FDA803D

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产品概述

描述

The FDA803D 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 FDA803D integrates a high performance D/A converter together with powerful MOSFET outputs in class D, so it is very compact and powerful, moreover 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 is including the output L-C low-pass filter, allowing superior frequency response linearity and lower distortion.

FDA803D is configurable through I²C bus interface and is integrating 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 FDA803D features a configurable power limiting function, and can be optionally operated under no I²C mode ('legacy mode').

所有功能
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 V_CC/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 down
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