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Summary of Contents for Texas Instruments TPA0252
- Page 1 TPA0252 Audio Power Amplifier Evaluation Module User’s Guide 2001 Mixed-Signal Products SLOU102...
- 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 SLOU011) provides detailed information on the evaluation platform and its use with TI audio evaluation modules. TPA0252 Stereo 2-W Audio Power Amplifier With Digital Volume Control (literature number SLOS288) This is the data sheet for the TPA0252 audio amplifier integrated circuit.
- Page 4 Running Title—Attribute Reference FCC Warning This equipment is intended for use in a laboratory test environment only. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference.
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Page 5: Table Of Contents
Tables 2–1 Platform Jumper and Switch Settings for the TPA0252 ......2–2 Typical TPA0252 EVM Jumper Settings . -
Page 7: Introduction
Chapter 1 Introduction This chapter provides an overview of the Texas Instruments TPA0252 audio amplifier evaluation module (SLOP333). 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: 1.1 Feature Highlights
Feature Highlights 1.1 Feature Highlights The TI TPA0252 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: TPA0252 stereo 2-W audio power amplifier evaluation module Internal depop circuitry to minimize transients in outputs... -
Page 9: 1.2 Description
1.2 Description The TPA0252 stereo 2-W audio amplifier evaluation platform is a complete, 2 W per channel stereo audio power amplifier. It consists of the TI TPA0252 stereo 2-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 (see Figure 1–1). - Page 10 Introduction...
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Page 11: 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 TPA0252 audio amplifier EVM, or to connect the TPA0252 audio amplifier EVM for stand-alone operation. -
Page 12: Precautions
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
1) Ensure that all external power sources are set to OFF and that the platform power switch S1 is set to OFF. 2) Install a TPA0252 module in platform socket U2, taking care to align the module pins correctly. 3) Use switch S2 to select or bypass the signal conditioning EVM (U1). -
Page 14: Module Preparation
INSTRUMENTS L HP SLOP333 LOUT+ TPA0252 EVM Table 2–2. Typical TPA0252 EVM Jumper Settings TPA0252 Note: ON = Shunt installed, OFF = Open 11) To use the PCBEEP input, set J4 to OFF and drive a 1-Vp–p, 1-kHz squarewave into the capacitor side of the jumper. If the PCBEEP input is not being used, set jumper J4 to ON. -
Page 15: Quick Start List For Stand-Alone
Quick Start List for Stand-Alone 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA0252 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA0252 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 16: Stand-Alone Module Preparation
INSTRUMENTS L HP SLOP333 LOUT+ TPA0252 EVM Table 2–3. Typical TPA0252 EVM Jumper Settings TPA0252 Note: ON = Shunt installed, OFF = Open 6) To use the PCBEEP input, set J4 to OFF and drive a 1-Vp–p, 1-kHz squarewave into the capacitor side of the jumper. If the PCBEEP input is not being used, set jumper J4 to ON. -
Page 17: Stand-Alone Connection Diagram
(100 kΩ). Figure 2–4 shows a TPA0252 EVM connected for stereo BTL operation. Figure 2–4. TPA0252 EVM Connected for Stereo BTL Output... -
Page 18: Reference
Reference 2.5 Reference This section includes the TPA0252 EVM schematic, the EVM parts list, and the module PCB layers. 2.5.1 EVM Schematic Figure 2–5 shows the TPA0252 EVM schematic. Figure 2–5. TPA0252 EVM Schematic ROUT+ HP/LINE ROUT– ROUT+ PCBEEP TPA0252 HP–SE... -
Page 19: Evm Parts List
Reference 2.5.2 EVM Parts List Table 2–4 is the TPA0252 EVM parts list. Table 2–4. TPA0252 EVM Parts List Manufacturer/ Ref. Description Size Digi-Key Number Qty. Part Number Capacitor, 0.47 µF, 15 V, C1, C2, C14, 0805 Panasonic Digi-Key C4–C11 +80%/–20%, Y5V... -
Page 20: Module Pcb Layers
Reference 2.5.3 Module PCB Layers The following illustrations depict the TPA0252 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from any TI Sales Office. Figure 2–6. TPA0252 EVM PCB Figure 2–7. TPA0252 EVM Silkscreen... -
Page 21: Tpa0252 Evm Bottom Layer
Reference Figure 2–8. TPA0252 EVM Bottom Layer Operation 2-11... - Page 22 2-12 Operation...
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