0.1 GHz to 3 GHz,1 dB LSB, 5-Bit, GaAs Digital Attenuator Data Sheet HMC470A FEATURES FUNCTIONAL BLOCK DIAGRAM Attenuation range: 1 dB LSB steps to 31 dB Insertion loss: 1.7 dB typical at 3 GHz Excellent attenuation accuracy: 0.3 dB typical High Input linearity 0.1dB compression (P0.1dB): 27 dBm typical VDD 1 12 V1 Third-order intercept (IP3): 48 dBm typical RF1 2 11 RF2 High power handling: 27 dBm Low phase shift: 27 at 3 GHz 3 10 NIC NIC Single-supply operation: 3 V to 5 V 4 9 ACG1 ACG6 CMOS-/TTL-compatible parallel control HMC470A 16-lead, 3 mm 3 mm LFCSP package APPLICATIONS PACKAGE BASE Cellular infrastructure GND Microwave radios and very small aperture terminals (VSATs) Figure 1. Test equipment and sensors IF and RF designs GENERAL DESCRIPTION The HMC470A is a 5-bit digital attenuator with a 31 dB The HMC470A operates with a single positive supply voltage attenuation control range in 1 dB steps. from 3 V to 5 V and provides CMOS-/TTL-compatible parallel control interface by incorporating an on-chip driver. The The HMC470A offers excellent attenuation accuracy and high HMC470A comes in a RoHS compliant, compact, 3 mm 3 mm input linearity over the specified frequency range from 100 MHz to LFCSP package. 3 GHz. However, this digital attenuator features ACG pins for external ac grounding capacitors to extend the operation below 100 MHz. Rev. A 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 2017 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. 1dB ACG2 V5 2dB V4 ACG3 4dB ACG4 V3 8dB ACG5 V2 16dB 14806-001 5 16 6 15 7 14 8 13HMC470A Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Insertion Loss, Return Loss, State Error, Step Error, and Relative Phase ................................................................................6 Applications ....................................................................................... 1 Input Power Compression and Third-Order Intercept ............8 Functional Block Diagram .............................................................. 1 Theory of Operation .........................................................................9 General Description ......................................................................... 1 Power Supply ..................................................................................9 Revision History ............................................................................... 2 RF Input and Output ....................................................................9 Specifications ..................................................................................... 3 ACGx Pins ......................................................................................9 Absolute Maximum Ratings ............................................................ 4 Applications Information .............................................................. 10 Thermal Resistance ...................................................................... 4 Evaluation Board ........................................................................ 10 ESD Caution .................................................................................. 4 Outline Dimensions ....................................................................... 11 Pin Configuration and Function Descriptions ............................. 5 Ordering Guide .......................................................................... 11 Interface Schematics..................................................................... 5 Typical Performance Characteristics ............................................. 6 REVISION HISTORY 9/2017Rev. 01.0716 to Rev. A This Hittite Microwave Products data sheet has been reformatted to meet the styles and standards of Analog Devices, Inc. Change to Product Title ................................................................... 1 Updated Outline Dimensions ....................................................... 11 Rev. A Page 2 of 11