Microsemi LX1790EVAL CLASS-D User Manual Download Page 1 | Manualshive

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Copyright © 2002
Rev 0.2, 3/4/2002

LX1790EVAL CLASS-D AUDIO
AMPLIFIER
EVALUATION BOARD
USER GUIDE

I N T E G R A T E D P R O D U C T S

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Summary of Contents for LX1790EVAL CLASS-D

Page 1: ...Copyright 2002 Rev 0 2 3 4 2002 LX1790EVAL CLASS D AUDIO AMPLIFIER EVALUATION BOARD USER GUIDE I N T E G R A T E D P R O D U C T S...

Page 2: ...Management 11861 Western Avenue Garden Grove CA 92841 714 898 8121 Fax 714 893 2570 TABLE OF CONTENTS LX1790 Evaluation Board Features and Circuit Description 3 Input Select Gain Select Impedance Sele...

Page 3: ...for measurement and analysis Because the FETs have an extremely low on resistance and an extremely high off resistance the majority 95 typical of the power is delivered to the load making it a highly...

Page 4: ...t order RC low pass filter with a cutoff frequency of 20kHz This filter removes the 200kHz switching frequency from the signal BREADBOARD The LX1790 gives the user the option of connecting the amplifi...

Page 5: ...ut Select The Headphone setting will directly connect the differential output of the amplifier to the headphone jack The Single Ended setting will connect the differential amplifier output to a transf...

Page 6: ...ove CA 92841 714 898 8121 Fax 714 893 2570 12 Audio Source Verify that a low level audio source is being used and set it to the minimum level Start or play audio source and adjust volume to desired le...

Page 7: ...3 4 5 6 7 8 9 10 11 12 13 14 C5 C1 C2 J3 J4 Breadboard R1 C6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 1 2 2 1 2 3 4 8 7 6 5 1 2 3 4 5 6 1 2 1 2 1 2 3 BNC RCA RCA IN BNC IN Input Select Banana Ban...

Page 8: ...TH J3 1 4 BNC Connector MOUSER 523 31 5486 1010 J1 J5 J6 3 5 DPDT Slide Switch MOUSER 612 EG2201 SW1 1 6 DP3T Slide Switch MOUSER 612 EG2301 SW2 SW3 SW4 3 7 RCA Jack Red MOUSER 161 0096 J2 1 8 Transfo...

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