GENERAL DESCRIPTION
The ADL6337 belongs to a family of transmit variable gain amplifiers
(VGAs). It provides an interface from RF digital-to-analog
converters (DACs), transceivers, and systems on a chip (SoC)
to power amplifiers. It also includes an integrated RF balun and
can be configured as a differential input, single-ended output to
allow high-performance RF capability in the 500 MHz to 5200 MHz
frequency range.
To optimize performance vs. power level, the ADL6337 includes
high linearity amplifiers and a digital step attenuator (DSA). All of
the ADL6337 components are programmable via a 3- or 4-wire
serial port interface (SPI).
The ADL6337 is manufactured on an advanced silicon germanium
(SiGe), bipolar complementary metal-oxide semiconductor (BiCMOS) process.

FEATURES
► Single-channel, high-linearity transmit VGA for RF DACs, transceivers,
and SoCs to power amplifier interface
► Single 5 V supply
► Multiple versions covering frequencies of 500 MHz to 5200 MHz
► Power gain: 37.4 dB (ADL6337-A), 35.5 dB (ADL6337-B)
► OIP3: 42.0 dBm (ADL6337-A), 42.5 dBm (ADL6337-B)
► OIP2: 50 dBm (ADL6337-A), 55 dBm (ADL6337-B)
► Noise figure: 3.7 dB (ADL6337-A), 4.5 dB (ADL6337-B)
► OP1dB: 26.1 dBm (ADL6337-A), 26.0 dBm (ADL6337-B)
► RF DSA attenuation range: 31.5 dB with 0.5 dB resolution
► 50 Ω/100 Ω differential inputs and 50 Ω single-ended output
► Fully programmable via a 3-/4-wire SPI
► 32-lead, 5 mm × 5 mm LFCSP

APPLICATIONS
► 2G/3G/4G/long-term evolution (LTE) in FDD/TDD broadband
► Communication systems