Texas Instruments TPA6120A2EVM User Manual Download Page 6 | Manualshive

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Summary of Contents for TPA6120A2EVM

Page 1: ...May 2004 HPA Audio Power User s Guide SLOU169...

Page 2: ...ute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual pro...

Page 3: ...handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s r...

Page 4: ...nty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 125 C The EVM is designed to operate p...

Page 5: ...xas Instruments SLOS431 TPA6120A2 data sheet If you need Assistance Contact your local TI sales representative FCC Warning This equipment is intended for use in a laboratory test environment only It g...

Page 6: ...iv...

Page 7: ...Customizing the EVM 3 1 3 1 Inverting Configuration 3 2 3 2 Differential Configuration 3 2 3 3 Special Note on Gain and Input Configuration 3 2 3 3 Single Power Supply Configuration 3 2 4 EVM Circuit...

Page 8: ...ith Numbered Callouts 2 3 4 1 Top Layer of the TPA6120A2 EVM 4 2 4 2 Bottom Layer of the TPA6120A2 EVM 4 3 4 3 TPA6120A2 EVM Schematic 4 5 1 1 TPA6120A2 EVM Performance Specifications 1 2 4 1 TPA6120A...

Page 9: ...0A2 is a high fidelity audio amplifier The amplifier can operate from a split power supply and is designed for low noise high dynamic range performance Topic Page 1 1 Description 1 2 1 2 Performance S...

Page 10: ...Table 1 1 TPA6120A2 EVM Specifications TPA6120A2 Supply voltage range VCC 5 V to 15 Power supply current rating required 1 A Continuous output power Po 32 stereo VCC 12 V 2 W Audio input voltage VI VC...

Page 11: ...configuration No soldering is necessary Connection to the TPA6120A2 EVM can be made with banana plugs RCA jacks and a 1 4 inch headphone jack See Figure 2 1 for an illustration of the top layer Topic...

Page 12: ...jack labeled LIN J5 and the right signal source to the RCA jack labeled RIN J6 7 Insert headphones into 1 4 inch headphone jack J10 8 If desired RCA Jacks J1 and J2 may be used instead of the headphon...

Page 13: ...Power Up 2 3 Getting Started Figure 2 1 Top Layer With Numbered Callouts From paragraphs 2 1 through 2 3 8 7 8 2 9 6 3 9 6 4...

Page 14: ...Power Up 2 4 This page has been left blank intentionally...

Page 15: ...le and can be converted to operate in inverting and differential configurations The TPA6120A2 EVM can also be operated in a single power supply configuration Topic Page 3 1 Inverting Configuration 3 2...

Page 16: ...Gain and Input Configurations The TPA6120A2 high fidelity audio power amplifier has two separate channels left and right It is not necessary to operate each channel in the same configuration For test...

Page 17: ...available but intentionally left unpopulated to keep signal interference as low as possible This chapter includes the EVM layout the TPA6120A2 EVM component selection schematic and bill of materials...

Page 18: ...EVM requires that RIN and LIN be at ground Rather than have the signal go through the long signal trace to get to the input jacks 0 resistors R11 and R12 are used to provide a connection to ground mu...

Page 19: ...hows the bottom layer of the TPA6120A2 EVM Note that the copper has been removed from around the capacitive sensitive nodes It is important to remember that the thermal pad on the underside of the IC...

Page 20: ...t floats typically up to the rail A 12 V offset with a 32 load can draw up to 375 mA of current depending on the size of the output series resistor When a source is then connected or turned on and thu...

Page 21: ...imal since for most sources a 4 02 k load is seen as high impedance Going from 4 02 k to 10 k results in a minimal performance increase but pushes the output offset voltage past the 100 mV threshold 4...

Page 22: ...20P102B R5 R6 2 10 0 1 330 mW TCR 25 PPM C 1206 Vishay P1206E10R0BB R7 R8 2 49 9 0 1 1 10W TCR 25 PPM C 0805 Thin Film Technology RR1220P49R9B Thin Film Technology RR1220P49R9B R11 R12 2 10 m 2 0 0805...

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