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100-W Mono Digital Amplifier Power Stage


Package | PIN: DKD | 36
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $15.35
10-24 $13.81
25-99 $12.90
100-249 $11.56
250-499 $10.79
500-749 $9.39
750-999 $8.13
1000+ $7.96


  • 100-W RMS Power (BTL) Into 4 With Less Than 10% THD+N
  • 80-W RMS Power (BTL) Into 4 With Less Than 0.2% THD+N
  • 0.09% THD+N at 1 W Into 4
  • Power Stage Efficiency Greater Than 90% Into 4- Load
  • Self-Protecting Design
  • Industrial Temperature Rating
  • 36-Pin PSOP3 Package
  • 3.3-V Digital Interface
  • EMI Compliant When Used With Recommended System Design
    • DVD Receiver
    • Home Theatre
    • Mini/Micro Component Systems
    • Internet Music Appliance

PurePath Digital, PowerPAD are trademarks of Texas Instruments. All other trademarks are the property of their respective owners.

Texas Instruments  TAS5121IDKD

The TAS5121I is a high-performance, digital-amplifier power stage designed to drive a 4- speaker up to 100 W. The TAS5121I is rated for operation at industrial temperatures. The device incorporates PurePath Digital™ technology and can be used with a TI audio pulse-width modulation (PWM) processor and a simple passive demodulation filter to deliver high-quality, high-efficiency, digital-audio amplification.

The efficiency of this digital amplifier can be greater than 90%, depending on the system design. Overcurrent protection, overtemperature protection, and undervoltage protection are built into the TAS5121I, safeguarding the device and speakers against fault conditions that could damage the system.