adl5373 Analog Devices, Inc., adl5373 Datasheet - Page 18
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adl5373
Manufacturer Part Number
adl5373
Description
2300 Mhz To 3000 Mhz Quadrature Modulator
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADL5373.pdf
(20 pages)
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ADL5373
CHARACTERIZATION SETUP
The primary setup used to characterize the ADL5373 is shown
in Figure 39. This setup was used to evaluate the product as a
single-sideband modulator. The Aeroflex signal generator supplied
the LO and differential I and Q baseband signals to the device
under test, DUT. The typical LO drive was 0 dBm. The I-channel is
driven by a sine wave, and the Q-channel is driven by a cosine
wave. The lower sideband is the single sideband (SSB) output.
250kHz TO 6GHz SIGNAL GENERATOR
VPOS +5V
5.000
FREQ 4MHz
AGILENT E3631A
POWER SUPPLY
AEROFLEX
+
BIAS 0.5V
BIAS 0.5V
AGILENT 34401A
6V
0.175 ADC
MULTIMETER
–
0.175A
+
COM
±25V
GAIN 0.7V
GAIN 0.7V
IFR 3416
LEVEL 0dBm
–
90°
CONNECT TO BACK OF UNIT
I OUT
Figure 39. Characterization Bench Setup
I/AM
I
Q OUT
Rev. 0 | Page 18 of 20
Q/FM
Q
OUT
VPOS
RF
IP
IN
QP
QN
0°
F-MOD
The majority of characterization for the ADL5373 was performed
using a 1 MHz sine wave signal with a 500 mV common-mode
voltage applied to the baseband signals of the DUT. The baseband
signal path was calibrated to ensure that the V
offsets on the baseband inputs were minimized, as close as
possible, to 0 V before connecting to the DUT. See the Carrier
Feedthrough Nulling section for the definitions of V
GND
OUT
LO
LO
R AND S SPECTRUM ANALYZER
OUTPUT
F-MOD TEST SETUP
FSU 20Hz TO 8GHz
+6dBm
RF
IN
IOS
and V
IOS
and V
QOS
QOS
.