FDA803U
FDA803U is 1 x 45W class-D digital input automotive power amplifier manufactured by STMicroelectronics.
Features
- AEC-Q100 qualified
- Integrated 108 d B D/A conversion
- I2S and TDM digital input (4/8/16CH TDM)
- Input sampling frequency: 44.1 k Hz, 48 k Hz,
96 k Hz, 192 k Hz
- Full I2C bus driving (3.3/1.8 V)
- CISPR 25
- Class V (Fourth edition)
- Very low quiescent current
- Output lowpass filter included in the feedback allowing outstanding audio performances
- Wide operating supply range from 3.3 to 18 V, suitable for car radio, telematics and e-call
- MOSFET power outputs allowing high output power capability
- 1 x 25 W /4 Ω @ 14.4 V, 1 k Hz THD = 1%
- 1 x 30 W /4 Ω @ 14.4 V, 1 k Hz THD = 10%
- 2 Ω loads driving
- Power limiting function (configurable through I2C)
- I2C bus diagnostics:
- Short to VCC/GND
- Short load and open load detection (also in play mode)
- Four thermal warnings
- DC offset detector (also in play) and 'hot spot' detection
- Clipping detector
- Integrated thermal protection
- Legacy mode ('no I2C' mode), 4 configurable settings
- Short circuit and ESD integrated protections
- Package: Power SSO-36 exposed pad up
Description
The FDA803U is a single bridge class D amplifier, designed in the most advanced BCD technology, intended for any automotive audio application (car radio, telematics and e-call, noise and tone generators, etc).
The FDA803U integrates a high performance D/A converter together with powerful MOSFET outputs in class D, so it is very pact and powerful, moreover it reaches outstanding efficiency performances (90%).
It has a very wide operating range: it can be operated both with standard car battery levels (5.5-18 V operating, patible to load dump pulse) and with external step-down generated voltages or emergency battery (since it is patible to minimum 3.3 V operative).
The feedback loop includes the output L-C lowpass filter, allowing superior frequency response linearity and lower distortion.
FDA803U is configurable through I2C bus interface and integrates a plete diagnostics array specially intended for automotive applications...