Analog Devices AD6122 Manual page 6

AD6122
RF SOURCE
Figure 2. IF Amplifier's Characterization Input and Output Impedance Matches
NOTE: RF CABLES FOR I AND Q PATHS MUST BE OF EQUAL LENGTH
TEKTRONIX
AFG2002
R&S
SMT03
RF
RF SOURCE 1
R&S
SMT03
RF
RF SOURCE 2
PULL-UP INDUCTORS CHOSEN
FOR PEAK RESPONSE AT THE
TEST FREQUENCY.
1:8
383
10nF
511
383
10nF
TEST BED MOTHERBOARD
I DATA
500mVp-p DIFFERENTIAL
Q DATA
HPE3610
POWER SUPPLY
Figure 3. General Test Set
VREG OUT
0.1 F
453
IFINP TXOPP
10nF
205
IFINN
TXOPN
453
10nF
AD6122
0.1 F
VREG OUT
I CHANNEL
MOD OUT
Q CHANNEL
IFTX OUT
LO INPUT
IF IN
TO RF SWITCHES
HP34970A
DATA ACQUISITION
& SWITCH CONTROL
DC MEASUREMENTS
& CONTROL BITS
–6–
TO
4:1
SPECTRUM
ANALYZER
R&S FSEA20/30
SPECTRUM
RF
ANALYZER
INPUT
AUX MEAS
PORT
REV. B