ADL5321-EVALZ AD [Analog Devices], ADL5321-EVALZ Datasheet - Page 13

• Manufacturer Part Number: ADL5321-EVALZ
• Description: 2.3 GHz to 4.0 GHz RF Driver Amplifier
• Manufacturer: AD [Analog Devices]

EVALUATION BOARD
The schematic of the ADL5321 evaluation board is shown in
Figure 27. This evaluation board uses 25 mil wide traces and is
made from IS410 material (lead-free version of FR4). The
evaluation board comes tuned for operation in the 2500 MHz to
2700 MHz tuning band. Tuning options for other frequency bands
Table 9. Evaluation Board Configuration Options
Component
C1, C2
C4, C5, C6
L1
C3, C7
VCC, GND
Table 10. Recommended Component Spacing on Evaluation Board
Frequency (MHz)
2500 to 2700
3400 to 3850
Function
AC coupling capacitors
Power supply bypassing capacitors
DC bias inductor
Tuning capacitors
Power supply connections
RF
IN
C1
1.0pF
Figure 27. Evaluation Board, 2500 MHz to 2700 MHz
C7
OPEN
λ
1
λ1 (mils)
240
90
1
ADL5321
Rev. 0 | Page 13 of 16
(2)
2
3
GND
2500 MHz to 2700 MHz
C1 = 0402, 1.0 pF
C2 = 0402, 10 pF
C4 = 0603, 10 pF
C5 = 0603, 10 nF
C6 = 1206, 10 μF
0603, 9.5 nH
C3 = 0402, 1.2 pF
C7 = 0402, open
VCC, red test loop
GND, black test loop
λ
2
are also provided in Table 9. The recommended placement for
these components is provided in Table 10. 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 RFOUT pin. A bias voltage of 5 V is recommended.
VCC
λ2 (mils)
75
35
L1
9.5nH
C6 10µF
C5 10nF
C4 10pF
λ
3
C3
1.2pF
λ4
C2
10pF
RF
λ3 (mils)
89
40
OUT
3400 MHz to 3850 MHz
C1 = 0402, 10 pF
C2 = 0402, 10 pF
C4 = 0603, 10 pF
C5 = 0603, 10 nF
C6 = 1206, 10 μF
0603, 9.5 nH
C3 = 0402, 1.2 pF
C7 = 0402, 1.0 pF
VCC, red test loop
GND, black test loop
λ4 (mils)
325
416
ADL5321