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4212EB1
GENERAL DESCRIPTION FEATURES Self Contained Evaluation Board including Synthesizer, This board is designed to allow the user to evaluate VCOs, Loop Filters for generating GSM 1800 standards the performance of the ADF4212 Frequency Synthe(1700MHz to 1800MHz RF, 520MHz to 560MHz IF). sizer for PLL's (Phase Locked Loops). The block RF and IF filters designed for 20kHz Loop Bandwidth, and diagram of the board is shown below. It contains the 200kHz Channel Spacing. footprint for a ADF4212 synthesizer, a pc connector, Accompanying Software allows complete control of synSMA connector for the reference input, power supthesizer functions from PC using Windows 95/98/NT. plies and RF output. There is also a loop filter and a Battery Operated: Choice of 3V or 5V supplies VCO for both the RF and IF section on board. A On-Board Monitoring of Voltage and Current cable is included with the board to connect to a pc Typical RF Phase Noise Performance of -84dBc/Hz @1kHz printer port. offset. The package also contains Windows 95/98/NT softTypical IF Phase Noise Performance of -90dBc/Hz @1kHz ware to allow easy programming of the synthesizer. offset. Typical Spurious Performance of batter than -80dBc @200kHz offset. BLOCK DIAGRAM
9V BA TTER Y V
DD POW ER SW ITCH
V
ON VC O
OFF
V
P
VC O 1 (Vari-L) A DF42 1X VC O 1 90-XX XT RF OU T SM A Soc ket
VC O 1 (Vari-L) VC O 1 90-XX XT SM A Soc ket
IF
OU T
R EF
IN
TC XO Ve ctron EV AL-AD F42 1XE B1 A D7 706
PC C ONNEC TOR
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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.
(c) 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
EVAL-ADF4212EB1
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.
EVAL-ADF411X EVAL-ADF421X
6 7 8 9
1 2 3 4 5
Black - CLK Brown - DATA Red - LE Orange - CE White - GND Yellow
1 2 3 4 5 6 7 8 9
Blue
14 15 16 17 18 19 20 21 22 23 24
PC
9 Way Female D-Type To ADF411X ADF421X Evaluation Board
10 11 12
Purple
25 13
25 Way Male D-Type To PC Printer Port
Figure 2. PC Cable Diagram
The AD7706 A/D converter is used to monitor the power supply voltage and current consumption of the ADF4212. This helps the user pick the optimum synthesizer settings for power consumption and also provides an alert if the battery voltage is too low to sustain the required 3V or 5V for the board supply.
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 ADF4212 VDD and VP, and for the VCO supply. The default settings are 3V for the ADF4212 VDD and 5V for the ADF4212 VP and for the VCO supply. It is very important to note that the ADF4212 VDD should never exceed the ADF4212 VP. This can damage the device. All components necessary for LO generation are catered for on-board. The TCXO connector provides the necessary Reference Input. The RF PLL is made up of the ADF4212, passive loop filter and the VCO 190-1750T from Vari-L. The output is available at RFOUT through a standard SMA connector. The IF PLL is made up of the ADF4212, passive loop filter and the VCO 190-540T from Vari-L. The output is available at IFOUT 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.
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Figure 3. Evaluation Board Circuit Diagram (Page 1)
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EVAL-ADF4212EB1
Figure 4. Evaluation Board Circuit Diagram (Page 2)
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EVAL-ADF4212EB1
Software Description
The software comes on a CD. If the user double clicks on "ADF4XXXEvaluationSoftware.exe" on the CD, then the install wizard installs the software. Follow the on-screen directions. The software will be installed in a default directory called "C:\Program Files\Analog Devices\ADF4xxx Evaluation Software". To run the software, simply double-click on "ADF4XXX Eval Software.exe". The front panel of the evaluation board software is shown below. When the device window appears, choose ADF4212 and click OK. The main software panel now appears. Click on Eval Board in the top right hand side of the main software screen. The Eval Board Window now appears. Click on EVAL-ADF4212EB1 and Click OK. This will set the correct data for the board configuartion. The device has now
been programmed and other features can now be examined by the user.
