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.