ADL5606

Rev. 0 | Page 13 of 20

APPLICATIONS INFORMATION

BASIC LAYOUT CONNECTIONS

The basic connections for operating the ADL5606 are shown

in Figure 31. The RF matching components correspond to the

2140 MHz frequency tuning band.

Power Supply

The voltage supply for the ADL5606, which ranges from 4.75 V

to 5.25 V, should be connected to the VCC1 test pin. The dc bias

to the output stage is supplied through L1 and is connected to

the RFOUT pin. Three decoupling capacitors (C7, C8, and C9)

are used to prevent RF signals from propagating on the dc lines.

The VBIAS and VCC pins can be directly connected to the main

supply voltage. Additional decoupling capacitors (C5, C6, and

C11) are required on the VCC pin.

RF Input Interface

Pin 1 is the RF input pin for the ADL5606. The RF input is easily

matched with one capacitor, in a series or shunt configuration,

and a microstrip line used as an inductor. For the 1960 MHz and

2140 MHz frequency tuning bands, a shunt capacitor is used to

match the input to 50 Ω; for the 2630 MHz frequency tuning

band, a series capacitor is used.

For complete information about component values and spacing

for the different frequency tuning bands, see the ADL5606

Matching section.

RF Output Interface

Pin 9 to Pin 12 are the RF output pins. The RF output requires

only one shunt capacitor and a microstrip line used as an inductor

to match to 50 Ω. For complete information about component

values and spacing for the different frequency tuning bands, see

the ADL5606 Matching section.

Power-Down

The ADL5606 can be disabled by connecting the DISABLE pin

to 5 V. When disabled, the ADL5606 draws approximately 4 mA

of current from the power supply and 1.4 mA from the DISABLE

pin. Decoupling Capacitor C3 is recommended to prevent the

propagation of RF signals. To completely shut down the device,

connect the VCC pin, the VBIAS pin, and the VCC1 test pin to

ground. In this state, the part draws approximately 1.4 mA from

the DISABLE pin.

RFIN

VCC

DISABLE

RFOUT

12

VBIAS

11

VCC

10

DISABLE

9

RFIN

1

2

3

4

ADL5606

VCC1

3.9pF

C2

20pF

C1

20pF

1.3pF

C3

10pF

C5

100pF

C7

100pF

C8

0.01µF

C9

10µF

RFOUT

RFOUT

RFOUT

RFOUT

13

8

14

7

15

6

16

5

NC NC

NC

NC

NC NC

NC

NC

C6

0.01µF

C11

10µF

L1

18nH

Figure 31. Basic Connections