TDA8920CJ/N1,112

Overview

The TDA8920CJ/N1,112 is a high-efficiency Class-D audio power amplifier manufactured by NXP Semiconductors. It operates within a symmetrical supply voltage range of ±12.5 V to ±32.5 V and features low quiescent current consumption. The device supports stereo single-ended (SE) or mono bridge-tied load (BTL) configurations with fixed gains of 30 dB and 36 dB respectively. Typical output power reaches 2 × 110 W in SE mode at 4 Ω and 220 W in BTL mode at 8 Ω. It includes advanced protection mechanisms such as thermal foldback, overcurrent protection, and window protection.

Feature Summary

• Supports stereo single-ended and mono bridge-tied load configurations via fully differential inputs
• Features smooth pop noise-free start-up and switch-off using zero dead time switching
• Includes advanced protection strategies for overvoltage, overtemperature, and short-circuit conditions
• Offers internal or external clock options with a typical carrier frequency between 250 kHz and 450 kHz

Applications

• DVD systems
• Mini and micro receivers
• Home Theater In A Box (HTIAB) systems
• High-power speaker systems

Procurement Notes

Verify the specific ordering suffix /N1,112 against official documentation to confirm package type and marking details. Ensure compatibility with the DBS23P power package requirements. Confirm that the component meets all relevant environmental standards required for the target application before finalizing procurement decisions.

Selection Notes

Select this amplifier for applications requiring high output power efficiency and robust protection features. Consider the symmetrical supply voltage range and the need for an LC demodulation filter. Evaluate thermal management requirements given the high power dissipation capabilities and junction temperature limits specified in the datasheet.

Part Context

The TDA8920C belongs to NXP's Class-D audio amplifier family, designed for high-efficiency sound reproduction. It is pin-compatible with other models like the TDA8950/20B in HSOP24 and DBS23P packages. This series targets consumer electronics needing powerful yet compact audio solutions with minimal distortion and low standby currents.

Replacement Considerations

The TDA8920CJ is pin-compatible with the TDA8950/20B for both HSOP24 and DBS23P packages. Verify electrical specifications and thermal characteristics when substituting to ensure system performance remains within acceptable limits.