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Copyright © 2002
Rev 0.3, 3/4/2002

LX1792 Eval CLASS-D AUDIO
AMPLIFIER
EVALUATION BOARD
USER GUIDE

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

P o w e r Ma n a g e m en t

Obsolete

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Summary of Contents for LX1792

Page 1: ...Copyright 2002 Rev 0 3 3 4 2002 LX1792 Eval CLASS D AUDIO AMPLIFIER EVALUATION BOARD USER GUIDE INTEGRATED PRODUCTS Power Management O b s o l e t e...

Page 2: ...ment 11861 Western Avenue Garden Grove CA 92841 714 898 8121 Fax 714 893 2570 TABLE OF CONTENTS LX1792 Evaluation Board Features and Circuit Description 2 Input Select Gain Set Impedance Select Output...

Page 3: ...output of the bridge driving a speaker or an equivalent load Because the FETs have an extremely low on resistance and an extremely high off resistance the majority 95 typical of the power is delivere...

Page 4: ...transformer and then to a first order RC low pass filter with a cutoff frequency of 20kHz This filter removes the 200kHz switching frequency from the signal BREADBOARD The LX1792 gives the user the o...

Page 5: ...elect 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 transforme...

Page 6: ...Vin Gain Setting 50mVrms 20dB 25mVrms 26dB 13mVrms 32dB 6mVrms 38dB 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 a...

Page 7: ...SCHEMATIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 C5 C1 C2 J3 J4 Breadboard R3 C6 1 2 3 4 5 6 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 Banan...

Page 8: ...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 Transformer MOUSER 42TL016 T1 1 9 14 P...

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