ADL5370(RevA) Просмотр технического описания (PDF) - Analog Devices
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ADL5370 Datasheet PDF : 20 Pages
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Data Sheet
ADL5370
CHARACTERIZATION SETUP
AEROFLEX IFR 3416
250kHz TO 6GHz SIGNAL GENERATOR
FREQ 4MHz LEVEL 0dBm
BIAS 0.5V GAIN 0.7V
BIAS 0.5V GAIN 0.7V
RF
OUT
R AND S SPECTRUM ANALYZER
FSU 20Hz TO 8GHz
LO
CONNECT TO BACK OF UNIT
I OUT I/AM Q OUT Q/FM
90°
I
Q
0°
RF
+6dBm
IN
AGILENT 34401A
MULTIMETER
0.175 ADC
VPOS +5V
AGILENT E3631A
POWER SUPPLY
5.000 0.175A
IP FMOD
LO
IN
QP
OUT
QN
VPOS GND
FMOD TEST SETUP
OUTPUT
6V
+–
±25V
+ COM –
Figure 38. Characterization Bench Setup
The primary setup used to characterize the ADL5370 is shown
in Figure 38. This setup was used to evaluate the product as a
single-sideband modulator. The Aeroflex signal generator supplied
the local oscillator (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.
The majority of characterization for the ADL5370 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 VIOS1 and VQOS
offsets on the baseband inputs were minimized, as close as
possible, to 0 V before connecting to the DUT.
1 See the Carrier Feedthrough Nulling section for the definitions of VIOS and
VQOS.
Rev. A | Page 17 of 20
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