ADL5592

Rev. 0 | Page 16 of

20

SCHEMATIC AND LAYOUT

Figure 24 shows the schematic and Figure 25 and Figure 26 show

the layout of the ADL5592 evaluation board. The board is powered

by a single supply in the 4.75 V to 5.25 V range. Each power supply

pin should be decoupled using a 100 pF capacitor in addition to

either a 0.1 μF or 10 μF capacitor. Table 6 details the various

configuration options of the evaluation board.

The RFIN, RFOUT, and LOOP OUT pins have 50 Ω impedances

and must be ac-coupled. One of the supply pins (Pin 21) requires

supply biasing using an RF choke (Coilcraft 0603CS). The value

of the inductor is dictated by the frequency band of operation:

270 nH for the 450 MHz, 850 MHz, and 900 MHz bands and

33 nH for the 1800 MHz and 1900 MHz bands.

LOIP

LOIN

VCC

LOOP OUT

LOOP EN

DATA

CLK

LE

DVCC

GND

GND

NC

NC

NC

GND

GND

GND

NC

GND

VCC

ADL5592

C2A

0.1µF

C1A

1000pF

C3A

0.1µF

LOPA

R5A

0Ω

VPOS

C7A

0.1µF

C6A

100pF

MX_OUTA

LBENBA

SW1A

SW2A

R8A

0Ω

R12A

10kΩ

0

0

TO

HEADER

R9A

0Ω

R10A

0Ω

R11A

0Ω

R3A

OPEN

R2A

OPEN

R1A

OPEN

SPI_DATA-A

SPI_CLK-A

SPI_SEL-A

C5A

0.1µF

C4A

100pF

VPOS

TP1A

IN_ATTA

C17A

1000pF

C14A

1000pF

RF_OUTA

TP2A

TP1A

C10A

100pF

C11A

10µF

L2A

33nH OR 270nH

(COILCRAFT 0603CS)

C9A

OPEN

C8A

OPEN

VPOS

VPOS

R4A

0Ω

VPOS

Figure 24. Evaluation Board Schematic