TAS5121IDKD

Overview

The TAS5121IDKD is a mono digital amplifier power stage manufactured by Texas Instruments. It operates within a supply voltage range of 10.8V to 13.2V and delivers 100W of output power into an 8-ohm load. The device features a bandwidth of 20 kHz with a total harmonic distortion plus noise (THD+N) of 0.2%. It utilizes a 36-pin HSSOP package and functions as a Class-AB audio amplifier. The component supports single input type and triple power supply configuration, with operating temperatures ranging from -40°C to +85°C.

Feature Summary

• Integrates digital amplification capabilities for high-efficiency audio processing
• Provides dynamic range control with compression and expansion across definable signal regions
• Incorporates loudness compensation mechanisms for optimized audio performance

Applications

• Multichannel audio systems utilizing PWM-based open-loop digital class-D architectures
• High-performance digital power amplifier stages requiring advanced integration
• Audio systems employing demodulation filters to attenuate out-of-band high-frequency components

Procurement Notes

Verify the specific suffix against official documentation to confirm exact package and temperature grade variations. Ensure compatibility with required supply voltages between 10.8V and 13.2V. Confirm RoHS compliance status through manufacturer datasheets before procurement. Validate pinout configurations for the 36-pin HSSOP package during design integration.

Selection Notes

Select this component for applications requiring a 100W mono output stage with integrated digital processing. Consider the 36-pin HSSOP footprint for PCB layout constraints. Evaluate thermal management requirements given the 100W power delivery capability. Verify system compatibility with the specified 8-ohm load impedance and 20 kHz bandwidth specifications.

Part Context

Part of the TAS5121 series from Texas Instruments, designed for multichannel audio system implementations. The series addresses inherent nonlinearity in PWM processes through high-performance digital power amplification. It serves as a core component in systems combining digital pulse width modulation with analog power stages for enhanced audio fidelity.

Replacement Considerations

TAS5121IDKDR E4 is a verified substitute part number within the same family.