Product overview
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.
The FDA903S supports I2S and TDM digital bit stream up to 16CH with several sampling frequencies from 8 kHz up to 96 kHz. FDA903S embeds a complete diagnostic in play, including real-time load-current monitoring and digital admittance meter, to support the most demanding OEM requirements in terms of speaker control and system robustness/ reliability.
The FDA903S supports start stop cranking down to 3.3 V and it is available in a very compact and thin QFN 5x5 package. Thus the FDA903S is suitable for any level of automotive application especially e-Call and Telematics.
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All 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
- DAM (Digital-Admittance-Meter)
- Capability to run complete diagnostic in play
- Configurable Clipping Detector
- One of the Thermal Warnings
- Over Current Protection
- Open Load detection
- 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)
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - FDA903S
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| FDA903S-6DT | Active | QFN-32L WF | Automotive | Ecopack2 | |
| FDA903S-6DY | Active | QFN-32L WF | Automotive | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| FDA903S-6DY | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| FDA903S-6DT | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
FDA903S-6DY Active
FDA903S-6DT Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors