Related Manuals for Texas Instruments TPA0253EVM
Summary of Contents for Texas Instruments TPA0253EVM
- Page 1 TPA0253 Audio Power Amplifier Evaluation Module User’s Guide December 2000 Mixed-Signal Products SLOU100...
- Page 2 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. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability.
- Page 3 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. TPA0253 1-W Mono Audio Power Amplifier With Headphone Drive (literature number SLOS280) This is the data sheet for the TPA0253 audio amplifier integrated circuit.
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Page 5: Table Of Contents
Running Title—Attribute Reference Contents Introduction ..............Feature Highlights . -
Page 7: Introduction
Chapter 1 Introduction This chapter provides an overview of the Texas Instruments (TI) TPA0253 audio amplifier evaluation module (SLOP270). It includes a list of EVM features, a brief description of the module illustrated with a pictorial diagram, and a list of EVM specifications. -
Page 8: Feature Highlights
Feature Highlights 1.1 Feature Highlights The TI TPA0253 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: TPA0253 mono 1-W audio power amplifier with stereo headphone drive evaluation module Single channel, bridge-tied load (BTL) or dual-channel single-ended operation Internal summing of left and right channels to generate mono signal 1 W output power into 8 Ω... -
Page 9: Description
Description 1.2 Description The TPA0253 audio power amplifier evaluation module is a complete 1-watt mono audio power amplifier with stereo headphone drive. It consists of the TI TPA0253 mono 1-W audio power amplifier IC along with a small number of other parts mounted on a circuit board that measures approximately 2 1/4 inches by 1 1/2 inches (Figure 1–1). - Page 10 Introduction...
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Page 11: Operation
Chapter 2 Operation Quick start lists in this chapter contain steps that can be followed to quickly prepare the TI plug-n-play audio amplifier evaluation platform for use with the TPA0253 audio amplifier EVM, or to connect the TPA0253 audio amplifier EVM for stand-alone operation. -
Page 12: Precautions
2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to V power input connector J1, J2, and/or V 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. -
Page 13: Quick Start List For Platform
2.2 Quick Start List for Platform Follow these steps when using the TPA0253 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user’s guide, SLOU011, for additional details). Table 2–1 shows typical platform jumper and switch settings and numbered callouts for selected steps appear in Figure 2–1. Table 2–1. -
Page 14: Quick Start List For Stand-Alone
2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA0253 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA0253 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. -
Page 15: Stand-Alone Connection Diagrams
2.4 Stand-Alone Connection Diagrams The power supply range is 2.5 V to 5.5 V and isolated RO/MO+ and LO/MO– lines for BTL operation are required. Note that the source of any shutdown signal applied to the EVM SHUTDOWN pin must be able to sink the current flowing through the pullup resistor on the module (100 kΩ) when the pin is held low. -
Page 16: Tpa0253 Evm Connected For Single-Ended Stereo Headphone Output
2.4.2 TPA0253 EVM Connected for Single-Ended Stereo Headphone Output Figure 2–4 shows a TPA0253 EVM connected for single-ended stereo headphone operation. Figure 2–4. TPA0253 EVM Connected for Single-Ended Stereo Headphone Output 5 VDC RO/MO+ TEXAS INSTRUMENTS LO/MO+ Audio 2000 5 VDC Input STEREO/MONO (Right) -
Page 17: Reference
2.5 Reference This section includes the TPA0253 EVM schematic, the EVM parts list, and the module PCB layers. 2.5.1 EVM Schematic Figure 2–5 shows the TPA0253 EVM schematic. Figure 2–5. TPA0253 EVM Schematic Diagram R2 50 kΩ 0.47 µF TPA0253 220 µF 12 kΩ... -
Page 18: Evm Parts List
2.5.2 EVM Parts List Table 2–2 is the TPA0253 EVM parts list. Table 2–2. TPA0253 EVM Parts List Manufacturer/ Ref. Description Size Vendor Number Qty. Part Number Capacitor, 1 µF @ 16 V, C1, C4 1206 Murata Arrow +80%/–20%, nonpolarized GRM42-6Y5V105Z16BL GRM426Y5V105Z Capacitor, 0.47 µF @ 16 V... -
Page 19: Module Pcb Layers
2.5.3 Module PCB Layers The following illustrations depict the TPA0253 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from any TI Sales Office. Figure 2–6. TPA0253 EVM PCB Figure 2–7. TPA0253 EVM Silkscreen... -
Page 20: Tpa0253 Evm Bottom Layer
Figure 2–8. TPA0253 EVM Bottom Layer 2-10...
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