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FDA903S

更新时间： 2024-09-27 14:58:23
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS /
页数 文件大小 规格书
15页 668K
描述
1 x 10 W class D digital input automotive power amplifier with diagnostics, wide voltage operation range for car audio and telematics

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FDA903S 数据手册

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FDA903S  
Data brief  
1x10 W digital input class-D automotive audio amplifier with advanced  
diagnostics, wide voltage operating range for telematics and e-Call application  
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  
QFN32 (exposed pad down)  
–
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  
Product status link  
OCP protection scheme configurable  
Mute time configuration  
FDA903S  
Product summary  
DAM (Digital-Admittance-Meter)  
•
Capability to run complete diagnostic in play  
Order code  
Package  
Packing  
–
–
–
–
–
Configurable Clipping Detector  
One of the Thermal Warnings  
Over Current Protection  
Open Load detection  
FDA903S-6DY  
FDA903S-6DT  
Tray  
QFN32  
(exp. pad  
down)  
Tape and  
reel  
High voltage mute  
•
•
•
•
•
Load current monitor  
2 CD/Diag pin  
Integrated ESD and short circuit protection  
QFN32 wettable flanks  
Tested according to CISPR 25 - Class V (Fourth edition)  
Description  
The FDA903S is the new ST single channel class-D audio amplifier, specifically  
designed for automotive applications. The FDA903S 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.  
DB4682 - Rev 3 - January 2023  
For further information contact your local STMicroelectronics sales office.  
www.st.com  
 
 
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