程式碼範例或展示
TPA3255
- Differential Analog Inputs
- Total Output Power at 10%THD+N
- 315-W Stereo into 4 Ω in BTL Configuration
- 185-W Stereo into 8 Ω in BTL Configuration
- 600-W Mono into 2 Ω in PBTL Configuration
- Total Output Power at 1%THD+N
- 260-W Stereo into 4 Ω in BTL Configuration
- 150-W Stereo into 8 Ω in BTL Configuration
- 480-W Mono into 2 Ω in PBTL Configuration
- Advanced Integrated Feedback Design with High-speed Gate Driver Error Correction
(PurePath™ Ultra-HD)- Signal Bandwidth up to 100 kHz for High Frequency Content From HD Sources
- Ultra Low 0.006% THD+N at 1 W into 4 Ω and <0.01% THD+N to Clipping
- >65 dB PSRR (BTL, 1 kHz, No Input Signal)
- <85 µV (A-Weighted) Output Noise
- >111 dB (A Weighted) SNR
- Multiple Configurations Possible:
- Stereo, Mono, 2.1 and 4xSE
- Click and Pop Free Startup and Stop
- 90% Efficient Class-D Operation (4 Ω)
- Wide 18-V to 53.5V Supply Voltage Operation
- Self-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short Circuit Protection) With Error Reporting
- EMI Compliant When Used With Recommended System Design
TPA3255 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device is operated in AD-mode, and can drive up to 2 x 315 W into 4-Ω load at 10% THD and 2 x 150 W unclipped into 8-Ω load and features a 2 VRMS analog input interface that works seamlessly with high performance DACs such as TI’s PCM5242. In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5W. This is achieved through the use of 85 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
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開發板
SIDEGIG-GUITAREVM — Guitar SideGig 插入式模組
The TI Guitar SideGig plug-in module turns TI Audio Class-D amplifier EVM’s into a guitar, bass or musical instrument amplifier. The board features selectable “clean” and “drive” channels for traditional and overdriven guitar sounds. The clean channel offers volume, (...)
使用指南: PDF
開發板
SIDEGIG-PROTOEVM — 原型音訊外掛程式模組
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Start your prototype on the included breadboard or solder directly to the (...)
Start your prototype on the included breadboard or solder directly to the (...)
使用指南: PDF
開發板
SIDEGIG-XOVEREVM — 類比、主動交叉音訊外掛程式模組
The TI Analog, Active Crossover Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into a high quality, two-way speaker amplifier. The plug-in module makes it easy to remove the large and expensive passive crossover found in passive loudspeakers and create a biamped, two-way (...)
使用指南: PDF
計算工具
LCFILTER-CALC-TOOL — Class-D LC Filter Designer
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模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
參考設計
PMP10215 — 適用於 D 類音訊放大器的通用輸入至 3.3V、12V、36V、200W 連續 PSU 參考設計
This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (DDV) | 44 | Ultra Librarian |
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