Data Sheet

ADL6337

35 dB Gain, 500 MHz to 5200 MHz Transmit VGA

Rev. E

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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), 34 dB

(ADL6337-C), 35.5 dB (ADL6337-D)

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OIP3: 42.0 dBm (ADL6337-A), 42.5 dBm (ADL6337-B), 38 dBm

(ADL6337-C), 40 dBm (ADL6337-D)

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OIP2: 50 dBm (ADL6337-A), 55 dBm (ADL6337-B), 68 dBm

(ADL6337-C), 74 dBm (ADL6337-D)

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Noise figure: 3.7 dB (ADL6337-A), 4.5 dB (ADL6337-B), 5.2 dB

(ADL6337-C), 4.5 dB (ADL6337-D)

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OP1dB: 26.1 dBm (ADL6337-A), 26.0 dBm (ADL6337-B), 25.5

dBm (ADL6337-C), 23.5 dBm (ADL6337-D)

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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 glitch free 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

C

3100 to 4400

D

4400 to 5200

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram