background image

2-1

Getting Started

 

  

Follow these steps to use the TPA6120A2 EVM in its original 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

2.1

Power Supply

2-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2.2

Inputs and Outputs

2-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2.3

Power Up

2-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Chapter 2

Содержание TPA6120A2EVM

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 6: ...iv...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы: