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2.35GHz Dual Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4213EB2
GENERAL DESCRIPTION
FEATURES Self-Contained Board including Synthesizer, RF VCO and loop filter for generating frequencies of 2.3GHz to 2.4GHz and IF VCO and loop filter for generating frequencies of 700MHz to 850MHz Designed for 20kHz Loop Bandwidth Accompanying Software allows complete control of synthesizer functions from PC using Windows 95/98/NT Battery Operated: Choice of 3V or 5V supplies On Board Monitoring of Current and Voltage. Typical Phase Noise Performance of -83.5dBc/Hz (RF side) @ 1kHz offset Typical Phase Noise Performance of -90dBc/Hz (IF side) @ 1kHz offset.
This board is designed to allow the user to evaluate the performance of the ADF4213 Dual 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, SMA connector for the reference input, power supplies and RF and IF output. There is also a loop filter for both sides (20kHz bandwidth) and an RF and IF VCO 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.
BLOCK DIAGRAM
V
9V B A TTE R Y 9V B A TTE R Y
DD
V
P O W E R S W ITCH
VCO
ON
O FF
VCO1 VTU N VCO1 FOU T
V
VCO 1 (Vari-L) V C O 190-2350T SMA S ocket A D F4213 VCO 2 (Vari-L) V C O 190-775T
P
VCO2 VTU N
VCO2 FOU T
SMA S ocket
RF
OU T
TC X O
IF REF IN
V ectron 19M 2
OU T
RSET
A D 7706 E VA L-A D F4213E B 2 P C C O N NE C TO R P C C O N NE C TO R
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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-ADF4213EB2
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
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. The RF loop component values are for a 2.35GHz output, with 5mA CP current, VCO 190-2350T, 200kHz channel spacing and 20kHz loop band-width. The component values for the IF side are for a 760MHz output, 5mA CP current, VCO190-775T, 200kHz channel spacing and 20kHz loop band-width.
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 supply. The default settings are 3V for the ADF4213 VDD and 5V for the ADF4213 VP and for the VCO supply. 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 onboard. The 19.2 MHz TCXO from Vectron provides the necessary Reference Input. The PLL on the RF side is made up of the ADF4213, passive loop filter (20kHz bandwidth) and the VCO 190-2350 from Vari-L. The PLL on the IF consistes of the ADF4213, passive loop filter (20kHz bandwidth) and the VCO 190-775. The respective outputs are available at RFOUTand IFOUT through standard SMA connectors. 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 ADF4213. -2- REV.PrA 01/00
EVAL-ADF4213EB2
Figure 3. Evaluation Board Circuit Diagram (Page 1)
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EVAL-ADF4213EB2
Figure 4. Evaluation Board Circuit Diagram (Page 2)
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EVAL-ADF4213EB2
Software Description
The software comes on a CD. If the user runs "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 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 ADF4213 and click OK. The settings for this Evaluation Board are saved under options and presets. Select EVAL-ADF4213EB2. To manually configure the settings do the following:
Click on the value on the front page to bring up a submenu. Change the value of the parameter. Click the OK button. Use this to change the output frequency, PFD Frequency, Reference Input etc. The Evaluation board feaures an A/D converter whcih allows the volatges supplied and current drawn by the part to be displayed on screen. Press the "Update Voltage and Current Supply" readback these values.
Figure 5. Software Front Panel
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EVAL-ADF4213EB2
Qty Re fere nce 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 De scription ADF4213BRU AD7706BR AD780AR ADP3300ART-5 ADP3300ART-3 2350MHz VCO 775MHz VCO 4.9152MHz Crystal 19.2 MHz TCXO SD103C Schottky Diode IN4001 Red Low Power LED Green Low Power LED (Do Not Insert) Multi Layer Ceramic Tantalum Capacitor Tantalum Capacitor Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic Multi Layer Ceramic 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 Ma nufa cturer ADI ADI ADI ADI ADI Vari-L Vari-L
V ectron International V ectron International
PCB DECAL TSSOP-20 SO16W B SO8NB SOT23-6 SOT23-6
VALUE ADF4213BRU AD7706BR AD780AR ADP3300ART-5 ADP3300ART-3 VCO190-2350T VCO190-775T VXA1-1011 OSC-3B0-19.2MHZ SD103C FEC 365-117 FEC 657-130 FEC 657-141 0.1uF 10uF 6.3V 22uF 6.3V 10pF 1nF 100pF 1.5nF 15nF 18pF 33pF 680pF 6.8nF 82pF 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 Semiconductor 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 Omron 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% 2k4 1.0% 20k 1.0% 1M 1.0% 4k7 1.0% 20k 1.0% 4k7 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 FEC FEC FEC 150-410 148-922 723-988 908-526
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
SW \PB-SMALL SW _SIP-3P TESTPOINT DCON9M SMA SMA SIP-3P
BATT_PP3
PCB EVAL-ADF421XEB-5 (Rev. A) Parts Free issued by ADI. Leave position blank - Do not insert.
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