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FEATURES Self-Contained Board including Synthesizer, VCO,s and Loop Filter Channel Spacing: 200kHz RF Output: 900MHz IF Output: 540MHz Designed for 20kHz loop bandwidth on both IF and RF Accompanying Software allows complete control of synthesizer functions from PC Battery Operated: Choice of 3V or 5V supplies Typical Phase Noise Performance of -91dBc/Hz @ 1kHz offset for RF (900MHz) Typical Spurious Performance of better than -90dBc at 200kHz offset from carrier
Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4213EB1
GENERAL DESCRIPTION
This board is designed to allow the user to evaluate the performance of the ADF4213 Frequency Synthesizer for PLL's (Phase Locked Loops). The block diagram of the board is shown below. It contains the ADF4213 synthesizer, a pc connector, TCXO reference input, power supplies and IF/RF outputs. Both output channels have a 20kHz loop filter. The IF channel has a 540MHz VCO while the RF channel has a 900MHz 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.
BLOCK DIAGRAM
V DD
9V BATBATTERY TERY
V VCO
ON
POWER SWITCH
OFF V P
VCO190902T ADF4213 SMA Socket RF OUT TCXO
VCO190540T
SMA Socket IF OUT
REF
IN AD7706 EVAL-ADF4213EB1 PC CONNECTOR PC CONNECTOR
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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-ADF4213EB1
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
ADF411X/ADF421X CABLE CONNECTIONS Rev 2 (15/3/99)
Figure 2. PC Cable Diagram
The AD7706 A/D converter is used to monitor the power supply voltage and current consumption of the ADF4213. 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. RF loop component values shown in the circuit diagram are for 900MHz RF output, 5mA CP current, VCO190-902T, 200kHz channel spacing and 20kHz loop bandwidth. IF loop component values are for 540MHz IF output, 5mA CP current, VCO190-540T, 200kHz channel spacing and 20kHz loop bandwidth.
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 ADF4213 VDD and VP, and for the VCO supplies. The default settings are 3V for the ADF4213 VDD and 5V for the ADF4213 VP and for the VCO supplies. It is very important to note that the ADF4213 VDD should never exceed the ADF4213 VP. This can damage the device. All components necessary for LO generation are on-board. The 13MHz TCXO from Vectron provides the necessary Reference Input. There are two channels controlled by the ADF4213. The RF PLL is made up of one half of the ADF4213, a passive loop filter (20kHz bandwidth) and the VCO 190-902T from Vari-L. The output is available at RFOUT through a standard SMA connector. The IF PLL is made up of one half of the ADF4213, a passive loop filter (20kHz bandwidth) 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 as shown on the silkscreen and block diagram. -2- REV.PrA 12/00
EVAL-ADF4213EB1
Figure 3. Evaluation Board Circuit Diagram (Page 1)
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EVAL-ADF4213EB1
Figure 4. Evaluation Board Circuit Diagram (Page 2)
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EVAL-ADF4213EB1
Software Description
The evaluation board software is contained on a CD-ROM which comes in the package. To load the software the user should click on "setup.exe" , 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". To run the software, simply go to the Start Menu and choose Program/ADF4XXX/ ADF4XXX_rev2. This will open the software for the evaluation board. The user will be asked to choose which device is being evaluated. Click on the ADF4213 button. Hit OK. The window shown below will now appear. In this panel, click on the "Eval Board" button. Choose ADF4213EB1 from the list on offer. Hit OK. The synthesizer will now be programmed with the correct settings for a GSM system working at 900MHz RF and 540MHz IF. 200kHz PFD frequency is set up, 32/33 prescaler is chosen and charge pump current of 5mA is programmed.
If the user wishes to change any of the settings then place the cursor over the desired parameter (RF VCO Output Frequency, for example) and click once. This brings up a screen where it is possible to either type in a new value of output frequency or else increment and decrement by the channel spacing. The software also allows monitoring of the device supply voltage, supply current and the charge pump voltage. Simply hit the "Update Voltage and Current Display" button to get an up-to-date reading.
Figure 5. Software Front Panel
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EVAL-ADF4213EB1
Table 1. Bill of Materials for the EVAL-ADF4113EB1
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 SW1 SW2 T1-21 J1 J2 J3 J4 J5 J6 J6 J7 LK1 LK4 LK LK2-A LK3-B LK6-A LK1 LK4 LK Each Corner P1 P1 PCB Parts Free issued by ADI. Description ADF4213BRU AD7706BR AD780A ADP3300ART-5 ADP3300ART-3 902MHz VCO 540MHz VCO 4.9152MHz Crystal 10 MHz TCXO SD103C Schottky Diode IN4001 Red Low Power LE Green Low Power LED (Do Not Insert) Multi Layer Ceramic Capacitor Tantalum Capacitor Tantalum Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Multi Layer Ceramic Capacitor Tantalum Capacitor Tantalum Capacitor Tantalum Capacitor Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Do Not Insert Do Not Insert Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Resistor (Surface Mount) Push Button Switch SPDT Switch - (Washable) Red Testpoint 9 PIN D-TYPE MALE (HORIZ) Do Not Insert GOLD 50 SMA SOCKET 3 pin header Wire link Shorting Shunt Rubber Stick-On Feet Pair PCB snap-on battery connector 9V PP3 Battery EVAL-ADF421XEB-5 (Rev. A) Manufacturer ADI ADI ADI ADI ADI Vari-L Vari-L
Vectron International Vectron International
PCB DECAL TSSOP-20 SO16WB SO8NB SOT23-6 SOT23-6 HC49 low profile DO35 D03 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 0805 Case 0603 Case 0603 Case 0603 Case 0603 Case 0603 Case 0603 Case 0805 Case 0805 Case 0603 Case 0805 Case 0805 Case 0805 Case 0603 Case 0603 Case 0603 Case 0603 Case 0603 Case 0603 Case 0603 SW\PB-SMALL SW_SIP-3P TESTPOINT DCON9M SMA SMA SIP-3P
VALUE ADF4213BRU AD7706BR AD780A ADP3300ART-5 ADP3300ART-3 VCO190-902T VCO190-540T VXA4-1011 T-1185 SD103 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 620pF 6.2nF 8pF 10nF 1uF 16V 4.7uF 10V 10uF 6.3V 20r 1.0% 330r 1.0% 3k3 1.0% 18r 1.0% 51r 1.0% 4k7 1.0% 22k 1.0% 1M 1.0% 5k6 1.0% 22k 1.0% 5k6 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
General Semiconductor Visha Visha 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 Omron Apem W Hughes McMurdo Pasternack Harwin Harwin 3M Keystone Duracell
BATT_PP3
FEC 723-988 FEC 908-526
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