FDA803S数据手册ST中文资料规格书

描述 Description

The FDA803S is the new ST single channel class-D audio amplifier, specifically designed for automotive applications. The FDA803S integrates a 24-bit, 100 dB DAC conversion and PWM class-D output stage with feedback before LC filter. This configuration enables the design of a compact and inexpensive application.

The FDA803S supports I2S and TDM digital bit stream up to 16CH with several sampling frequencies from 8 kHz up to 96 kHz. FDA803S embeds a complete diagnostic in play to support the most demanding OEM requirements in terms of speaker control and system robustness/ reliability.

The FDA803S supports start stop cranking down to 3.3 V and it is available in a very compact and thin QFN 5x5 package. Thus the FDA803S is suitable for any level of automotive application especially e-Call and Telematics.

特性 Features

• AEC-Q100 qualified
• Integrated 100 dB D/A conversion
• I2S and TDM digital input (up to 16CH TDM)
• Selectable input sample rate frequency (8/16/32/44.1/48/96 kHz)
• Wide supply operating range: 3.3 V - 18 V
• PWM frequency switching selectable by I2C
•352.8 kHz, 384kHz, 411.6 kHz, 448 kHz
• 2 I2C addresses
• MOSFET power outputs
•Typ 10 W 4 Ω at 14.4 V, 1 kHz THD = 1%
•Typ 5 W 8 Ω at 14.4 V, 1 kHz THD = 1%
• Noise: 38 μV A-weighted: 20 kHz
• 8 Ω, 4 Ω driving capability
• Input amplitude limiter (configurable through I2C)
• I2C full configurability and diagnostic
•Startup diagnostic
•Input voltage amplitude limiter function (configurable through I2C)
•4 x Thermal warning
•DC diagnostic
•OCP protection scheme configurable
•Mute time configuration
• Capability to run complete diagnostic in play
•Configurable Clipping Detector
•One of the Thermal Warnings
•Over Current Protection
•Open Load detection
•High voltage mute
• 2 CD/Diag pin
• Integrated ESD and short circuit protection
• QFN32 wettable flanks
• Tested according to CISPR 25 - Class V (Fourth edition)