The TAS5612A is a high performance digital input Class D amplifier with integrated closed loop feedback technology (known as PurePath™ HD) with the ability to drive up to 125W 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. 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.

• 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
  • Ultralow 0.01% THD at 1W into 8Ω
  • 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 TAS5631, TAS5616 and TAS5614
• 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
  • 125W per Channel in Stereo BTL Configuration
• 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:
  • PHD (64-Pin QFP)
• APPLICATIONS
  • Home Theater Systems
  • AV Receivers
  • DVD/Blu-ray? Disc Receivers
  • Mini Combo Systems
  • Active Speakers and Subwoofers

All other trademarks are the property of their respective owners

• Audio input type
• PWM
• 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)
• 103
• THD + N @ 1 kHz (%)
• 0.03
• Iq (Typ) (mA)
• 21.5
• Control interface
• Hardware
• Closed/open loop
• Closed
• Analog supply (Min) (V)
• 10.8
• Analog supply (Max) (V)
• 13.2
• PSRR (dB)
• 80
• Operating temperature range (C)
• 0 to 70

TAS5612A的完整型号有：TAS5612APHD、TAS5612APHDR，以下是这些产品的关键参数及官网采购报价：

TAS5612APHD，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TAS5612APHD的批量USD价格：5.869（1000+）

TAS5612APHDR，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TAS5612APHDR的批量USD价格：4.891（1000+）

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