Ruigu Electronic

Here is a comparison of the performance between NTP8849 and TAS5805:

2025-08-26

Output PowerTI
NTP8849: It can reach a maximum output power of 60W under a 4Ω load with THD < 1%, and provides a 2×20W stereo mode without a heat sink.
TAS5805: In the 2.0 mode (8Ω, 21V, THD+N = 1%), it can provide 2×23W of power; in the mono mode (4Ω, 21V, THD+N = 1%), it can provide 45W of power.
Audio PerformanceTI
NTP8849: The distortion is lower than 1%, and the signal-to-noise ratio is higher than 95dB. It adopts APEQ patented technology, which can maximize the release of the speaker box sound effect. It can also efficiently prevent distortion through Multi DRC＋POST DRC＋RS DRC power control.
TAS5805: SNR ≥ 107dB (A-weighted), and the noise level is < 40µVRMS. The integrated audio processor and 96kHz architecture support advanced audio processing flows, including SRC, 15 BQs per channel, etc.
Power Supply CharacteristicsTI
NTP8849: The operating power supply voltage range is 8V to 28V.
TAS5805: PVDD is 4.5V to 26.4V, and DVDD and I/O are 1.8V or 3.3V. The static current is low. For example, it is 16.5mA when PVDD = 13.5V and a 22µH + 0.68µF filter is used.
Other FeaturesTI
NTP8849: It adopts a full – digital closed – loop topology, which can effectively suppress harmonic signals. It has functions such as over – current protection, over – temperature protection, and low – voltage protection.
TAS5805: It adopts a no – inductor design, which can provide higher efficiency and smaller occupied space. It has functions such as over – heat protection, under – voltage protection, and short – circuit protection. It also adopts advanced EMI suppression technology, which can use cheap ferrite bead filters to reduce the layout space and system cost.