Analog Devices ADRV9005 Reference Manual page 281

Reference Manual
RF PORT INTERFACE INFORMATION
The ADRV9001 evaluation board provides two options in providing the DC common-mode bias for the transmitter outputs. For transformers that
provide a DC feed pin, use this to bias the transmitter output. For transformers that do not provide a DC feed pin, bias the transmitter outputs to
1.8 V through pull-up inductors. Choose only one bias option, and disable the unused path.
The PCB traces of the evaluation board are included in the simulation when designing the impedance match.
impedance matching networks specific to the ADRV9001 evaluation board. The component values apply to TX1± and TX2±. Place the C335
close to the DC feed pin of balun T302 as its purpose is to eliminate transmitter spectrum spurs and dampen the transients. Tie the ground
terminal of the C335 to a ground plane and orient the cap in the same direction as the ground plane surrounding the transmitter input trace so
that the return current forms as small a loop as possible with the ground plane.
Table 114. TX1± and TX2± Impedance Matching Network
Frequency Balun L/C 311
30MHz –
MiniCircuits L311:
3GHz
TC-1-13M+ DNI
C311:
0.3pF
(Murata
GJM03)
3GHz –
Johanson L311:
6GHz
4400 DNI
C311:
0.2pF
(Murata
GJM03)
analog.com
Figure 265. TX1 and TX2 Impedance Matching Network
L309 C309 L/C/R 312
L310 C310 L/C/R 313
L309/310: C309/ L312/313:
220nH C310: 1.2nH
(CoilCraft 10nF AVX Ind
LQW18AN (Murata L0201
) GRM03) Series
C312/313:
DNI
R312/313:
DNI
L309/310: C309/
L312/313:
DNI C310: DNI
0.68nH
AVX Ind
(L0201
Series)
C312/313:
DNI
C346/34
7 C333
L339 R367/36 C334
C339 8 C335
R361
R361:
L339: C346/34 C333:
DNI
DNI 7: DNI
C339: 330pF C334:
0.8pF (Murata DNI
(Murata GRM03) C335:
GJM03) R367, DNI
R368:
DNI
L339: C346/34 R361: C333:
DNI 7: DNI 27nH 10µF
C339: R367/36 Murata C334:
0.3pF 8: 0Ω Ind 0.1µF
(Murata (LQW18) C335:
GJM03) 2.7pF
ADRV9001
Figure 265 and Table 114
L/C/R L/C/R L/C/R
341 348 L/C 314 315
L341: L348: L314: L315:
DNI 2.2nH DNI 2.2nH
C341: AVX C314: AVX Ind
DNI Ind 1pF (L0201
R341: (L020 (Murata Series)
DNI 1 Ser- GJM03) C315:
ies DNI
C348: R315:
DNI DNI
R348:
DNI
L341: L348: L314: L315:
0.33nH DNI DNI 0.82nH
AVX C348: C314: AVX Ind
Ind DNI 0.3pF (L0201
(L0201 R348: (Murata Series)
Series) DNI GJM03) C315:
DNI
Rev. A | 281 of 377
provide
L/C 316
L316:
DNI
C316:
DNI
L316:
DNI
C316:
DNI