設計工具
TPA3251
- Differential Analog Inputs
- Total Output Power at 10%THD+N
- 175-W Stereo into 4 Ω in BTL Configuration
- 220-W Stereo into 3 Ω in BTL Configuration
- 350-W Mono into 2 Ω in PBTL Configuration
- Total Output Power at 1%THD+N
- 140-W Stereo into 4 Ω in BTL Configuration
- 175-W Stereo into 3 Ω in BTL Configuration
- 285-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 0.005% THD+N at 1 W into 4 Ω and
<0.01% THD+N to Clipping - 60 dB PSRR (BTL, No Input Signal)
- <60 µV (A-Weighted) Output Noise
- >111 dB (A Weighted) SNR
- Signal Bandwidth up to 100 kHz for High
- Multiple Configurations Possible:
- Stereo, Mono, 2.1 and 4xSE
- Click and Pop Free Startup and Stop
- 90% Efficient Class-D Operation (4 Ω)
- Wide 12-V to 36-V 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
TPA3251 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 can drive up to 2 x 175 W into 4-Ω load and 2 x 220 W into 3-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, TPA3251 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 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
The TI Prototype Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into your sandbox. Need to prototype a pre-amplifier circuit or test an opamp with TI Class-D EVMs, then start with the DIY Audio Plug-in Module.
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
開發板
TPA3251EVM — TPA3251 175W 立體聲道 / 350W 單聲道 Ultra-HD 類比輸入 D 類模組
The TPA3251EVM Ultra-HD evaluation module demonstrates the TPA3251 integrated circuit from Texas Instruments. The TPA3251 is a high-performance Class-D amplifier that enables true premium sound quality with high efficiency Class-D technology. It features an advanced integrated feedback design and (...)
使用指南: PDF
設計工具
SLAC736 — TPA3251 Inductor Study
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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
TIDA-00874 — 具數位輸入和處理能力的高傳真 175W D 類音訊放大器參考設計
This design turns the extremely high performance analog input TPA3251 Class-D amplifier into a digital input system with audio processing using the highly versatile PCM5242 differential output DAC. Now the full performance of TPA3251 amplifier can be realized with a variety of digital input (...)
參考設計
PMP11769 — 700-W 車用外部音訊放大器參考設計
This reference design contains a boost converter that provides 36.0-V @ 10.0-A continuous / 20.0-A peak from an input voltage of 9 to 16 V. It contains two premium Class-D audio amplifiers which provide 2x 175-W @ 4-Ω load (left and right channel) and 1x 350-W @ 2-Ω (subwoofer). (...)
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 (...)
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