Evaluation And Test; Added Evaluation And Test Section, Figure 19, And Figure 20 - Analog Devices ADF4002 User Manual

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EVALUATION AND TEST

To evaluate and test the performance of the ADF4002, use the
following procedure:
1. Ensure that a VCO and loop filter are inserted on the
board. Use ADIsimPLL to generate the loop filter
component values.
2. Install the SDP-S software drivers. Connect the evaluation
board to a PC using the supplied USB cable. Follow the
hardware driver installation procedure that appears.
3. Connect the SDP-S connector to the EV-ADF4002SD1Z.
4. Connect a reference signal to J11 (or J5, if an edge mount
connector is inserted).
5. Connect a spectrum analyzer to Connector J2.
6. Run the Int-N software.
7. Select the SDP board and the
Device and Connection tab of the software front panel
window.
8. In the software window, set the VCO center frequency
(Figure 19 uses a 400 MHz VCO). Set the PFD frequency
as defined in ADIsimPLL, and program the reference
frequency to equal that supplied to Connector J11 (or the
TCXO). See Figure 20 for the suggested setup.
PC
POWER
SUPPLIES
ADF4002 device in the Select
EXTERNAL DC
GND
EXTERNAL DC
SUPPLY
EXTERNAL
POWER
SWITCH
PLL
POWER
LED
Figure 20. Typical Evaluation Setup
Rev. A | Page 12 of 24
Evaluation Board User Guide
9. Measure the output spectrum. Figure 19 shows a 400 MHz
output.
Figure 19. Spectrum Analyzer Display
SDP-S BOARD
SDP CONNECTOR
LOCK DETECT LED
PLL
LOOP
TCXO
FILTER
VCO
SIGNAL
GENERATOR
REFERENCE IN/
REFERENCE OUT
SPECTRUM
ANALYZER