ADL5565 AD [Analog Devices], ADL5565 Datasheet - Page 22

• Manufacturer Part Number: ADL5565
• Description: 6 GHz Ultrahigh Dynamic Range Differential Amplifier
• Manufacturer: AD [Analog Devices]

ADL5565
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, design them such
that stray capacitance at the input/output pins is minimized. In
Table 11. Gain Setting and Input Termination Components for Figure 42
A
6
12
15.5
Table 12. Output Matching Network for Figure 42
R
200
Table 13. Gain Setting and Input Termination Components for Figure 43
A
6
12
15.5
Table 14. Output Matching Network for Figure 43
R
200
L
L
V
V
(Ω)
(Ω)
(dB)
(dB)
R7 (Ω)
84.5
R1 (Ω)
100
Open
Open
R1 (Ω)
29
33
40.2
R7 (Ω)
50
ETC1-1-13
PORT 1
PORT 3
Figure 43. Differential Characterization Circuit Using Agilent E8357A Four-Port PNA
R1
R2
0.1µF
0.1µF
R2 (Ω)
29
33
40.2
R8 (Ω)
84.5
R2 (Ω)
100
Open
Open
R8 (Ω)
50
R1
R2
Figure 42. General-Purpose Characterization Circuit
R3
R4
R5
R6
R3
R4
R5
R6
VIP2
VIP1
VIN1
VIN2
ADL5565
VIP2
VIP1
VIN1
VIN2
Rev. 0 | Page 22 of 28
R3 (Ω)
Open
0
0
R9 (Ω)
34.8
R9 (Ω)
Open
R3 (Ω)
Open
0
0
ADL5565
VOP
VON
VOP
VON
many board designs, the signal trace widths should be minimal
where the driver/receiver is no more than one-eighth of the
wave-length 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)
Open
R10 (Ω)
34.8
0
0
R4 (Ω)
0
Open
0
R10 (Ω)
Open
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