AN96084AN96084, Półprzewodniki - dane katologowe, 3.Półprzewodnik
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APPLICATION NOTE Application of the CGY2030M power amplifier AN96084 Philips Semiconductors Philips Semiconductors CGY2030M DECT power amplifier Application Note Abstract The CGY2030M is a monolithic GaAs power amplifier for transmission DECT applications. This report contains a description including the power amplifier ,the switching circuit and the operation modes. 2 Philips Semiconductors CGY2030M DECT power amplifier Application Note APPLICATION NOTE APPLICATION OF THE CGY2030M POWER AMPLIFIER AN96084 Authors: Jean-Pierre Manhout Technical Marketing, Telecom Product Group Caen, France Bruno Leroux RF designer Limeil Brevannes, France Keywords Telecom Demonstration Board CGY2030M DECT Power amplifier IC Transmitter Date: August 13th, 1996 3 Philips Semiconductors CGY2030M DECT power amplifier Application Note Summary This report is intended to provide support for designing power amplifier for DECT applications. It contains a description of the power amplifier as well as a brief overview of interstage and input /output matching . An application example of the CGY2030M is given by means of board description for testing ,recommendations for use ,measurement results ,and performances. Some explanations concerning the self biasing specificity of this circuit are also available in the document. 4 Philips Semiconductors CGY2030M DECT power amplifier Application Note CONTENTS 1. INTRODUCTION ...........................................................................................................................................7 2. PINNING .......................................................................................................................................................7 3. CIRCUIT DESCRIPTION...............................................................................................................................8 3.1 Power amplifier .......................................................................................................................................8 3.2 Interstage matchings...............................................................................................................................8 3.3 Drain switching circuit .............................................................................................................................9 4. MODE OF OPERATION..............................................................................................................................10 4.1 Mode 1:without negative bias ................................................................................................................11 4.2 Mode 2:with negative bias .....................................................................................................................11 5. GENERAL CHARACTERISTICS ................................................................................................................12 6. CIRCUIT DIAGRAM AND RECOMMENDATIONS FOR USE .....................................................................13 6.1 Circuit diagram......................................................................................................................................13 6.2 Recommendations for use ....................................................................................................................14 7. PRINTED CIRCUIT BOARD LAYOUT-LIST OF COMPONENTS ...............................................................15 7.1 Circuit layout. ........................................................................................................................................15 7.2 Part list DECT power amplifier. .............................................................................................................16 8. THERMAL CHARACTERISTICS/POWER DISSIPATION CONSIDERATIONS ..........................................17 8.1 Thermal Characteristics .......................................................................................................................17 8.2 Channel temperature calculation /Maximum duty cycle..........................................................................17 8.3 Power derating curve ............................................................................................................................17 9. ELECTRICAL CHARACTERISTICS ...........................................................................................................18 9.1 Output power and efficiency as a function of drain voltage ....................................................................18 9.2 Output power and efficiency as a function of frequency .........................................................................18 9.3 Harmonics ............................................................................................................................................19 9.4 Temperature dependency .....................................................................................................................19 5 [ Pobierz całość w formacie PDF ] |
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