Data Sheet

ADL6337

35 dB Gain, 500 MHz to 5200 MHz Transmit VGA

Rev. B

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FEATURES

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Single-channel, high-linearity transmit VGA for RF DACs, trans-

ceivers, and SoCs to power amplifier interface

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Single 5 V supply

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Multiple versions covering frequencies of 500 MHz to 5200 MHz

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Power gain: 37.4 dB (ADL6337-A), 35.5 dB (ADL6337-B)

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OIP3: 42.0 dBm (ADL6337-A), 42.5 dBm (ADL6337-B)

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OIP2: 50 dBm (ADL6337-A), 55 dBm (ADL6337-B)

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Noise figure: 3.7 dB (ADL6337-A), 4.5 dB (ADL6337-B)

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OP1dB: 26.1 dBm (ADL6337-A), 26.0 dBm (ADL6337-B)

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RF DSA attenuation range: 31.5 dB with 0.5 dB resolution

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50 Ω/100 Ω differential inputs and 50 Ω single-ended output

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Fully programmable via a 3-/4-wire SPI

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32-lead, 5 mm × 5 mm LFCSP

APPLICATIONS

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

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Communication systems

GENERAL DESCRIPTION

The ADL6337 belongs to a family of transmit variable gain ampli-

fiers (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 germani-

um (SiGe), bipolar complementary metal-oxide semiconductor (BiC-

MOS) process.

Table 1. ADL6337 Frequency Ranges

ADL6337 Variant

Frequency Range (MHz)

A

500 to 1000

B

1350 to 2800

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram