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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 ....................................................
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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. TI TPA3100D2 Audio Power Amplifier EVM – Bottom View 2 TPA3100D2 Audio Power Amplifier Evaluation Modul
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www.ti.com Operation 1.2 TPA3100D2 EVM Specifications V Supply voltage range 10 V to 26 V CC I Supply current 4 A max CC P Continuous output power per channel, 8 Ω, V = 18 V, THD + N = 3.5% 20 W O CC R Minimum load impedance 3.2 Ω L 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. Connections to the EVM module can be made using banana plugs for the power supply and output
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www.ti.com Operation Table 1. Gain Settings (1) (1) GAIN1 (J13) GAIN0 (J12) Amplifier Gain (dB) ON ON 20 ON OFF 26 OFF ON 32 OFF OFF 36 (1) 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. If the outputs are shorted to GND, V , or to each other, this terminal goes high and remains high until one CC of the following operations is performed: power is cycled, SHUTDOWN is cycled, or MU
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L2 33mH L3 33mH L1 33mH L4 33mH www.ti.com TPA3100D2 EVM Schematic 3 TPA3100D2 EVM Schematic J6 J5 VCC ROUT+ ROUT- S1 0.47mF C23 VREG S2 C9 C8 0.1 0.1 J11 mF mF TP1 FAULT VCC 0.22mF 0.22mF C4 C3 J9 J7 VCC NC NC C11 C18 RINN PVCCR 1mF RIN 1.0mF C12 PVCCR RINP 220mF C21 1.0mF AGND PGNDR C13 LIN LINP PGNDR J2 1.0mF C16 J8 1mF C14 VCLAMPR LINN GND TPA3100D2 1.0mF VCLAMPL NC J10 J12 1mF C15 GAIN0 PGNDL J13 GAIN1 PGNDL J14 220mF C22 MSTR/SLV PVCCL TP2 1mF SYNC PVCCL C19 NC NC VCC Connected at PowerPad
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www.ti.com TPA3100D2 EVM PCB Layers 4 TPA3100D2 EVM PCB Layers Figure 4. TPA3100D2 EVM – Top Layer 6 TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter SLOU179–December 2005
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www.ti.com TPA3100D2 EVM PCB Layers Figure 5. TPA3100D2 EVM – Bottom Layer SLOU179–December 2005 TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter 7
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www.ti.com TPA3100D2 EVM Parts List 5 TPA3100D2 EVM Parts List Table 2. TPA3100D2 EVM Parts List Ref. Description Size Qty Mfg Part # Vendor # 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, 1.0-μF, ±10%, X5R, 10-V 0603 5 TD
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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. Operation of this equipment in other environments may cause interference with radio communications, in wh
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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. These types of devices can be identified using the EVM schem
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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. All products are sold subject to TI’s terms and conditions of sale supplied at the t
