700 MHz to 4200 MHz,
Tx DGA
ADL5335 Data Sheet
FEATURES FUNCTIONAL BLOCK DIAGRAM APPLICATIONS VPOS2 VPOS3 1 4 13 ADL5335
RFIN– 2 12dB
0dB TO –20dB RFIN+ 3 5 RF power control and calibration in wireless transmitters VPOS1 6 7 8 9 GND1 GND2 GND3 GND4 GND5 11 ENBL 10 RFOUT 16 CS 15 SCLK 14 SDIO 12 FA
16304-001 Differential input to single-ended output conversion
Broad input frequency range: 700 MHz to 4200 MHz
Maximum gain: 12.0 dB typical
Gain range of 20 dB typical
Gain step size: 0.5 dB typical
Glitch free, thermometer-based digital step attenuator
Fast attack, gain switching with programmable gain step
Matched 50 Ω inputs and output Figure 1. GENERAL DESCRIPTION
The ADL5335 is a digital gain amplifier (DGA) optimized for
use in wireless transmitters. A differential input and singleended output facilitates a balun free connection between the
broadband integrated transceivers with differential outputs and
the RF gain blocks and drivers amplifiers with single-ended inputs.
The gain is programmable via a standard Analog Devices, Inc.,
serial peripheral interface (SPI) port from a maximum gain of
12.0 dB down to a minimum gain of −8.0 dB with a gain step Rev. 0 size of 0.5 dB. The ADL5335 also features a fast attack function
where the gain can rapidly increase or decrease by the
application of a single pulse. …