Figure 5. Software Front Panel
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Table 1. Bill of Materials for the EVAL-ADF4212EB1
Qty Reference 1 1 1 1 1 1 1 1 1 1 1 1 1 6 1 3 7 2 6 1 1 1 2 1 1 1 3 2 2 2 1 7 1 1 1 6 2 1 1 1 1 1 1 1 3 6 2 2 2 1 1 1 21 1 4 2 3 3 3 4 2 1 1 U1 U2 U3 U4 U5 VCO1 VCO2 Y1 Y2 D1 D2 D3 D4 C1 C5 C7 C9 C11 C41 C2 C3 C29 C31 C4 C6 C8 C10 C12 C30 C32 C13-14 C15-17 C26-28 C18 C19 C20 C21-22 C23 C24 C25 C33 C36 C40 C34 C37 C35 C38 C39 C42 R1 R2 R5-10 R3 R4 R11 R12-14 R21-23 R15 R24 R16 R17 R18 R19 R20 R25 R26 R27-29 R30-33 R40-41 R34-35 R36 R37 R38 R39 R42 SW 1 SW 2 T1-21 J1 J2 J3 J4 J5 J6 J6 J7 LK1 LK4 LK5 LK2-A LK3-B LK6-A LK1 LK4 LK5 Each Corner P1 P1 PCB Parts Free issued by ADI. Description ADF4212BRU AD7706BR AD780AR ADP3300ART-5 ADP3300ART-3 1750MHz VCO 540MHz VCO 4.9152MHz Crystal 10 MHz TCXO SD103C Schottky Diode IN4001 Red Low Power LED Green Low Power LED (Do Not Insert) Multi Layer Ceram ic Tantalum Capacitor Tantalum Capacitor Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Multi Layer Ceram ic Tantalum Capacitor Tantalum Capacitor Tantalum Capacitor Resistor (Surface Resistor (Surface Resistor (Surface Do Not Insert Do Not Insert Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Resistor (Surface Capacitor M anufacturer ADI ADI ADI ADI ADI Vari-L Vari-L
Vectron International Vectron International
PCB DECAL TSSOP-20 SO16W B SO8NB SOT23-6 SOT23-6
VALUE ADF4212BRU AD7706BR AD780AR ADP3300ART-5 ADP3300ART-3 VCO190-1750T VCO190-540T VXA4-1011 T-1185 SD103C FEC 365-117 FEC 657-130 FEC 657-141 0.1uF 10uF 6.3V 22uF 6.3V 10pF 1nF 100pF 820pF 8.2nF 8pF 33pF 1nF 10nF 75pF 10nF 1uF 16V 4.7uF 10V 10uF 6.3V 20r 1.0% 330r 1.0% 3k3 1.0%
HC49 low profile DO35 D035 LED LED Case 0603 CAP\TAJ_B CAP\TAJ_A Case 0603 Case 0603 Case 0603 Case 0805 Case 0805 Case 0805 Case 0603 Case 0805 Case 0805 Case 0805 Case 0603 CAP\TAJ_A CAP\TAJ_A CAP\TAJ_A Case Case Case Case Case Case Case Case Case Case Case Case Case Case Case Case Case Case Case Case 0805 0603 0603 0603 0603 0603 0603 0805 0805 0603 0805 0805 0805 0603 0603 0603 0603 0603 0603 0603
General Sem iconductor Vishay Vishay Murata AVX AVX Murata Murata Murata Murata Murata Murata Murata Murata Murata Murata Murata AVX AVX AVX Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Bourns Meggitt Bourns Bourns Bourns Bourns Om ron Apem W Hughes McMurdo Pasternack Harwin Harwin 3M Keystone Duracell
Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor
Mount) Mount) Mount)
Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount) Mount)
18r 1.0% 51r 1.0% 4k7 1.0% 22k 1.0% 1M 1.0% 3k9 1.0% 22k 1.0% 3k9 1.0% 2k7 1.0% 10k 1.0% 100k 0.1% 0r 1.0% 330k 1.0% 0r 1.0% 4k7 1.0% FEC 176-986 FEC 150-559 FEC-240-345 FEC 150-750 PE4118 FEC 512-047 FEC 150-410 FEC 148-922
Push Button Switch SPDT Switch - (W ashable) Red Testpoint 9 PIN D-TYPE MALE (HORIZ) Do Not Insert GOLD 50 SMA SOCKET 3 pin header W ire link Shorting Shunt Rubber Stick-On Feet Pair PCB snap-on battery connector 9V PP3 Battery EVAL-ADF421XEB-5 (Rev. A)
SW \PB-SMALL SW _SIP-3P TESTPOINT DCON9M SMA SMA SIP-3P
BATT_PP3
FEC 723-988 FEC 908-526
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