Texas Instruments APA100 Manual do Utilizador descarregar pdf (Página 7)

1-1

EVM Overview

This reference design demonstrates how to make the TPA2001D1 and the

TAS5111 into a 100-W class-D amplifier. The user’s guide discusses how the

TPA2001D1 is used as an analog input class-D modulator. The analog

modulator is input to the TAS5111, which is an H-bridge that effectively extends

the supply range from the TPA2001D1’s 3-V rails to 29.5 V with the TAS5111.

The 18-V to 29.5-V power supply is applied across the power supply banana

plugs J3 and J4. Apply 18 V to 29.5 V to J3 and 0 V (ground) to J4. A simple

zener diode and NPN transistor circuit is used to create the 3-V supply for the

TPA2001D1 and TLV2464A; therefore, the user only needs to apply the

single-supply voltage.

The analog single-ended input is received through the phono jack, J5. The

user should connect the load across the differential output banana jacks, J1

and J2.

Topic Page

1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Power Requirements 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 EVM Basic Function/Block Diagram 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

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Texas Instruments APA100 Manual do Utilizador Página 7