TAS5132
20W 立体声数字放大器功率级
The is an integrated stereo digital amplifier power stage with an advanced protection system. The TAS5132 is capable of driving a 6- bridge-tied load BTL at up to 25 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 TAS5132. This system only requires a simple passive LC demodulation filter to deliver high-quality, high-efficiency audio amplification with proven EMI compliance. This device requires two power supplies, at 12 V for GVDD and VDD, and at 18 V for PVDD. The TAS5132 does not require power-up sequencing due to internal power-on reset. The efficiency of this digital amplifier is greater than 90% into 8 , which enables the use of smaller power supplies and heatsinks.
The TAS5132 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 TAS5132 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- BTL
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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:
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- DDV 44-pin HTSSOP
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- High-Efficiency Power Stage >90% With 140-m Output MOSFETs
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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, Overload, Short Circuit
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- PWM Activity Detector to detect stopped PWM inputs and protect the system
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- Error Reporting
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- EMI Compliant When Used With Recommended System Design
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- Intelligent Gate Drive
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- Pin Compatible With the TAS5142DDV
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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
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