The TAS5611A is a high performance analog input Class D amplifier with integrated closed loop feedback technology (known as PurePath™ HD) with the ability to drive up to 125W⁽¹⁾ Stereo into 4 to 8 Ω Speakers from a single 32.5V supply.

PurePath™ HD technology enables traditional AB-Amplifier performance (<0.03% THD) levels while providing the power efficiency of traditional class D amplifiers.

Unlike traditional Class D amplifiers, the distortion curve only increases once the output levels move into clipping.

PurePath™ HD technology enables lower idle losses making the device even more efficient.

⁽¹⁾ Achievable output power levels are dependent on the thermal configuration of the target application. A high performance thermal interface material between the package exposed heatslug and the heat sink should be used to achieve high output power levels.

• PurePath? HD Enabled Integrated Feedback Provides:
  • Signal Bandwidth up to 80kHz for High Frequency Content From HD Sources
  • Ultralow 0.03% THD at 1W into 4Ω
  • Flat THD at all Frequencies for Natural Sound
  • 80dB PSRR (BTL, No Input Signal)
  • >100dB (A weighted) SNR
  • Click and Pop Free Startup
• Pin compatible with TAS5630, TAS5615 and TAS5613
• Multiple Configurations Possible on the Same PCB With Stuffing Options:
  • Mono Parallel Bridge Tied Load (PBTL)
  • Stereo Bridge Tied Load (BTL)
  • 2.1 Single Ended Stereo Pair and Bridge Tied Load Subwoofer
• Total Output Power at 10%THD+N
  • 250W in Mono PBTL Configuration into 2Ω
  • 125W per Channel in Stereo BTL Configuration into 4Ω
• Total Output Power in BTL configuration at 1%THD+N
  • 130W Stereo into 3Ω
  • 105W Stereo into 4Ω
  • 70W Stereo into 6Ω
  • 55W Stereo into 8Ω
• >90% Efficient Power Stage With 60-mΩ Output MOSFETs
• Self-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short-Circuit Protection) With Error Reporting
• EMI Compliant When Used With Recommended System Design
• Thermally Enhanced Package Options:
  • PHD (64-Pin QFP)
• APPLICATIONS
  • Home Theater Systems
  • AV Receivers
  • DVD/Blu-ray Receivers
  • Mini Combo System
  • Active Speakers and Subwoofers

(1) Achievable output power levels are dependent on the thermal configuration of the target application. A high performance thermal interface material between the package exposed heatslug and the heat sink should be used to achieve high output power levels. All other trademarks are the property of their respective owners

• Audio input type
• Analog Input
• Architecture
• Class-D
• Speaker channels (Max)
• 4
• Power stage supply (Max) (V)
• 34.1
• Power stage supply (Min) (V)
• 16
• Load (Min) (ohms)
• 4
• Output power (W)
• 125
• SNR (dB)
• 100
• THD + N @ 1 kHz (%)
• 0.03
• Iq (Typ) (mA)
• 10
• Control interface
• Hardware
• Closed/open loop
• Closed
• Analog supply (Min) (V)
• 10.8
• Analog supply (Max) (V)
• 13.2
• Sampling rate (Max) (kHz)
• 400
• PSRR (dB)
• 80
• Operating temperature range (C)
• 0 to 70

TAS5611A的完整型号有：TAS5611APHD、TAS5611APHDR，以下是这些产品的关键参数及官网采购报价：

TAS5611APHD，工作温度：0 to 70，封装：HTQFP (PHD)-64，包装数量MPQ：90个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TAS5611APHD的批量USD价格：6.358（1000+）

TAS5611APHDR，工作温度：0 to 70，封装：HTQFP (PHD)-64，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TAS5611APHDR的批量USD价格：5.38（1000+）

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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PMP10710 — 采用最佳升压控制器的公告音频参考设计

PMP10710 是一款可用于 100W +100W 立体声或 200W 低音炮应用的 200W 公告音频系统设计。此设计大致分为四个主要级：

采用 LM5122 控制器 IC 的单相同步升压转换器。此设计接受 10V 至 15VIN 输入电压（标称为 12VIN），可实现 30V 输出，并且能够为负载提供 6.5A 连续电流。

采用 TAS5611 D 类器件的 100W + 100W 立体声音频放大器。

采用 OPA1632 差动放大器的针对立体声输入的单端至差动转换（使用有源低通滤波器）。

使用 Simple Switcher LM16006 满足所有辅助电源需求。