Page 3 - Preface; Related Documentation From Texas Instruments; TI is a trademark of Texas Instruments Incorporated.
iii Chapter Title—Attribute Reference Preface Related Documentation From Texas Instruments J TI Plug-N-Play Audio Amplifier Evaluation Platform (literaturenumber SLOU011) provides detailed information on the evaluationplatform and its use with TI audio evaluation modules. J TPA311 350-mW Low-Voltage...
Page 5 - Contents; Introduction
Running Title—Attribute Reference v Chapter Title—Attribute Reference Contents 1 Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Feature Highlights 1-2 . . . . . . . . . . . . . . . . . . ....
Page 6 - Figures
Running Title—Attribute Reference vi Figures 1–1 The TI TPA311 MSOP Audio Amplifier Evaluation Module 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1 Quick Start Platform Map 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2...
Page 7 - This chapter provides an overview of the Texas Instruments (TI; Topic; Chapter 1
1-1 Introduction Introduction This chapter provides an overview of the Texas Instruments (TI ) TPA311 MSOP audio amplifier evaluation module (SLOP123). It includes a list of EVMfeatures, a brief description of the module illustrated with a pictorial diagram,and a list of EVM specifications. Topic ...
Page 8 - Feature Highlights
Feature Highlights 1-2 Introduction 1.1 Feature Highlights The TI TPA311 MSOP audio amplifier evaluation module and the TIplug-n-play audio amplifier evaluation platform include the following features: - TPA311 Low-Voltage Audio Power Amplifier Evaluation Module J Single channel, bridge-tied load (B...
Page 9 - Description; Figure 1–1. The TI TPA311 Audio Amplifier Evaluation Module; TPA311 EVM Specifications; Supply voltage range, V; Audio input voltage, V
Description 1-3 Introduction 1.2 Description The TPA311 MSOP audio power amplifier evaluation module is a complete,low-power single-channel audio power amplifier. It consists of the TI TPA311350-mW low-voltage audio power amplifier IC in a very small MSOP package,along with a small number of other p...
Page 11 - Quick Start; MSOP EVM; Chapter 2
2-1 Quick Start Quick Start The steps in this chapter can be followed to quickly prepare the TPA311 MSOPaudio amplifier EVM for use. Using the TPA311 MSOP EVM with the TIplug-n-play audio amplifier evaluation platform is a quick and easy way toconnect power, signal and control inputs, and signal out...
Page 12 - Power Supply Input Polarity and Maximum Voltage; power; Quick Start Platform Map
Precautions 2-2 Quick Start 2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external powerconnected to V CC power input connector J1, J2, and/or V DD power input connector J6 are correct. Overvoltage or reverse-polaritypower applied ...
Page 13 - Quick Start List for Platform; Platform preparations; Power supply; Inputs and outputs
Quick Start List for Platform 2-3 Quick Start 2.2 Quick Start List for Platform Follow these steps when using the TPA311 MSOP EVM with the TI plug-n-playaudio amplifier evaluation platform (see the platform user’s guide, SLOU011,for additional details). Numbered callouts for selected steps are shown...
Page 14 - Quick Start List for Stand-Alone
Quick Start List for Stand-Alone 2-4 Quick Start 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA311 MSOP EVM stand-alone or whenconnecting it into existing circuits or equipment. Connections to the TPA311MSOP module header pins can be made via individual sockets,wire-wrapping,...
Page 15 - Details; Chapter 3
3-1 Details Details This chapter provides details on the TPA311 IC, the evaluation module, andthe steps in the Quick-Start List, additional application information, and a partslist for the TPA311 MSOP evaluation module. Topic Page 3.1 Precautions 3–2 . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 16 - Figure 3–1. The TI Plug-N-Play Audio Amplifier Evaluation Platform
Precautions 3-2 Details 3.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external powerconnected to V CC power input connector J1, J2, and/or V DD power input connector J6 are correct. Overvoltage or reverse-polaritypower applied to t...
Page 17 - The TPA311 MSOP Audio Power Amplifier Evaluation Module; Figure 3–3. TPA311 MSOP EVM Schematic Diagram
The TPA311 MSOP Audio Power Amplifier Evaluation Module 3-3 Details 3.2 The TPA311 MSOP Audio Power Amplifier Evaluation Module The TPA311 MSOP audio power amplifier evaluation module is powered bya TPA311 350-mW low-power audio amplifier IC, includes a shutdown controlsignal input with onboard swit...
