Evaluation And Test; Added Evaluation And Test Section, Figure 19, And Figure 20 - Analog Devices EV-ADF4156SD1Z User Manual

UG-171

EVALUATION AND TEST

To evaluate and test the performance of the ADF4156, use the
following procedure:
1. Install SDP-S software drivers and ADF4153-4-6-7
software. Connect the evaluation board to a PC using the
supplied USB cable. Follow the hardware driver installation
procedure that appears.
2. Connect SDP-S connector to EV-ADF4156SD1Z.
3. Connect spectrum analyzer to Connector J2.
4. Run the ADF4153-4-6-7 software.
5. Select the SDP board and the
Device and Connection tab of the software front panel
window.
6. In the software window, set the VCO center frequency
(the example in Figure 19 uses 5800 MHz). Set the PFD
frequency to 10 MHz, and program the reference fre-
quency to equal 10 MHz. The charge pump current should
equal 0.31 mA. See Figure 20 for the suggested setup.
7. Measure the output spectrum. Figure 19 shows a
5800 MHz output.
PC
POWER
SUPPLIES
Downloaded from Elcodis.com electronic components distributor
ADF4156 device in the Select
EXTERNAL DC
LOCK DETECT LED
GND
EXTERNAL DC
SUPPLY
EXTERNAL
POWER
SWITCH
PLL
POWER
LED
Figure 20. Typical Evaluation Setup
Rev. B | Page 12 of 24
Evaluation Board User Guide
R&S FSUP Signal Source Analyzer
Settings Residual Noise [T1 w/o spurs]
Signal Frequency: 5.799930 GHz Int PHN (1.0 k .. 30.0 M) -34.1 dBc
Signal Level: 1.2 dBm Residual PM
Cross Corr Mode Harmonic 1 Residual FM
Internal Ref Tuned Internal Phase Det RMS Jitter
Phase Noise [dBc/Hz] Marker 1 [T1]
RF Atten 5 dB 4.98047 kHz
Top -60 dBc/Hz -82.98 dBc/Hz
LoopBW
1
-80
1 CLRWR
SMTH 1%
-100
2 CLRWR
-120
-140
-160
1 kHz 10 kHz 100 kHz
Frequency Offset
Running ...
low
Date: 25.JAN.2012 16:39:48
Figure 19. Spectrum Analyzer Display
SDP-S BOARD
SDP CONNECTOR
REFERENCE IN/
REFERENCE OUT
PLL
LOOP
TCXO
FILTER
VCO
LOCKED
Phase Detector +0 dB
1.607 °
2.669 kHz
0.7698 ps
0.0 S 1.6 mS
Spur Power (dBc)
A
-80
-100
-120
-140
SPR OFF
TH 0dB
-160
1 MHz 10 MHz 30 MHz
SIGNAL
GENERATOR
SPECTRUM
ANALYZER