Data Sheet

ADL5335

Rev. 0 | Page 15 of 16

APPLICATIONS INFORMATION

BASIC CONNECTIONS

Figure 25 shows the basic connections for operating the

ADL5335. Apply a 5 V voltage to the supply pins (VPOS1,

VPOS2, and VPOS3). Decouple each supply pin with at least

one low inductance, surface-mount ceramic, 0.1 μF capacitor

placed as close to the device as possible. The balanced differential

inputs are decoupled using 100 pF capacitors and so is the 50 Ω

load on the RF output. The serial peripheral interface pins (SCLK,

SDIO, and CS), fast attack (FA), and enable (ENBL) pins

operate at an 1.8 V voltage. To enable the ADL5335, pull the

ENBL pin high (1.8 V). A low on the ENBL pin sets the device

to power-down mode, reducing the current to approximately

3.7 mA.

For additional information on device operation, see the

EV-ADL5335SD1Z User Guide.

12

11

10

1

3

4

9

2

VPOS1

RFIN–

RFIN+

VPOS2

FA

ENBL

RFOUT

GND5

ADL5335

0.1µF

SERIAL PERIPHERAL INTERFACE

100pF

0.1µF

100pF

BALANCED SOURCE

100pF

100pF

100pF

0.1µF

100pF

50Ω LOAD

1.8V

1.8V

NOTES

1. THE 100pF CAPACITORS ON THE RFIN– AND RFIN+ PINS ARE

OPTIONAL BECAUSE THE DEVICE IS INTERNALLY AC-COUPLED.

Figure 25. Basic Connections