Datasheet Texas Instruments TAS2557YZT — Datenblatt

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SLASEC2A – NOVEMBER 2016 – REVISED FEBRUARY 2017 TAS2557 5.7-W Class-D Mono Audio Amplifier with Class-H Boost and Speaker Sense
1 Features 3 Description The TAS2557 device is a state-of-the-art Class-D
audio amplifier which is a full system on a Chip
(SoC). The device features a ultra low-noise audio
DAC and Class-D power amplifier which incorporates
speaker voltage and current sensing feedback. An
on-chip, low-latency DSP supports Texas Instruments
SmartAmp speaker protection algorithms to
maximizes loudness while maintaining safe speaker
conditions. 1 Ultra Low-Noise Mono Boosted Class-D Amplifier
– 5.7 W at 1% THD+N and 6.9 W at 10%
THD+N into 4-О© Load from 4.2-V Supply
– 3.8 W at 1% THD+N and 4.5 W at 10%
THD+N into 8-О© Load from 4.2-V Supply
Output Noise for DAC + Class-D (ICN) is 15.9 ВµV
DAC + Class-D SNR 111 dB at 1%THD+N/8 О©
THD+N –90 dB at 1 W / 8 О© with Flat Frequency …