意法半导体首创了具有数字输入的汽车D类放大器，为最重要的汽车音频制造商提供音频功率放大器，包括高级音响系统和车头单元。
我们提供广泛的产品系列，覆盖所有的多通道需求，持续开发创新的解决方案，永远确保最佳的声音质量、最大的能效和最先进的特性。
- 高效率
- 短路、静电放电（ESD）、负载突降和过热等超限保护功能的稳定汽车级设计
- 超先进的诊断处理器
- 专有反馈环架构，满足低系统成本及电磁辐射的要求
- 全数字处理
- 驱动超低阻抗扬声器（低至1欧姆）的能力
- 符合起/止和混合引擎标准要求
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Power amplifier system for automotive applications
Get started with ST's FDA801 - Best Car Radio ClassD efficiency on the market - 4x50 W class-D digital input power amplifier with I2C diagnostics and low voltage operation
New single-channel Class-D amplifiers with unique diagnostic matrix ensures high-end audio performance
Featuring advanced diagnostics, high efficiency and a unique load current monitor feature 
to ensure high system reliability, FDA803D and FDA903D are the latest amplifiers in our FDA80x family of automotive Class-D audio power amplifiers.
Thanks to an innovative architecture that includes a low-pass output filter in the feedback loop, these devices offer high-quality sound at a reduced system cost. Moreover, supporting a very wide supply voltage range (from 3.3 to 18 V) they are the best fit for any automotive audio application including standard car audio systems to today's e-call and acoustic vehicle alerting systems (AVAS).
to ensure high system reliability, FDA803D and FDA903D are the latest amplifiers in our FDA80x family of automotive Class-D audio power amplifiers. Thanks to an innovative architecture that includes a low-pass output filter in the feedback loop, these devices offer high-quality sound at a reduced system cost. Moreover, supporting a very wide supply voltage range (from 3.3 to 18 V) they are the best fit for any automotive audio application including standard car audio systems to today's e-call and acoustic vehicle alerting systems (AVAS).
- FDA802 2x150 W - 1x300 W class-D digital input power amplifier with diagnostics features and low voltage operation
- FDA2100BLV 2x180 W / 1x300 W 35V low voltage operation PWM digital input power amplifier with I2C diagnostics and step-up driver
- FDA450LV 4x50W low voltage operation PWM digital input power amplifier with I2C diagnostics
- FDA903U 1 x 45 W class D digital input automotive power amplifier with load current monitoring, wide voltage operation range for car audio and telematic - slug up version
- FDA4100LV 4x135W / 2x270W low voltage operation PWM digital input power amplifier with I2C diagnostics and step-up driver
- FDA801 4x50 W class-D digital input power amplifier with I2C diagnostics and low voltage operation
- FDA803U 1 x 45 W class D digital input automotive power amplifier with diagnostics, wide voltage operation range for car audio and telematic
- FDA2100LV 2x180 W / 1x300 W low voltage operation PWM digital input power amplifier with I2C diagnostics and step-up driver
- FDA901 4 x 50 W class-D digital input power amplifier with load current monitoring and low voltage operation
- FDA801B 4x50 W class-D digital input power amplifier with I2C diagnostics, Digital Impedance Meter and low voltage operation
- FDA903D 1 x 45 W class D digital input automotive power amplifier with load current monitoring, wide voltage operation range for car audio and telematic - slug down version
- FDA802B 2x150 W - 1x300 W class D digital input automotive power amplifier with load value recognition and low voltage operation
- FDA803D 1 x 45 W class D digital input automotive power amplifier with diagnostics, wide voltage operation range for car audio and telematics