Page 18 - TPA311 Audio Amplifier IC; –, and neither line is connected to ground. BTL operation; BTL Operation
The TPA311 MSOP Audio Power Amplifier Evaluation Module 3-4 Details 3.2.1 TPA311 Audio Amplifier IC The TPA311 audio amplifier IC is a CMOS device intended primarily for bridge-tied load (BTL) operation in battery-powered applications. It is supplied in avery small surface-mount package and has been...
Page 19 - SIngle-Ended Operation; Gain; Shutdown
The TPA311 MSOP Audio Power Amplifier Evaluation Module 3-5 Details 3.2.3 SIngle-Ended Operation For single-ended operation, the module SE/BTL control input pin must be heldhigh. The speaker (or headphone) load is connected to the module OUT+output pin through a coupling capacitor, and to platform/s...
Page 20 - Using The TPA311 MSOP EVM With the Plug-N-Play Evaluation Platform; Installing and Removing EVM Boards; EVM Insertion
Using The TPA311 MSOP EVM With the Plug-N-Play Evaluation Platform 3-6 Details 3.3 Using The TPA311 MSOP EVM With the Plug-N-Play Evaluation Platform The TPA311 MSOP audio amplifier evaluation module was designed to beused with the TI plug-n-play audio amplifier evaluation platform. It simply plugsi...
Page 21 - Signal Routing; Figure 3–5. Platform Signal Routing and Outputs; Switch S2 selects signal conditioning or bypasses it; Headphone Output Jack
Using The TPA311 MSOP EVM With the Plug-N-Play Evaluation Platform 3-7 Details 3.3.2 Signal Routing Signal flow on the platform is controlled by two signal routing switches, asshown in Figure 3 – 5. Figure 3–5. Platform Signal Routing and Outputs U1 Signal Conditioning On Off U5 Stereo Headphone Amp...
Page 22 - , the TPA311 amplifier IC on the module shuts; , the module operates in the; through a; Figure 3–6. Mute/Mode and Polarity Control
Using The TPA311 MSOP EVM With the Plug-N-Play Evaluation Platform 3-8 Details 3.3.3 Mute/Mode The TPA311 MSOP EVM is equipped with a mute (shutdown) control input pin.When this input is tied to V DD , the TPA311 amplifier IC on the module shuts down and assumes an ultralow-power mode. When the EVM ...
Page 24 - Power Requirements
Power Requirements 3-10 Details 3.3.4 Power Requirements The TPA311 MSOP audio power amplifier evaluation module can operate fromany voltage between approximately 2.5 V and 5.5 V; however, the TPA311amplifier IC on the module is characterized for operation at 3.3 V and 5 V. Forbest performance (high...
Page 25 - Inputs and Outputs; Inputs; Figure 3–7. Typical Headphone Plug
Inputs and Outputs 3-11 Details 3.3.5 Inputs and Outputs The TI plug-n-play audio amplifier evaluation platform is equipped with severalstandard conectors for audio inputs and outputs. 3.3.5.1 Inputs In most cases, audio signals enter the platform through either a pair of RCAphono jacks (J3 and J5) ...
Page 26 - Using The TPA311 MSOP EVM Stand-Alone; TPA311 MSOP EVM Connected for BTL Output; Figure 3–8. TPA311 MSOP EVM Connected for Stereo BTL Output
Using The TPA311 MSOP EVM Stand-Alone 3-12 Details 3.4 Using The TPA311 MSOP EVM Stand-Alone Using the TPA311 MSOP audio power amplifier evaluation modulestand-alone is much the same as using it with the platform. The same 2.5-Vto 5.5-V power supply range and the isolated OUT+ and OUT– lines for BTL...
Page 27 - TPA311 MSOP EVM Connected for Single-Ended Output
Using The TPA311 MSOP EVM Stand-Alone 3-13 Details 3.4.2 TPA311 MSOP EVM Connected for Single-Ended Output Figure 3–9. TPA311 MSOP EVM Connected for Stereo Single-Ended Output 33 µ F – 1000 µ F + + 33 µ F – 1000 µ F 5 VDC Audio Input (Right) 5 VDC Audio Input (Left) External Mute Control (active hig...
Page 28 - TPA311 MSOP Audio Power Amplifier Evaluation Module Parts List; Table 3–1. TPA311 MSOP EVM Parts List
TPA311 MSOP Audio Power Amplifier Evaluation Module Parts List 3-14 Details 3.5 TPA311 MSOP Audio Power Amplifier Evaluation Module Parts List Table 3–1. TPA311 MSOP EVM Parts List Ref. Description Size EVM Qty. Manufacturer/ Part Number Vendor Number C5 Capacitor, 10 µ F, 6.3 V A 1 PanasonicECS-TOJ...
