ADL5531

Rev. 0 | Page 10 of 12

EVALUATION BOARD

Figure 18 shows the schematic for the ADL5531 evaluation

board. The board is powered by a single supply of 5 V.

The components used on the board are listed in Table 5. Power

can be applied to the board through clip-on leads or through

Jumper W1. Note that C4, C7, C8, L3, L4, L5, R1, and R2 have

no function.

Figure 16. Evaluation Board Layout (Bottom)

Figure 17. Evaluation Board Layout (Top)

5

CLIN

8

NC

NC

NC = NO CONNECT

Z1

RFIN

RFOUT

L1

470nH

L5

OPEN

L4

OPEN

4

6

NC

RFIN

2

7

RFOUT

NC

3

NC

ADL5531

1

C1

10nF

C3

1nF

C7

OPEN

R2

OPEN

C5

10nF

C2

10nF

C4

OPEN

C8

OPEN

C6

1µF

L3

OPEN

L2

0Ω

VPOS

(TESTLOOP RED)

GND

(TESTLOOP BLACK)

W1

R1

OPEN

Figure 18. Evaluation Board Schematic

Table 5. Evaluation Board Configuration Options

Component

Function

Default Value

Z1

DUT

ADL5531

C1, C2

AC coupling capacitors

10 nF, 0402

C3

Linearizer capacitor

1 nF, 0603

C5

Power supply decoupling capacitor

10 nF, 0603

C6

Power supply decoupling capacitor

1 μF, 0603

C4, C7, C8

Open

R1, R2

Open

L1

DC bias inductor

470 nH, 1008 (Coilcraft 1008CS-471XJLC or equivalent)

L2

0 Ω, 0402

L3, L4, L5

Open

VPOS, GND

Clip-on terminals for power supply

VPOS, GND

W1

2-pin jumper for connection of ground and supply via cable

W1

RFIN, RFOUT

50 Ω SMA female connectors

RFIN, RFOUT