28 Gbps, 5-Bit, Digital Time Delay with Programmable Output Voltage Data Sheet HMC856 FEATURES FUNCTIONAL BLOCK DIAGRAM Differential and single-ended operation Supports data rates up to 28 Gbps Fast rise/fall time: 20 ps/18 ps GND 1 24 GND Low power consumption: 610 mW typical HMC856 50 50 Programmable differential I+ 2 23 O+ Output voltage swing: 500 mV p-p to 1350 mV p-p DELAY I 3 22 O 50 Single supply: 3.3 V 50 GND 4 21 GND 5 mm 5 mm, 32-terminal ceramic leadless chip carrier (LCC) 2 GND 5 20 GND package: 25 mm 600 600 B0+ 6 19 B4+ APPLICATIONS B0 7 18 B4 SONET OC-192 600 600 600 NC 8 17 NC High speed serial logic Clock and data recovery Broadband test and measurement equipment PACKAGE BASE Frequency synthesis V Matched timing EE Figure 1. GENERAL DESCRIPTION The HMC856 is a wideband time delay device with a 5-bit outputs are source terminated to 50 and can also be ac or dc- digital control designed for timing compensation or clock skew coupled. Connect outputs directly to a 50 ground terminated management applications. The time delay provides nearly system or drive devices with CML logic input. The control lines, B4 to B0, are differential CML inputs terminated with 600 to 100 ps (maximum) of delay range with 3 ps resolution and supports 28 Gbps data. The monotonic delay is compensated the positive rail, which supports lower power control options. for stable operation over both power supply and temperature The HMC856 features an output level control pin, VR, that variation. allows loss compensation or signal level optimization. The HMC856 operates from a single 3.3 V supply and is available All differential inputs to the HMC856 are current mode logic in a 5 mm 5 mm LCC package. (CML) and terminated on chip with 50 to the positive supply ground, GND, and can be ac or dc-coupled. The differential CML Rev. D 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 2018 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. B1+ NIC B1 GND GND V EE B2+ VB VR B2 V GND EE GND B3+ NIC B3 14720-001 9 32 10 31 11 30 12 29 13 28 14 27 15 26 25 16HMC856 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions ..............................5 Applications ....................................................................................... 1 Interface Schematics .....................................................................6 Functional Block Diagram .............................................................. 1 Typical Performance Characteristics ..............................................7 General Description ......................................................................... 1 Theory of Operation ...................................................................... 10 Revision History ............................................................................... 2 Applications Information .............................................................. 11 Specifications ..................................................................................... 3 Evaluation Printed Circuit Board (PCB) ................................ 11 Electrical Specifications ............................................................... 3 Typical Application Circuit ....................................................... 12 Timing Diagram ........................................................................... 3 Outline Dimensions ....................................................................... 13 Absolute Maximum Ratings ............................................................ 4 Ordering Guide .......................................................................... 13 ESD Caution .................................................................................. 4 REVISION HISTORY 6/2018Rev. C to Rev. D Changes to Figure 1 .......................................................................... 1 Changes to Resolution Parameter, Table 1 and Figure 2 ............. 3 Changes to Figure 22 Caption and Figure 23 ............................... 9 Changes to Theory of Operation Section .................................... 10 Changes to Figure 25 ...................................................................... 12 Changes to Ordering Guide .......................................................... 13 This Hittite Microwave Products data sheet has been reformatted to meet the styles and standards of Analog Devices, Inc. 12/2016Rev. 01.0611 to Rev. C Updated Format .................................................................. Universal Changes to Features Section, General Description Section, and Figure 1 .............................................................................................. 1 Added Power Consumption Parameter, Table 1 .......................... 3 Changes to Figure 2 .......................................................................... 3 Changes to Table 2 ............................................................................ 4 Changes to Figure 3 and Table 3 ..................................................... 5 Changes to Typical Performance Characteristics Section ........... 7 Added Theory of Operation Section ........................................... 10 Changes to Table 4 and Figure 24 Caption ................................. 11 Changes to Figure 25 ...................................................................... 12 Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 13 Rev. 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