NXP has introduced a family of dual channel Class-D amplifiers that according to the vendor's promises deliver high sound quality and energy efficiency. The NXP TDF8599 Class-D amplifier family operates with maximum output power from 70 to 130 watts (250 watts mono), significantly reducing power dissipation in the vehicle head-unit when compared to traditional Class-AB amplifiers and ensuring more efficient heat management.
The vendor even goes so far to promise concert hall-like sound quality for the users of the amplifiers, resulting from their high dynamic audio range. The TDF8599 amplifier family complements NXP's existing portfolio of energy-efficient Class-D amplifiers, and were developed to fit high-end requirements.
The TDF8599 family includes the TDF8599A and TDF8599B dual Bridge-Tied Load (BTL) car audio amplifiers comprising a dual NDMOS-Transistor output stage based on Silicon-on-insulator (SOI) BCD MOS technology. The NXP TDF8599A can operate in either non-I2C-bus mode or I2C-bus mode. When in I2C-bus mode, DC load detection results and fault conditions can be easily read back to the device. Up to 15 I2C-bus addresses can be selected. All products are fully qualified according to the AEC-Q100 automotive quality standard.
Automotive audio system vendor Harman Becker already announced to use the TDF8599 series in its multi-channel audio amplifiers. According to the NXP customer the devices help to drastically reduce thermal leakage power and at the same time offer very high sound quality.