Overview
The FDA801S-VYT is a high-performance, fully digital Class D audio amplifier developed by STMicroelectronics. This quad-channel amplifier is specifically designed for automotive applications, offering high efficiency, low noise, and robust diagnostic capabilities. The FDA801S-VYT integrates a 24-bit D/A converter, digital signal processing, and innovative self-diagnostic functions, making it an excellent choice for demanding audio systems.
With its ability to operate at low voltages (down to 6 V) and support 'start-stop' engine specifications, this amplifier is well-suited for modern automotive electronics. The device features an I2C bus interface for full configuration and diagnostics, ensuring high reliability and performance in various automotive environments.
Key Specifications
| Parameter | Value |
|---|---|
| Output Type | 4-Channel (Quad) |
| Max Output Power x Channels @ Load | 50W x 4 @ 4Ω |
| Voltage - Supply | 1.8V ~ 3.3V |
| Minimum Single Supply Voltage | 6 V |
| Maximum Single Supply Voltage | 25 V |
| Input Sampling Frequency | 44.1 kHz, 48 kHz, 96 kHz, 192 kHz |
| Efficiency | 93% (Class-D channels) |
| Package Type | LQFP64 (10x10x1.4 mm exp. pad up) |
| Operating Temperature | -40°C ~ 105°C (TA) |
| ESD Protection | Yes |
| AEC-Q100 Qualified | Yes |
Key Features
- High efficiency (93% in Class-D channels)
- Integrated 24-bit D/A converter with 110 dB S/N ratio and 108 dB dynamic range
- I2S and TDM digital input (3.3/1.8 V)
- Full I2C bus driving for configuration and diagnostics
- Channel-independent tristate, soft play/mute, and diagnostics
- Integrated fault protection, including overcurrent, thermal warning, and offset detection
- Clipping detector and EMI control for AM compatibility
- Low radiation function (LRF) and idle tones free DAC
- Output lowpass filter included in the feedback loop
- Ability to drive 2 Ω and 1 Ω loads
- Thermal and overcurrent protection
Applications
The FDA801S-VYT is designed for various applications, particularly in the automotive sector. It is suitable for:
- Automotive audio systems
- Telecommunications equipment
- Home appliances
- Industrial and medical equipment
- Lighting and power supplies
- Motor control and consumer electronics
Q & A
- Q: What is the maximum output power of the FDA801S-VYT?
A: The FDA801S-VYT can deliver up to 50W per channel at 4Ω load.
- Q: What is the input voltage range for the FDA801S-VYT?
A: The input voltage range is from 1.8V to 3.3V, with a minimum single supply voltage of 6V.
- Q: What type of package does the FDA801S-VYT come in?
A: The FDA801S-VYT is packaged in a 64-pin LQFP (10x10x1.4 mm exp. pad up).
- Q: Does the FDA801S-VYT have built-in diagnostic capabilities?
A: Yes, it includes a full diagnostics array with I2C bus interface for configuration and diagnostics.
- Q: What is the operating temperature range of the FDA801S-VYT?
A: The operating temperature range is from -40°C to 105°C (TA).
- Q: Is the FDA801S-VYT AEC-Q100 qualified?
A: Yes, the FDA801S-VYT is AEC-Q100 qualified.
- Q: What kind of protection does the FDA801S-VYT offer?
A: It offers thermal protection, overcurrent protection, and ESD protection.
- Q: Can the FDA801S-VYT drive low impedance loads?
A: Yes, it can drive 2 Ω and 1 Ω loads.
- Q: How does the FDA801S-VYT manage EMI?
A: It includes EMI control for AM compatibility and complies with IEC61967-4 and IEC62132-4 norms.
- Q: What is the warranty period for the FDA801S-VYT when purchased from authorized distributors?
A: The warranty period can vary, but typically it is 1 year, covering defects in materials and workmanship under normal use.
