100 MHz to 4000 MHz, Digitally Controlled RF Dual VGA Data Sheet ADRF6573 FEATURES FUNCTIONAL BLOCK DIAGRAM Operating frequency range: 100 MHz to 4000 MHz Dual independent, digitally controlled VGA RFIN1 RFOUT1 DSA1 AMP1 Single serial interface control for both channels 6-bit, 0.5 dB digital step attenuator 30.8 dB gain control range with 0.15 dB gain accuracy at LE 2140 MHz DATA 12-BIT SPI CLK 17.8 dB gain at minimum attenuation at 2140 MHz P1dB of 19.2 dBm at 2140 MHz OIP3 of 40.0 dBm at 2140 MHz RF input and RF output internally matched to 50 RFIN2 RFOUT2 DSA2 AMP2 Channel to channel isolation of 50 dB at 2140 MHz Single-supply operation from 4.75 V to 5.25 V Figure 1. Thermally efficient, 7 mm 7 mm 1.0 mm, 32-terminal LGA The companion ADL5240 integrates a gain block with a DSA APPLICATIONS Wireless infrastructure Automated test equipment RF/IF gain controls GENERAL DESCRIPTION The ADRF6573 is a high performance, digitally controlled, dual The device is internally matched to 50 at the input and output. variable gain amplifier (VGA) operating from 100 MHz to Only input/output ac coupling capacitors and power supply 4000 MHz. Each channel includes a 6-bit digital step attenuator decoupling capacitors are required for operation. (DSA) with a 31.5 dB gain control range, 0.5 dB steps, and The ADRF6573 consumes 85 mA per channel and operates 0.25 dB gain accuracy. The attenuation of the DSA is controlled from a single supply ranging from 4.75 V to 5.25 V. It is fully using a serial peripheral interface (SPI). The SPI is a serial in, specified for operation from 40C to +85C. parallel out shift register buffered by a transparent latch. It is The ADRF6573 is packaged in a 32-terminal, 7 mm 7 mm controlled by three CMOS-compatible signals: data, clock, and 1.0 mm, land grid array (LGA) package. latch enable. The amplifier in each channel is a broadband linear amplifier that operates up to 4000 MHz. Rev. 0 Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 2014 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. OBSOLETE 11666-001ADRF6573 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................8 Applications ....................................................................................... 1 Applications Information .............................................................. 12 Functional Block Diagram .............................................................. 1 Basic Layout Connections ......................................................... 12 General Description ......................................................................... 1 SPI Timing................................................................................... 13 Revision History ............................................................................... 2 SPI Timing Sequence ................................................................. 13 Specifications ..................................................................................... 3 Thermal Considerations ............................................................ 14 Absolute Maximum Ratings ............................................................ 6 Evaluation Board ............................................................................ 15 Thermal Resistance ...................................................................... 6 Outline Dimensions ....................................................................... 17 ESD Caution .................................................................................. 6 Ordering Guide .......................................................................... 17 Pin Configuration and Function Descriptions ............................. 7 REVISION HISTORY 7/14Revision 0: Initial Version Rev. 0 Page 2 of 17 OBSOLETE