1.0 GHz DGA with 30 dB Range and 1 dB Step Size Data Sheet ADL5206 FEATURES FUNCTIONAL BLOCK DIAGRAM SPI/PARALLEL Digitally controlled VGA INTERFACE VPOS EPAD PWUP 2 dB to 32 dB gain range 1 dB gain step size ADL5206 MODEx LOGIC 100 differential input resistance 10 differential output resistance VIN 32dB VOUT+ Noise figure: 5.1 dB at 300 MHz, 5 V supply, and TO 100 10 2dB VIN+ VOUT maximum gain OIP3 at maximum gain 39.4 dBm at 300 MHz at 5 V supply 38.1 dBm at 700 MHz at 5 V supply Figure 1. Gain step accuracy: 0.2 dB 3 dB bandwidth at 32 dB: 1.0 GHz typical at 5 V supply Multiple control interface options Parallel 5-bit control interface with latch 3- and 4-wire SPI with fast attack Gain step-up and step-down interface Wide input dynamic range Power-down control Single 3.3 V or 5 V supply operation 112 mA quiescent current at 5 V supply 20-lead, 4 mm 4 mm LFCSP APPLICATIONS Differential ADC drivers High intermediate frequency (IF) sampling receivers High output power IF amplification DOCSIS FDx upstream amplifier Instrumentation GENERAL DESCRIPTION The ADL5206 is a wide bandwidth, variable gain amplifier (VGA) current of the ADL5206 is typically 112 mA with a 5 V supply. with digital control (also known as a digital gain amplifier (DGA)) When disabled, the ADL5206 consumes only 8 mA and offers that provides precise gain control, high output third-order excellent input to output isolation. The gain setting is preserved intercept (OIP3), and low noise figure over the entire gain when the device is disabled. range. The excellent OIP3 performance of 39.4 dBm (at 300MHz, Fabricated on the Analog Devices, Inc., high speed, silicon 5 V supply, and maximum gain) makes the ADL5206 an excellent germanium (SiGe), bipolar complementary metal-oxide gain control device for a variety of receiver applications. semiconductor (BiCMOS) process, the ADL5206 provides For wide input dynamic range applications, the ADL5206 precise gain adjustment capabilities with good distortion provides a broad 2 dB to 32 dB gain range with a 1 dB step size. performance. The ADL5206 amplifier comes in a compact, The gain is adjustable through multiple gain control and interface thermally enhanced, 4 mm 4 mm, 20-lead LFCSP and options: parallel, serial peripheral interface (SPI), or gain step-up operates over the temperature range of 40C to +85C. and step-down controls. Note that throughout this data sheet, multifunction pins, such The ADL5206 can be powered up independently by applying as CS/GS1/D3, are referred to by the entire pin name or by a the appropriate logic level to the PWUP pin. The quiescent single function of the pin. 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. Tel: 781.329.4700 2020 Analog Devices, Inc. All rights reserved. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 24682-001ADL5206 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Basic Structure ............................................................................ 19 Applications ...................................................................................... 1 Control and Logic Circuitry ..................................................... 19 Functional Block Diagram .............................................................. 1 Common-Mode Voltage ........................................................... 19 General Description ......................................................................... 1 Register Summary and Details ..................................................... 20 Revision History ............................................................................... 2 Applications Information ............................................................. 21 Specifications .................................................................................... 3 Basic Connections ...................................................................... 21 Timing Specifications .................................................................. 6 Digital Interface Overview ........................................................ 22 Absolute Maximum Ratings ........................................................... 7 SPI Read ....................................................................................... 23 Thermal Resistance ...................................................................... 7 ADC Interfacing ......................................................................... 24 Junction to Board Thermal Impedance .................................... 7 Noise Figure vs. Gain Setting ................................................... 24 ESD Caution.................................................................................. 7 Outline Dimensions ....................................................................... 25 Pin Configuration and Function Descriptions ............................ 8 Ordering Guide .......................................................................... 25 Typical Performance Characteristics ........................................... 10 Theory of Operation ...................................................................... 19 REVISION HISTORY 9/2020Revision 0: Initial Version Rev. 0 Page 2 of 25