ADL5231-EVALZ AD [Analog Devices], ADL5231-EVALZ Datasheet - Page 7

• Manufacturer Part Number: ADL5231-EVALZ
• Description: 2.3 GHz to 4.0 GHz RF Driver Amplifier
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
EVALUATION BOARD
The basic connections for operating the ADL5321 are shown in
Figure 8. The inputs and outputs should be ac coupled with
appropriately sized capacitors. DC bias is provided to the
amplifier via an inductor connected to the RF output pin. A bias
voltage of 5 V is recommended.
Table 4. Matching Component Spacing 2500 MHz - 2700 MHz
λ 1
240 mils
1
Table 5. Evaluation Board Configuration Options 2500 MHz - 2700 MHz
Component
R1
C1
C2
C3
C4, C5, C6
L1
Vsup, Gnd
50 ohm traces 25 mils wide substrate used is FR4.
1
RFIN
Function
jumper
Tuning capacitor
AC - coupling capacitor
Tuning capacitors
Power supply bypassing capacitors
DC bias inductor
Power supply connections
λ 2
75 mils
R1
0 ohm
Figure 8. Basic Connections default condition is for 2500 MHz to 2700 MHz
C1
1.0 pF
1
λ 3
89 mils
1
ADL5321
Rev. PrB | Page 7 of 9
(2)
2
3
λ 4
325 mils
Gnd
2
Figure 7. Evaluation Board Layout showing component placement 2500
Vsup
L1
9.5 nH
C6 10 uF
C4 10 pF
C5 10 nF
3
C3
1.2 pF
MHz to 2700 MHz operation
4
C2
10 pF
Default Value
0402 0 ohm
0402 1.0 pF
0402 10 pF
C3 0402 1.2 pF
C4 0603 10 pF
C5 0603 10 nF
C6 1206 10μF
0603 9.5 nH
Vsup red testloop
Gnd Black testloop
RFOUT
ADL5321