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TI(德州仪器) TAS5631B
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  • TI(德州仪器) TAS5631B
  • TI(德州仪器) TAS5631B
  • TI(德州仪器) TAS5631B
  • TI(德州仪器) TAS5631B
  • TI(德州仪器) TAS5631B
  • TI(德州仪器) TAS5631B
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TAS5631B

TAS5631B

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300W 立体声、400W 单声道、25V 至 52.5V 电源电压、PWM 输入 D 级音频放大器

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The TAS5631B is a high-performance PWM input class-D amplifier with integrated closed-loop feedback technology (known as PurePath HD technology) with the ability to drive up to 300 W (1) stereo into 4-Ω to 8-Ω speakers from a single 50-V 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 does not increase until 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 80 kHz for High-Frequency Content From HD Sources
    • Ultralow 0.03% THD at 1 W Into 4 Ω
    • Flat THD at All Frequencies for Natural Sound
    • 80-dB PSRR (BTL, No Input Signal)
    • >100-dB (A-weighted) SNR
    • Click- and Pop-Free Start-Up
  • 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
    • Quad Single-Ended Outputs
  • Total Output Power at 10% THD+N
    • 400 W per Channel in Mono PBTL Configuration
    • 300 W per Channel in Stereo BTL Configuration
    • 145 W per Channel in Quad Single-Ended Configuration
  • High-Efficiency Power Stage (>88%) With 60-mΩ Output MOSFETs
  • Two Thermally Enhanced Package Options:
    • PHD (64-Pin QFP)
    • DKD (44-Pin PSOP3)
  • Self-Protection Design (Including Undervoltage, Overtemperature, Clipping,
    and Short-Circuit Protection) With Error Reporting
  • EMI Compliant When Used With Recommended System Design
  • APPLICATIONS
    • Mini Combo System
    • AV Receivers
    • DVD Receivers
    • Active Speakers

All other trademarks are the property of their respective owners

Audio input typePWM
ArchitectureClass-D
Speaker channels (max)4
RatingCatalog
Power stage supply (max) (V)52.5
Power stage supply (min) (V)25
Load (min) (Ω)4
Output power (W)300
SNR (dB)103
THD + N at 1 kHz (%)0.03
Iq (typ) (mA)24.8
Control interfaceHardware
Closed/open loopClosed
Analog supply (min) (V)10.8
Analog supply voltage (max) (V)13.2
PSRR (dB)80
Operating temperature range (°C)0 to 70
HTQFP (PHD)64256 mm² 16 x 16
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