STMicroelectronics FDA2100LV

The FDA2100LV is a high-performance, fully digital single-chip class D amplifier designed by STMicroelectronics. It is specifically intended for automotive audio applications, particularly in car radio systems. This amplifier utilizes BCD6-SOI (Silicon On Insulation) technology, integrating a high-performance D/A converter with powerful MOSFET output amplifiers. This integration enables outstanding efficiency compared to traditional class AB amplifiers. The device features a built-in step-up driver, allowing up to 150 W output power with a standard 14 V supply voltage, and is compliant with recent OEM specifications for low voltage operation during engine stop-start conditions, contributing to reduced emissions and environmental protection.

• Integrated 105 dB D/A conversion with 110 dB S/N ratio and 105 dB dynamic range
• Built-in step-up driver for up to 150 W output power with a standard 14 V supply voltage
• Full I2C bus driving (3.3/1.8 V) with digital diagnostics including DC and AC load detection
• EMI control for FM/AM compatibility and low radiation function (LRF)
• Dithering possibility and low component count output low-pass filter included in the feedback loop
• Very flexible fault detection through integrated diagnostics, including load detection, under/over voltage events, chip over temperature, digital input offset, output clipping, and over temperature of external components
• Protected against several kinds of misconnections, with offset detector (play or mute mode), two independent short circuit protections, and clipping detector
• C-MOS compatible enable pin (3.3/5 V) and ESD protection

The FDA2100LV is primarily designed for automotive audio applications, specifically in car radio systems. Its features make it suitable for use in standard single DIN car-radio boxes, even when integrated with tuners. The device's compliance with recent OEM specifications for low voltage operation during engine stop-start conditions makes it an ideal choice for modern automotive systems focused on reducing emissions.

1. What is the FDA2100LV?

   The FDA2100LV is a fully digital single-chip class D amplifier designed for automotive audio applications.

2. What is the output power capability of the FDA2100LV?

   The FDA2100LV can deliver up to 2 x 180 W or 1 x 300 W of output power.

3. What is the supply voltage range for the FDA2100LV?

   The supply voltage range is from 6 V to 35 V.

4. What digital input formats does the FDA2100LV support?

   The FDA2100LV supports I2S and TDM digital input formats at 3.3/1.8 V.

5. What are the key diagnostic features of the FDA2100LV?

   The device includes diagnostics for load detection, under/over voltage events, chip over temperature, digital input offset, output clipping, and over temperature of external components.

6. How does the FDA2100LV manage EMI?

   The FDA2100LV includes features for EMI control to ensure compatibility with FM/AM and has a low radiation function (LRF).

7. What is the significance of the built-in step-up driver in the FDA2100LV?

   The built-in step-up driver allows for up to 150 W output power with a standard 14 V supply voltage.

8. What is the package type of the FDA2100LV?

   The FDA2100LV comes in a TQFP64 (exposed pad up) package.

9. Is the FDA2100LV compliant with automotive standards?

   Yes, it is compliant with AEC-Q100 and recent OEM specifications for low voltage operation during engine stop-start conditions.

10. What are the protection features of the FDA2100LV?

    The device is protected against misconnections, with features such as offset detection, short circuit protection, clipping detection, and ESD protection.

11. How does the FDA2100LV enhance audio performance?

    The device includes a feedback loop with an output L-C low-pass filter, ensuring superior frequency response linearity and lower distortion.