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FDA803U Datasheet(PDF) 1 Page - STMicroelectronics |
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FDA803U Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 76 page  This is information on a product in full production. July 2019 DS12497 Rev 2 1/76 FDA803U 1 x 45 W class D digital input automotive power amplifier with diagnostics, wide voltage operation range for car audio and telematic Datasheet - production data Features AEC-Q100 qualified Integrated 108 dB D/A conversion I2S and TDM digital input (4/8/16CH TDM) Input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz 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 kHz THD = 1% – 1 x 30 W /4 Ω @ 14.4 V, 1 kHz 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: PowerSSO-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 compact 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, compatible to load dump pulse) and with external step-down generated voltages or emergency battery (since it is compatible to minimum 3.3 V operative). The feedback loop includes the output L-C low- pass filter, allowing superior frequency response linearity and lower distortion. FDA803U is configurable through I2C bus interface and integrates a complete diagnostics array specially intended for automotive applications including innovative open load and DC offset detection in play mode. Thanks to the solutions implemented to solve the EMI problems, the device is intended to be used in the standard single DIN car-radio box together with the tuner. Moreover FDA803U features a configurable power limiting function, and can be optionally operated under no I2C mode ('legacy mode'). Table 1. Device summary Order code Package Packing FDA803U-KBT PowerSSO-36 (Slug-up) Tape & reel FDA803U-KBX Tube www.st.com |
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