1:2 Single-Ended, Low Cost Active RF Splitter Data Sheet ADA4303-2 FEATURES FUNCTIONAL BLOCK DIAGRAM 5V 5V Ideal for CATV applications Excellent frequency response 0.1F 0.1F 1.7 GHz, 3 dB bandwidth 1H 1 dB flatness to 1.2 GHz Low noise figure: 4.4 dB VCC IL Low distortion Composite second order (CSO): 62 dBc VO1 Composite triple beat (CTB): 72 dBc 0.01F VIN ADA4303-2 1 dB compression point of 8.5 dBm 0.01F 3 dB of gain per output channel VO2 24 dB isolation between output channels 0.01F 249 75 input and outputs 249 GND Small package size 12-lead, 3 mm 3 mm lead frame chip scale package APPLICATIONS Figure 1. Set-top boxes Home gateways CATV distribution systems Splitter modules Digital cable ready (DCR) TVs GENERAL DESCRIPTION 4 The ADA4303-2 is a 75 , two -output active splitter for use T = 40C A 3 in applications where a lossless signal split is required. Typical 2 applications include multituner digital set-top boxes, cable splitter T = +25C A 1 modules, multituner/digital cable ready (DCR) televisions, and 0 home gateways where traditional solutions require discrete T = +85C A 1 passive splitter modules with separate fixed gain amplifiers. 2 The ADA4303-2 is a low cost alternative that simplifies designs 3 and improves system performance by integrating a signal splitter 4 element and a gain block into a single IC. The ADA4303-2 is 5 available in a 12-lead chip scale package (LFCSP) and operates 6 in the extended industrial temperature range of 40C to +85C. 7 8 50 100 1000 4000 FREQUENCY (MHz) Figure 2. Gain (S21) vs. Frequency 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 20062016 Analog Devices, Inc. All rights reserved. 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 GAIN (dB) 06364-001 06364-010ADA4303-2 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions ..............................5 Applications ....................................................................................... 1 Typical Performance Characteristics ..............................................6 Functional Block Diagram .............................................................. 1 Applications Information .................................................................8 General Description ......................................................................... 1 Circuit Description .......................................................................8 Revision History ............................................................................... 2 Evaluation Board ...........................................................................8 Specifications ..................................................................................... 3 RF Layout Considerations ............................................................8 Absolute Maximum Ratings ............................................................ 4 Power Supply ..................................................................................8 Thermal Resistance ...................................................................... 4 Outline Dimensions ..........................................................................9 ESD Caution .................................................................................. 4 Ordering Guide .............................................................................9 REVISION HISTORY 5/2016Rev. 0 to Rev. A Changed LFCSP VQ to LFCSP ................................... Throughout Changes to Figure 4 and Table 4 ..................................................... 5 Changes to Figure 17 ........................................................................ 8 Updated Outline Dimensions ......................................................... 9 Changes to Ordering Guide ............................................................ 9 10/2006Revision 0: Initial Version Rev. A Page 2 of 12