Analog Devices EV-ADF411XSD1Z, Руководство пользователя

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UG-161 EV-ADF411XSD1Z User Guide
Rev. A | Page 18 of 28
EVALUATION AND TEST
To evaluate and test the performance of the frequency synthesizer
(
ADF4110 , ADF4111 , ADF4112 , ADF4113 , ADF4116 , ADF4117 ,
ADF4118 , ADF4106 , ADF4107 , ADF4153 , ADF4154 , ADF4156 ,
or ADF4157 ), use the following procedure:
1. Install the SDP-S software drivers and Int-N or Frac-N PLL
software.
2. Connect the SDP board (black) to a PC using the supplied
USB cable.
3. Connect the SDP-S connector to the EV-ADF411XSD1Z.
4. Connect the power supplies to banana connectors (6 V
to 12 V).
5. Connect a spectrum analyzer to Connector J2.
6. Run the relevant Int-N or Frac-N PLL software.
7. Select the SDP board and the frequency synthesizer in the
Select Device and Connection tab in the main window of
the evaluation board software.
8. In the Main Controls tab in the main window of the evalu-
ation board software, set the VCO center frequency in the RF
VCO Output Frequency text box (Figure 32 uses a 5800 MHz
VCO). Set the required value in the PFD Frequency text box,
and program the Reference Frequency value to equal the
frequency supplied to Connector J11 (or the TCXO). See
Figure 36 for the suggested setup.
9. Measure the output spectrum. Figure 35 shows a
5800 MHz output.
Figure 35. Spectrum Analyzer Display
Figure 36. Typical Evaluation Setup
09146-
019
Ref -8.9 dBm Att 20 dB
A
Center 5.8 GHz Span 2 MHz 200 kHz/
3DB
RBW 50 kHz
VBW 200 kHz
SWT 20 ms
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
low
Date: 29.NOV.2011 18:39:36
SPECTRUM
ANALYZER
PC
EXTERNAL DC
GND
EXTERNAL DC
SUPPLY
TCXO
VCO
LOOP
FILTER
LOCK DETECT LED
PLL
POWER
LED
EXTERNAL
POWER
SWITCH
SDP CONNECTOR
REFERENCE IN/
REFERENCE OUT
PLL
SDP-S BOARD
POWER
SUPPLIES
SIGNAL
GENERATOR
09146-
020