ADL5562-EVALZ AD [Analog Devices], ADL5562-EVALZ Datasheet - Page 18

• Manufacturer Part Number: ADL5562-EVALZ
• Description: 3.3 GHz Ultralow Distortion RF/IF Differential Amplifier
• Manufacturer: AD [Analog Devices]

ADL5562
LAYOUT CONSIDERATIONS
High-Q inductive drives and loads, as well as stray transmission
line capacitance in combination with package parasitics, can
potentially form a resonant circuit at high frequencies, resulting
in excessive gain peaking or possible oscillation. If RF transmission
lines connecting the input or output are used, they should be
designed such that stray capacitance at the input/output pins is
Table 10. Gain Setting and Input Termination Components for Figure 41
A
6
12
15.5
Table 11. Output Matching Network for Figure 41
R
200
1 k
Table 12. Gain Setting and Input Termination Components for Figure 42
A
6
12
15.5
Table 13. Output Matching Network for Figure 42
R
200
1 k
L
L
V
V
(Ω)
(Ω)
(dB)
(dB)
R7 (Ω)
84.5
487
R1 (Ω)
29
33
40.2
R1 (Ω)
67
100
200
R7 (Ω)
50
475
ETC1-1-13
PORT 1
PORT 3
Figure 42. Differential Characterization Circuit Using Agilent E8357A 4-Port PNA
R1
R2
R2 (Ω)
29
33
40.2
R8 (Ω)
84.5
487
R1
R2
R2 (Ω)
67
100
200
R8 (Ω)
50
475
0.1µF
0.1µF
Figure 41. General Purpose Characterization Circuit
R3
R4
R5
R6
R3
R4
R5
R6
VIP2
VIP1
VIN1
VIN2
ADL5562
VIP2
VIP1
VIN1
VIN2
Rev. A | Page 18 of 24
R3 (Ω)
Open
0
0
R9 (Ω)
34.8
25
R3 (Ω)
R9 (Ω)
Open
61.9
Open
0
0
ADL5562
VOP
VON
VOP
VON
minimized. In many board designs, the signal trace widths
should be minimal where the driver/receiver is more than one-
eighth of the wavelength from the amplifier. This nontransmission
line configuration requires that underlying and adjacent ground
and low impedance planes be dropped from the signal lines
0.1µF
0.1µF
R4 (Ω)
R10 (Ω)
34.8
25
0
Open
0
R4 (Ω)
0
Open
0
R10 (Ω)
Open
61.9
R7
R8
R10
R9
R7
R8
R10
R9
ETC1-1-13
PORT 2
PORT 4
R5 (Ω)
0
Open
0
R5 (Ω)
0
Open
0
SPECTRUM
ANALYZER
R6 (Ω)
Open
0
0
R6 (Ω)
Open
0
0