Texas Instruments TAS5121 Data Handbook/Manual
Summary
This comprehensive technical datasheet introduces the TAS5121, a high-performance digital amplifier designed for advanced audio applications. Offering robust power stages up to 100W with ultra-low total harmonic distortion, this device is ideal for professionals building sophisticated home theater and multi-component mini/micro systems. The manual provides detailed specifications, power guidelines, and application information—allowing audio engineers to integrate high-efficiency amplification into complex digital designs while ensuring system stability and performance.
Page 1 Text Content
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www.ti.com
SLES086A − NOVEMBER 2003 − REVISED MARCH 2004
FEATURES APPLICATIONS
DVD Receiver
100-W RMS Power (BTL) Into 4 Ω With Less Home Theatre Than 10% THD+N
Mini/Micro Component Systems Internet Music Appliance
80-W RMS Power (BTL) Into 4 Ω With Less Than 0.2% THD+N
DESCRIPTION 0.05% THD+N at 1 W Into 4 Ω The TAS5121 is a high-performance digital amplifier power stage designed to drive a 4-Ω speaker up to 100 W.
Power Stage Efficiency Greater Than 90% The device incorporates Pure Path Digital technology Into 4 Ω Load and can be used with a TI audio PWM processor and a
simple passive demodulation filter to deliver high-quality,
Self-Protecting Design tp t P er
high-efficiency digital audio amplification. The efficiency of this digital amplifier can be greater than
36-Pin PSOP3 Package
90%, depending on the system design. Overcurrent 3.3-V Digital Interface protection, overtemperature protection, and undervoltage protection are built into the TAS5121, safeguarding the
EMI Compliant When Used With device and speakers against fault conditions that could Recommended System Design damage the system.
TOTAL HARMONIC DISTORTION + NOISE UNCLIPPED OUTPUT POWER
vs vs POWER H-BRIDGE VOLTAGE
RL = 4 Ω TC = 75°C Gain = 3 d B
P − Power − W PVDD_X − H-Bridge Voltage − V
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Pure Path Digital and Power PAD are trademarks of Texas Instruments. Other trademarks are the property of their respective owners. ! " #$ % !& % Copyright 2004, Texas Instruments Incorporated "! "! '! ! !( ! %% ) *& % " ! + %! ! ! $* $ %! ! + $$ "! ! &
Page Summary Contents For Texas Instruments TAS5121 Data Handbook/Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 18 |
| File Size | 318.77 KB |
| Published | July 22, 2026 |
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Frequently Asked Questions
What level of protection mechanisms are built into the TAS5121 amplifier?
It features self-protecting design, including overcurrent, overtemperature, and undervoltage protection.
How should I handle or store the leads to avoid static damage?
The leads must be shorted together, or the device needs to be placed in conductive foam for storage or handling.
Does the amplifier require specific cooling measures when using the DKD package?
Yes, it requires conductive cooling using the exposed metal pad; ambient air is not sufficient for heat sinking.
What is the reported efficiency and performance of the digital amplifier?
The power stage efficiency can be greater than 90%, while THD+N is less than 0.2%.