Texas Instruments TPA0243 user manual

User manual for the device Texas Instruments TPA0243

Device: Texas Instruments TPA0243
Category: Stereo Amplifier
Manufacturer: Texas Instruments
Size: 0.17 MB
Added : 2/14/2014
Number of pages: 20
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Abstracts of contents
Summary of the content on the page No. 1



     
    
User’s Guide
December 2000 Mixed-Signal Products
SLOU099

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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 infri

Summary of the content on the page No. 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.  TPA0243 2-W Mono Audio Power Amplifier With Headphone Drive (literature number SLOS279) This is the data sheet for the TPA0243 audio amplifier integrated circuit. FCC Warning This equipment is intended for use in a laboratory test environment only. It generates

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iv

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Running Title—Attribute Reference Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.3 TPA0

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vi

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Chapter 1 Introduction This chapter provides an overview of the Texas Instruments (TI) TPA0243 audio amplifier evaluation module (SLOP269). 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Summary of the content on the page No. 8

Feature Highlights 1.1 Feature Highlights The TI TPA0243 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features:  TPA0243 mono 2-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  2 W output power into 4 W at 5 V, BTL  0.6 W output power into 4 W at 3 V, BTL

Summary of the content on the page No. 9

R5 R1 Description 1.2 Description The TPA0243 audio power amplifier evaluation module is a complete 2-watt mono audio power amplifier with stereo headphone drive. It consists of the TI TPA0243 mono 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 (Figure 1–1). Figure 1–1. The TI TPA0243 Audio Amplifier Evaluation Module VDD GND RO/MO+ TEXAS GND INSTRUMENTS LO/MO+ GND 2000 RIN STEREO/MONO C6 R

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1-4 Introduction

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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 TPA0243 audio amplifier EVM, or to connect the TPA0243 audio amplifier EVM for stand-alone operation. Using the TPA0243 audio amplifier evaluation module 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. The T

Summary of the content on the page No. 12

+ VR2 J6 VDD J10 In/Out F2 Right Left +– – + J8 Left Right J9 J7 Out Out Out Out Spk(U2-U4) C3 C2 JP8 U6 JP6 + + LED2 POWER VDD JP7 U2 HP(U5) SUPPLY S3 U2-U4 HP Source U5 U3 U4 JP5 U5 IDD B1 Off On On S1 TP1 S2 Conditioning GND Off Pwr U1 LED1 VCC JP3 Batt D1 JP2 AC/DC D2 (J2) JP1 VCC(J1) D3 TEXAS DC J3 J5 J4 INSTRUMENTS SOURCE Right Stereo Left 1997 In In In J1 D4 J2 VCC AC/DC In In + 2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of

Summary of the content on the page No. 13

2.2 Quick Start List for Platform Follow these steps when using the TPA0243 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. Platform Jumper and Switch Settings for the TPA0243 EVM JP6 JP7 JP8 S2 S3 P-N-P Platform Mode X Hi Note 2 X Notes: 1) X = Don’t care 2) Set S2 to ON when signal

Summary of the content on the page No. 14

R5 R1 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA0243 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA0243 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 appear in Figure 2–2. Figure 2–2. Module Map 2 VDD GND RO/MO+ TEXAS GND INSTRUMENTS LO/MO+ GND 5 2000 4 RIN STEREO/MONO C6

Summary of the content on the page No. 15

R5 R5 R1 R1 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 kW ) when the pin is held low. 2.4.1 TPA0243 EVMs Connected for Stereo BTL Output Figure 2–3 shows two TPA0243 EVMs connected for stereo BTL operation. Figure 2–3. TPA0243 EVMs C

Summary of the content on the page No. 16

R5 R1 2.4.2 TPA0243 EVM Connected for Single-Ended Stereo Headphone Output Figure 2–4 shows a TPA0243 EVM connected for single-ended stereo headphone operation. Figure 2–4. TPA0243 EVM Connected for Single-Ended Stereo Headphone Output 5 VDC VDD GND RO/MO+ TEXAS GND INSTRUMENTS LO/MO+ GND Audio 2000 STEREO/MONO Input RIN 5 VDC C6 (Right) R3 C8 C7 R4 + + U1 R8 C1 R2 R7 S1 Audio SHUTDOWN R9 R6 Input LIN C2 C5 (Left) GND C3 SHUTDOWN J1 GND VDD GND TPA0243 EVM Board SLOP269 Left Right GND 2-6 C4

Summary of the content on the page No. 17

2.5 Reference This section includes the TPA0243 EVM schematic, the EVM parts list, and the module PCB layers. 2.5.1 EVM Schematic Figure 2–5 shows the TPA0243 EVM schematic. Figure 2–5. TPA0243 EVM Schematic Diagram R2 50 kW C2 0.47 m F C7 TPA0243 R3 220 m F L IN 12 kW 1 10 C1 L /M – FILT_CAP L /M O O O O 1 m F 2 9 SHUT R6 SD L IN DOWN 1 kW 3 8 R1 NO S1 V GND DD 100 kW 4 7 J1 R9 BYPASS ST/M 1 kW R4 50 kW 5 6 C6 R R /M IN O O 0.47 m F C8 R5 220 m F R R8 12 kW C5 IN R /M + O O 100 kW 0.47 m F V

Summary of the content on the page No. 18

2.5.2 EVM Parts List Table 2–2 is the TPA0243 EVM parts list. Table 2–2.TPA0243 EVM Parts List EVM Manufacturer/ Ref. Description Size Vendor Number Qty. Part Number C1, C4 Capacitor, 1 m F @ 16 V, 1206 2 Murata Arrow +80%/–20%, nonpolarized GRM42-6Y5V105Z16BL GRM426Y5V105Z 016 C2, C5, Capacitor, 0.47 m F @ 16 V 0805 3 Murata Arrow C6 +80%/–20%, nonpolarized GRM40-Y5V474Z16 GRM40Y5V474Z 016 C3 Capacitor, 10 m F @ 6.3 V A 1 Panasonic Digi-Key ECS–TOJY106R PCS1106CT–ND C7, C8 Capacitor, 220 m F @

Summary of the content on the page No. 19

2.5.3 Module PCB Layers The following illustrations depict the TPA0243 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from any TI Sales Office. Figure 2–6. TPA0243 EVM PCB Figure 2–7. TPA0243 EVM Silkscreen 2-9

Summary of the content on the page No. 20

Figure 2–8. TPA0243 EVM Bottom Layer 2-10


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