Texas Instruments TPA5050, Руководство пользователя, Страница: 6 / 15

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3 Operation
3.1 Quick Start List for Use With the TI Input USB Board
3.2 Power Supply
3.3 EVM Preparation
Operation
Figure 4. TPA5051 in I
2
S Mode – Unable to Communicate
Follow these steps to use the TPA5051EVM with the TI Input USB board. This requires a digital or analog
audio source, a 5-V power supply, and the included USB and ribbon cables.
1. Ensure that all external power sources are set to OFF
2. Connect an external regulated power supply set to 5 V to the 5V (J7) and GND (J6), taking
care to observe marked polarity.
1. Ensure that the shunts are fully installed on jumpers J1 and J2. This jumper setting sets the operating
mode of the PCM1606 to I
2
S.
2. Install the shunts across J3, J4, or J5, to set the I
2
C address of the TPA5051. J3, J4, and J5
correspond to ADD0, ADD1, and ADD2, respectively. Installing the shunt across a given jumper pulls
6 TPA5051EVM SLOU184 – July 2006
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