User’s Guide October 2000 Mixed-Signal Products SLOU092
IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete.
Preface Related Documentation From Texas Instruments TI Plug-N-Play Audio Amplifier Evaluation Platform (literature number SLOU011) provides detailed information on the evaluation platform and its use with TI audio evaluation modules. TPA0211 2-W MONO AUDIO POWER AMPLIFIER (literature number SLOS275) This is the data sheet for the TPA0211 audio amplifier integrated circuit. FCC Warning This equipment is intended for use in a laboratory test environment only.
iv
Running Title—Attribute Reference Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.
vi
Chapter 1 Introduction This chapter provides an overview of the Texas Instruments (TI) TPA0211 mono audio amplifier evaluation module (SLOP265). It includes a list of EVM features, a brief description of the module illustrated with a pictorial diagram, and a list of EVM specifications. Topic Page 1.1 Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Feature Highlights 1.1 Feature Highlights The TI TPA0211 mono audio amplifier evaluation module and the TI Plug-n-play audio amplifier evaluation platform include the following features: TPA0211 2-W Mono Audio Power Amplifier Evaluation Module Single channel, bridge-tied load (BTL) 3.3-V and 5-V operation 2-W output power into 4 Ω at 5 V, BTL Ultralow current consumption in shutdown mode Internal thermal protection Module gain is variable from –2 V/V to –10.4 V/V BTL (–1 V/V to –5.
Description 1.2 Description The TPA0211 mono audio power amplifier evaluation module is a complete single-channel audio power amplifier. It consists of the TI TPA0211 2-W mono audio power amplifier IC in a very small MSOP package, along with a small number of other parts mounted on a circuit board that is approximately one and a quarter inches square (Figure 1–1). Figure 1–1.
1-4 Introduction
Chapter 2 Operation The quick start lists in this chapter contain steps that can be followed to quickly prepare the TPA0211 mono audio amplifier EVM for use either with the TI plug-n-play audio amplifier evaluation platform or for stand-alone operation. Using the EVM with the TI evaluation platform is a quick and easy way to connect power, signal and control inputs, and signal outputs to the EVM, using standard connectors.
Precautions 2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to VCC power input connector J1, J2, and/or VDD power input connector J6 are correct. Overvoltage or reverse-polarity power applied to these terminals can open onboard soldered-in fuses and cause other damage to the platform, installed evaluation modules, and/or the power source.
Quick Start List for Platform 2.2 Quick Start List for Platform Follow these steps when using the TPA0211 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user’s guide, SLOU011, for additional details). Numbered callouts for selected steps are shown in Figure 2–1. Platform preparations 1) Ensure that all external power sources are set to OFF and that the platform power switch S1 is set to OFF.
Quick Start List for Stand-Alone 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA0211 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA0211 EVM module header pins can be made via individual sockets, wire-wrapping, or soldering to the pins, either on the top or the bottom of the module circuit board. Numbered callouts for selected steps are shown in Figure 2–2. Figure 2–2.
Stand-Alone Connection Diagrams 2.4 Stand-Alone Connection Diagrams The power supply range is 4.5 V to 5.5 V. 2.4.1 TPA0211 Mono EVMs Connected for Stereo BTL Output Figure 2–3 shows two TPA0211 EVMs connected for stereo BTL operation. Figure 2–3.
Stand-Alone Connection Diagrams 2.4.2 TPA0211 Mono EVMs Connected for Single-Ended Stereo Headphone Output Figure 2–4 shows two TPA0211 EVMs connected for single-ended stereo operation. Figure 2–4.
Reference 2.5 Reference This section includes the TPA0211 EVM schematic, the EVM parts list, and the module PCB layers. 2.5.1 EVM Schematic Figure 2–5 shows the TPA0211 EVM schematic. Figure 2–5. TPA0211 EVM Schematic Diagram R4 12 kΩ IN C3 0.47 µF R3 50 kΩ TPA0211 1 2 SHUTDOWN 3 S1 R1 100 kΩ VDD GND † C4 not assembled. C4† C1 1 µF 4 IN SD VDD Bypass C2 0.
Reference 2.5.2 EVM Parts List Table 2–3 is the TPA0211 EVM parts list. Table 2–3. TPA0211 EVM Parts List Ref. Description Size EVM Qty. Manufacturer/ Part Number Vendor Number C1 Capacitor, 1 µF @ 16 V, +80%/–20%, nonpolarized 1206 1 Murata GRM42-6Y5V105Z16BL C2, C3 Capacitor, 0.
Reference 2.5.3 Module PCB Layers The following illustrations depict the TPA0211 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from any TI sales office. Figure 2–6. TPA0211 EVM PCB VDD GND SHUTDOWN R3 S1 R1 R4 OUT– U1 R2 GND OUT+ SE/BTL C3 C2 C1 C4 IN GND TPA0211 EVM Board Texas Instruments 2000 SLOP265 Figure 2–7.
Reference Figure 2–8.
