LQFP64 (exposed pad up)

GAPGPS01631

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.

Product status link

FDA802S

Device summary

Order code

Package

Packing

FDA802S-VYY

LQFP64

(exposed

pad up)

Tray

FDA802S-VYT

Tape &

Reel

2 channels class-D digital input automotive power amplifier with I2C diagnostics

and low voltage operation for car radio applications

FDA802S

Data brief

DB4552 - Rev 1 - August 2021

For further information contact your local STMicroelectronics sales office.

www.st.com