Texas Instruments SLOU082 manual TPA032D03 Class-D EVM Schematic

Page 24

TPA032D03 Class-D EVM Schematic

3.9 TPA032D03 Class-D EVM Schematic

The TPA032D03 class-D EVM schematic is shown in Figure 3±4.

Figure 3±4. TPA032D03 Class-D EVM Schematic Diagram

VDD

R3

 

 

R5

 

R6

 

 

 

 

Ring

 

 

 

 

J1

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

100k

 

 

100k

 

100k

 

 

 

 

 

 

Mode

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

SD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R8

 

 

 

A

 

 

Mute

 

 

 

 

S1

 

 

 

 

 

TIP

 

 

 

 

 

 

 

 

 

TPA032D03

 

1k

 

2

 

 

 

 

 

 

S2

SD

 

 

 

 

R9

 

 

 

 

 

 

 

1

 

COSC 48

 

 

1

 

 

 

 

 

 

Mute

 

 

SHUTDOWN

 

 

 

1k

 

 

 

R1

 

 

 

 

C5

 

 

 

 

 

 

 

 

 

 

 

2

MUTE

AGND 47

 

 

 

 

 

 

 

100k

 

 

 

 

 

 

 

 

 

 

 

Mode

 

 

 

 

 

3

MODE

AGND 46

1000pF

 

 

 

 

 

 

 

 

 

 

C3

1F

 

 

 

 

 

 

 

LIN±

 

 

 

 

4

INN

AGND

45

 

 

 

 

 

 

 

LIN+

 

 

 

 

C4

1F

5

INP

AGND

44

 

 

 

 

VDD

 

5 V

 

 

 

 

 

C6

1000pF

6

COMP

AGND 43

 

 

 

 

VCC

 

12 V

 

C10

 

C9

 

 

7

AGND

FAULT_0

42

TP3

 

C8

 

C11²

 

C7

1F

 

 

 

 

 

8

VDD

FAULT_1

41

TP2

 

1F

 

 

 

 

10 F

1 F

 

 

9

 

PVDD 40

 

 

 

 

 

 

 

VCC

 

 

 

 

 

 

PVDD

 

 

 

 

 

 

VCC

 

 

 

C22

L1

 

10

OUTP

NC

39

 

 

 

 

 

 

VDD

LOUT+

 

 

 

11

OUTP

NC

38

 

 

 

 

 

 

 

 

 

 

 

 

 

TP1

 

 

R13

 

 

 

 

C23

0.22F

15 H

 

12

PGND

PGND 37

 

 

 

 

 

 

 

 

 

 

 

500k

 

 

 

 

1F

 

C21

 

 

13

PGND

PGND 36

 

 

 

 

 

 

 

 

L2

 

 

 

 

R14

 

 

 

LOUT±

 

 

 

 

 

14

OUTN

NC

35

C12

 

 

 

 

 

 

 

 

15H

 

 

 

 

 

 

 

 

0.22 F

 

 

15

OUTN

NC

34

 

 

150k

C19 33F

 

 

 

 

 

 

 

 

 

 

 

TIP

 

 

 

 

 

 

16

PVDD

PVDD

33

1 F

 

 

 

RING

C20 33F

 

 

 

 

 

 

 

 

 

 

 

 

C18

R10

 

17

HPREG

HPVCC

32

R7

 

C18

 

 

 

 

R2 100k

5.6 pF

100k

 

18

HPLOUT

HPROUT

31

100k

5.6 pF

 

 

 

LHP

 

 

 

19

HPLIN

HPRIN

30

 

 

 

 

 

 

RHP

 

C2 0.1F

 

 

 

 

 

20

AGND

V2P5

29

C11

 

 

R4

C1

 

VCC

 

 

 

 

 

 

21

PVDD

PVDD 28

 

 

100k 0.1F

 

 

 

 

 

 

 

 

22

VCP

PGND

27

1F

 

 

 

 

 

 

 

 

 

 

 

 

 

23

HPDL

HPDR

26

 

 

 

 

 

 

 

 

 

 

C13

C15

 

24

CP1

CP2

25

 

 

 

 

 

 

 

 

 

 

1F

0.1F

 

 

C16

0.047F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

²Capacitor C11 is optional (not assembled) and a location for it on the EVM PCB has been provided to increase design flexibility and allow decoupling capacitance to be added.

3-10

Details

Image 24
Contents Users Guide Important Notice Preface Related Documentation From Texas InstrumentsPage Contents Figures TablesIntroduction Feature Highlights Description TPA032D03 Class-D EVM Specifications MaximumTypical Quick Start JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8Precautions Audio PowerQuick Start List for Platform Platform PreparationsQuick Start List for Stand-Alone Details ±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform Plug-N-Play Platform Power Requirements and Connections Plug-N-Play Platform Inputs and Outputs InputsOutputs Control and Indicator Circuits TPA032D03 Class-D EVM Test PointsModule Switches 1 S1 Ð Shutdown Switch2 S2 Ð Mute Switch 3 J1 Ð Headphone Jack Mode SwitchUsing The TPA032D03 Class-D EVM Stand-Alone Power ConnectionsControls and Indicators Input ConnectionsOutput Connections TPA032D03 Class-D EVM Bill of Materials ±4. TPA032D03 Class-D EVM Bill of MaterialsTPA032D03 Class-D EVM Schematic TPA032D03 class-D EVM schematic is shown in ±4±5. TPA032D03 Class-D EVM Top Assembly 10 TPA032D03 Class-D EVM PCB Layers±7. TPA032D03 Class-D EVM Top Layer ±9. TPA032D03 Class-D EVM Third Layer Details

SLOU082 specifications

Texas Instruments SLOU082 is a technical document primarily focused on the TPS7A47 device, which is an enhanced, low-noise linear voltage regulator designed for world-class performance in sensitive analog applications. This document explains the features, technologies, and characteristics that set the TPS7A47 apart in the industry.

One of the main features of the TPS7A47 is its ultra-low output noise, boasting a remarkable specification of just 1.2 μVRMS across a bandwidth of 10 Hz to 100 kHz. This characteristic makes it an ideal choice for high-precision, low-noise applications such as RF and audio signal processing, where minimizing noise is crucial for system performance. Additionally, the device offers a wide output voltage range from 1.4 V to 20 V, providing flexibility in various applications.

The TPS7A47 operates with a maximum output current of 1 A, enabling it to support multiple loads efficiently. Its dropout voltage is impressively low, particularly at light load conditions, ensuring high-efficiency performance in battery-powered applications. This aspect significantly extends battery life, making it suitable for portable devices.

Another highlight is the PowerPAD package offered for the TPS7A47, which enhances thermal performance and simplifies PCB design. The integration of thermal protection ensures the regulator operates safely under various conditions, preventing potential damage due to overheating.

The TPS7A47 also includes features such as reverse current protection, which prevents current from flowing back into the input when the output voltage exceeds the input voltage. This feature enhances reliability and extends the longevity of the device in various circuit configurations.

In terms of control, the TPS7A47 utilizes a low-dropout architecture, ensuring steady voltage regulation with minimal input-to-output voltage differential. It also supports a wide range of capacitor types, which allows for flexibility in component selection in layout design.

Overall, the Texas Instruments SLOU082 document on the TPS7A47 provides detailed insights into one of the most effective voltage regulation solutions available today. With exceptional noise performance, a versatile voltage range, robust thermal management, and reliability characteristics, the TPS7A47 is an exemplary choice for engineers and designers aiming to achieve high-performance analog systems.