FDA802S-VYT中文资料意法半导体数据手册PDF规格书

Features

• AEC-Q100 qualified

• Integrated 110 dB D/A conversion

• I2S and TDM digital input (3.3/1.8 V)

• Input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz and 192 kHz

• Full I2C bus driving (3.3/1.8 V) with 8 different I2C bus addresses

• Operating supply range: 5.5 V - 25 V

• EMI compliance evaluated following normative:

– CISPR25 Class V

– ISO 11452 2

• Low radiation function (LRF)

• Very low quiescent current

• Output lowpass filter is included in the feedback for outstanding audio

performance

• Operation under standard car battery with high output power:

– 2 x 22 W /4 Ω @ 14 V, 1 kHz THD = 1

– 2 x 28 W /4 Ω @ 14 V, 1 kHz THD = 10

– 2 x 37 W /2 Ω @ 14 V, 1 kHz THD = 1

– 2 x 46 W /2 Ω @ 14 V, 1 kHz THD = 10

• Possibility to drive 2 Ω loads (up to 18 V)

• Parallel mode for 1 Ω loads (up to 18 V)

• I2C bus diagnostics:

– Short to VCC/GND diagnostic

– DC load diagnostic

– AC load diagnostic (working both with internally and externally generated

tone)

• Integrated fault protection

• Input and output offset detector

• Clipping detector

• Short circuit and ESD integrated protections

Description

The FDA802S is a dual bridge class D amplifier, designed in the most advanced BCD

technology specially intended for car radio applications.The FDA802S integrates a

high performance D/A converter together with powerful MOSFET outputs in class D,

to get an outstanding efficiency compared with the standard class AB.

The integrated D/A converter allows to reach outstanding performances (110 dB S/N

ratio with 108 dB of dynamic range). Thanks to the high-voltage MOSFET output

stages it can operate both under standard car battery (6-18 V) and under boosted

power supply (up to 25 V) to reach the highest possible power with integrated

solution. The feedback loop includes the output L-C low-pass filter, allowing superior

frequency response linearity and lower distortion independently from the inductor and

capacitor quality.