- Texas Instrument TPA3100D2 Audio Power Amplifier User's Guide

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User's Guide

SLOU179 – December 2005

TPA3100D2 Audio Power Amplifier Evaluation Module

With LC Filter

Contents

1 Introduction .......................................................................................... 2

2 Operation ............................................................................................ 3

3 TPA3100D2 EVM Schematic ..................................................................... 5

4 TPA3100D2 EVM PCB Layers ................................................................... 6

5 TPA3100D2 EVM Parts List ....................................................................... 8

List of Figures

1 TI TPA3100D2 Audio Power Amplifier EVM – Top View ...................................... 2

2 TI TPA3100D2 Audio Power Amplifier EVM – Bottom View .................................. 2

3 TPA3100D2 EVM Schematic ..................................................................... 5

4 TPA3100D2 EVM – Top Layer ................................................................... 6

5 TPA3100D2 EVM – Bottom Layer................................................................ 7

List of Tables

1 Gain Settings ........................................................................................ 4

2 TPA3100D2 EVM Parts List ....................................................................... 8

SLOU179 – December 2005 TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter 1

Summary of content (11 pages)

PAGE 1
User's Guide SLOU179 – December 2005 TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter 1 2 3 4 5 Contents Introduction .......................................................................................... Operation ............................................................................................ TPA3100D2 EVM Schematic ..................................................................... TPA3100D2 EVM PCB Layers ..............................................................
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www.ti.com Introduction 1 Introduction 1.1 Description The TPA3100D2 evaluation module consists of a single 20-W, class-D, stereo audio power amplifier complete with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input. Figure 1. TI TPA3100D2 Audio Power Amplifier EVM – Top View Figure 2.
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www.ti.com Operation 1.2 TPA3100D2 EVM Specifications VCC Supply voltage range ICC Supply current 10 V to 26 V PO Continuous output power per channel, 8 Ω, VCC = 18 V, THD + N = 3.5% 20 W RL Minimum load impedance 3.2 Ω 4 A max 2 Operation 2.1 Quick Start List for Stand-Alone Operation Follow these steps to use the TPA3100D2 EVM stand-alone or when connecting it into existing circuits or equipment.
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www.ti.com Operation Table 1. Gain Settings GAIN1 (J13) (1) (1) GAIN0 (J12) (1) Amplifier Gain (dB) ON ON 20 ON OFF 26 OFF ON 32 OFF OFF 36 OFF = Jumper removed; ON = Jumper installed 2.1.2.3 Control Outputs 1. FAULT: This pin is a TTL compatible output for reporting a short-circuit fault on the output.
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www.ti.com TPA3100D2 EVM Schematic 3 TPA3100D2 EVM Schematic VREG R1 100k 0.47mF R2 100k S1 S2 C23 TP1 FAULT VCC 0.22mF 0.22mF C17 1mF L3 33mH C9 C8 0.1 0.1 mF mF L4 33mH J11 C20 10mF J5 ROUT- J6 ROUT+ VCC C4 C3 C12 NC BSRN ROUTN ROUTP ROUTN BSRP ROUTP C18 PVCCR LINP PGNDR LINN VCLAMPR TPA3100D2 220mF C16 C21 GAIN0 PGNDL GAIN1 PGNDL MSTR/SLV PVCCL J8 GND 1mF VCLAMPL NC J10 1mF PGNDR 1.0mF 1.0mF J7 VCC NC PVCCR AGND C13 C14 J12 MUTE RINP 1.
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www.ti.com TPA3100D2 EVM PCB Layers 4 TPA3100D2 EVM PCB Layers Figure 4.
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www.ti.com TPA3100D2 EVM PCB Layers Figure 5.
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www.ti.com TPA3100D2 EVM Parts List 5 TPA3100D2 EVM Parts List Table 2. TPA3100D2 EVM Parts List Ref. Size Qty C1 – C4 Capacitor, ceramic, 0.22-µF, ±10%, X7R, 25-V 0603 4 TDK C1608X7R1C224KT Digi-key/445-1318-2 C5 Capacitor, ceramic, 0.01-µF, ±10%, X7R, 50-V 0603 1 TDK C1608X7R1H103KT Digi-key/445-1311-2 C6 – C9 Capacitor, ceramic, 0.1-µF, ±10%, X7R, 50-V 0603 4 TDK C1608X7R1H104KT Digi-key/445-1314-2 C10 – C14 Capacitor, ceramic, 1.
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www.ti.com TPA3100D2 EVM Parts List FCC Warnings 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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www.ti.com TPA3100D2 EVM Parts List EVM WARNINGS AND RESTRICTIONS (continued) During normal operation, some circuit components may have case temperatures greater than 85°C. The EVM is designed to operate properly with certain components above 85°C as long as the input and output ranges are maintained. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.