Texas Instruments manual ±3. TPA0202 EVM Schematic Diagram, 1 TPA0202 Audio Amplifier IC

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The TPA0202 Audio Power Amplifier Evaluation Module

Figure 3±3. TPA0202 EVM Schematic Diagram

 

 

S8

 

 

 

 

 

 

 

 

 

 

 

1

GND/HS

GND/HS

24

 

 

 

 

 

 

 

 

 

 

 

 

 

LOUT+

 

 

2

TPA0202

23

 

 

 

 

 

C3

 

 

C8

 

 

 

 

 

NC

NC

 

 

 

 

 

5 pF

 

 

 

 

5 pF

 

 

 

 

 

 

 

 

 

 

 

C1

 

R2

3

LOUT+

ROUT+

22

R7

 

C6

R1

 

 

R8

1 μF

50 kΩ

 

 

 

 

50 kΩ

1

μF

20 kΩ

4

LLINE IN

RLINE IN

21

20 kΩ

LIN

 

R4

 

 

R9

 

 

 

 

 

5

 

 

20

 

 

 

LHP

 

20 kΩ

LHP IN

RHP IN

20 kΩ

 

 

 

 

R3

 

 

R10

 

 

 

C2

6

 

 

19

C7

 

20 kΩ

 

 

20 kΩ

1 μF

LBYPASS

RBYPASS

1

μF

C4

 

 

C9

 

 

 

2.2 μF

7

 

 

18

2.2 μF

S5

 

 

LVDD

 

 

LVDD

RVDD

 

 

 

 

C5

 

 

LVDD

 

 

 

C12

 

 

 

 

 

 

 

10 μF

2.2 μF

8

SHUTDOWN

NC

17

C10

C11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.2 μF

10 μF

 

 

 

 

 

 

 

 

 

 

 

 

 

R5

9

MUTE OUT

HP/LINE

16

 

S3

 

 

 

100 kΩ

 

 

 

 

 

 

 

 

 

 

LVDD

 

 

 

 

 

S1

10

 

 

15

 

 

 

LOUT±

 

 

LOUT±

ROUT±

 

 

 

 

 

 

 

 

 

R11

 

 

 

 

11

 

 

14

 

 

MUTE IN

 

LVDD

MUTE IN

SE/BTL

S6

100 kΩ

 

 

 

 

 

 

 

 

 

S2

 

12

 

 

13

 

 

 

 

 

 

 

GND/HS

GND/HS

 

S4

 

 

 

 

 

 

 

 

 

 

R6

 

 

 

 

 

LVDD

 

 

 

100 kΩ

 

 

 

D1

 

 

 

 

 

 

 

 

 

 

 

 

R12

 

 

 

LVDD

 

 

 

 

 

 

 

 

 

R13

 

 

 

100 kΩ

 

 

 

S7

 

 

 

 

 

 

 

 

 

 

510 Ω

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ROUT+

RIN

RHP

RVDD

HP/LINE

ROUT±

SE/BTL

3.2.1TPA0202 Audio Amplifier IC

The TPA0202 audio amplifier IC is a CMOS device intended primarily for bridge-tied load (BTL) operation in battery-powered applications. It is supplied in a very small 24-pin TSSOP thermal surface-mount package and has been designed to operate from low supply voltages (between approximately 3 V and

5.5V) and deliver full power at distortion levels of less than 0.1% THD+N from a 5-V supply (Figure 3±4). Typical applications include portable computers and multimedia systems.

3-4

Details

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Contents Users Guide Important Notice Preface Related Documentation From Texas InstrumentsIf You Need Assistance Contents Figures TablesIntroduction Feature Highlights Description ±1. The TI TPA0202 Audio Amplifier Evaluation ModuleTPA0202 EVM Specifications Quick Start EVM JP6 JP7 JP8Precautions Audio InputQuick Start List for Platform Platform preparations±4. Typical TPA0202 EVM Jumper Settings Quick Start List for Stand-Alone ±3. Quick Start Module MapControl Inputs Details ±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform TPA0202 Audio Power Amplifier Evaluation Module ±2. TPA0202 EVM±3. TPA0202 EVM Schematic Diagram 1 TPA0202 Audio Amplifier ICDepop Circuitry BTL OperationSIngle-Ended Operation Inputs and GainEVM Removal Installing and Removing EVM BoardsEVM Insertion 2 TPA0202 Module Jumper Settings and Switches ±5. TPA0202 EVM Jumpers and Switches2.2 S2 Ð Mute Switch 2.4 S4 Ð Output Mode Jumper2.1 S1 Ð Shutdown Jumper 2.3 S3 Ð Input Select Jumper2.7 S7 Ð SE Output Mode Switch 2.8 S8 Ð Junction Temperature Measurement Jumper2.5 S5 Ð VDD Bridge Jumper 2.6 S6 Ð Autosense JumperHeadphone Output Jack Signal RoutingSignal Conditioning Headphone Jack Control Signals Mute/ModeMute/Mode Select JP6 Mute/Mode Polarity Select JP8Power Requirements Outputs Inputs and OutputsInputs Using The TPA0202 EVM Stand-Alone 1 TPA0202 EVM Connected for BTL Output2 TPA0202 EVM Connected for Single-Ended Output ±10. TPA0202 EVM Connected for Stereo Single-Ended OutputTPA0202 Audio Power Amplifier Evaluation Module Parts List ±1. TPA0202 EVM Parts List

TPA0202 specifications

The Texas Instruments TPA0202 is a high-performance Class-D audio amplifier designed for a variety of portable audio applications. Renowned for its efficiency and sound quality, the TPA0202 is an ideal choice for battery-operated devices such as mobile phones, tablet computers, and other handheld devices. With the continuous push for better audio experiences in compact formats, the TPA0202 stands out with its impressive specifications and features.

One of the key characteristics of the TPA0202 is its power efficiency. Operating at a high efficiency rate of up to 90%, this Class-D amplifier minimizes heat generation, allowing it to deliver more power to the audio output while extending battery life. This efficiency is especially crucial for portable devices, where battery performance is a key consideration.

The TPA0202 supports an output power of 2 watts per channel into 4 ohms, making it capable of driving small speakers or headphones with excellent sound quality. The device features a built-in differential input stage that enhances noise immunity, thereby ensuring cleaner audio reproduction. It also supports a wide supply voltage range from 3V to 5.5V, contributing to its versatility in different applications.

In terms of audio quality, the TPA0202 boasts low total harmonic distortion (THD) and exceptional linearity, resulting in rich, clear audio output. Additionally, it comes equipped with selectable gain settings, allowing designers to tailor the amplifier to various output requirements and system designs.

The amplifier also integrates various protection features, including thermal shutdown, short-circuit protection, and undervoltage detection, ensuring robust operation under different conditions. The TPA0202 is also simple to implement in designs, with a minimal external component requirement, further enhancing its appeal to engineers seeking quick and efficient solutions for audio amplification needs.

Moreover, the compact package size of the TPA0202 allows for easy integration into space-constrained designs. With its combination of high efficiency, excellent audio quality, and protective features, the Texas Instruments TPA0202 continues to be a compelling choice for developers looking to enhance audio performance in portable and battery-operated devices. Whether for consumer electronics or in more specialized applications, the TPA0202 delivers reliable and impressive sound amplification, making it a go-to component for modern audio solutions.