ADL5592-EVALZ AD [Analog Devices], ADL5592-EVALZ Datasheet - Page 16

• Manufacturer Part Number: ADL5592-EVALZ
• Description: 250 MHz to 2400 MHz RF Variable Gain Amplifier
• Manufacturer: AD [Analog Devices]

ADL5592
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.
SPI_DATA-A
SPI_CLK-A
SPI_SEL-A
LBENBA
R12A
10kΩ
MX_OUTA
TP1A
R8A
VPOS
0Ω
SW1A
R9A
0Ω
R3A
OPEN
VPOS
0.1µF
C7A
SW2A
0
LOPA
0
R10A
0Ω
R2A
OPEN
VPOS
1000pF
C5A
0.1µF
C1A
R5A
0Ω
TO
HEADER
0.1µF
R11A
0Ω
R1A
OPEN
R4A
C3A
0Ω
0.1µF
C2A
C6A
100pF
C4A
100pF
Figure 24. Evaluation Board Schematic
LOIP
LOIN
VCC
LOOP OUT
LOOP EN
DATA
CLK
LE
DVCC
GND
1000pF
1000pF
Rev. 0 | Page 16 of 20
C14A
C17A
ADL5592
IN_ATTA
RF_OUTA
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.
GND
GND
GND
GND
GND
VCC
NC
NC
NC
NC
VPOS
TP1A
OPEN
C9A
(COILCRAFT 0603CS)
OPEN
TP2A
C8A
33nH OR 270nH
L2A
100pF
C10A
C11A
10µF
VPOS