TAS5103

15W 立体声数字放大器功率级

The TAS5102/ are integrated stereo digital amplifier power stages with an advanced protection system. The TAS5102/TAS5103 are capable of driving an 8-Ω bridge-tied load BTL at up to 20 W/15 W per channel with low integrated noise at the output, low THD+N performance, and low idle power dissipation.

A low-cost, high-fidelity audio system can be built using a chipset, comprising a modulator e.g., TAS5086 and the TAS5102/TAS5103. This system only requires a simple passive LC demodulation filter to deliver high-quality, high-efficiency audio amplification with proven EMI compliance. These devices require two power supplies, at 3.3 V for VREG, and up to 23 V for PVDD. The TAS5102/TAS5103 does not require power-up sequencing due to internal power-on reset. The efficiency of this digital amplifier is greater than 90% into 8 Ω, which enables the use of smaller power supplies and heatsinks.

The TAS5102/3 has an innovative protection system integrated on chip, safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and overtemperature protection. The TAS5102/TAS5103 has a new proprietary current-limiting circuit that reduces the possibility of device shutdown during high-level music transients.

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2×20 W at 10% THD+N Into 8-Ω BTL at 18 V With Heatsink for TAS5102

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2×15 W at 10% THD+N Into 8-Ω BTL at 15.5 V for TAS5103

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2×10 W at 10% THD+N Into 8-Ω BTL at 13 V

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>100-dB SNR A-Weighted

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<0.1% THD+N at 1 W

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Thermally Enhanced Package: 32-pin HTSSOP

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DAD TAS5102 Pad Up

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DAP TAS5103 Pad Down

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High-Efficiency Power Stage >90% With 180-Ω Output MOSFETs

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Wide PVDD Range from 8V to 23V

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Power-On Reset for Protection on Power Up Without Any Power-Supply Sequencing

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Integrated Self-Protection Circuits Including Undervoltage, Overtemperature, Overcurrent, Short Circuit

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Built-In Regulator for Gate Drive Supply

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Error Reporting

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EMI Compliant When Used With Recommended System Design

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APPLICATIONS

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Televisions

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Mini/Micro Audio Systems

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DVD Receivers

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Home Theaters