Product Details
Product Description
Product Description
explain
FDA801 is a new BCD technology four bridge D-stage amplifier specifically designed for automotive applications.
Due to the technology used, high-performance D/A converters can be integrated with powerful MOSFET outputs to achieve outstanding efficiency compared to standard AB classes.
The integrated D/A converter can achieve excellent performance (110 dB S/N ratio, 108 dB dynamic range). The feedback loop includes an output L-C low-pass filter, allowing for superior frequency response linearity and lower distortion independent of inductor and capacitor quality.
The FDA801 is fully configurable through the I2C bus interface and integrates a complete diagnostic array specifically designed for automotive applications. Due to the implementation of a solution to control electromagnetic interference emissions, this device will be used in conjunction with a tuner for a standard single DIN car radio box.
In addition, the FDA801 can use a power supply as low as 6V, thereby supporting the latest specifications of low-voltage ("start stop") car manufacturers.
Features
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, 192 kHz
Class-D channels with 93% efficiency
EMI control for AM compatibility
EMI compliance evaluated following normative
IEC61967-4 and IEC62132-4
Low radiation function (LRF)
Idle tones free DAC
Output lowpass filter included in the feedback
allowing lower cost filter components
Max. output power
– 4 x 50 W/4 Ω @ 15.2 V, 1 kHz
High output power capability
– 28 W/4 Ω 10 % THD, Vd = 14.4 V
Full I2C bus driving (3.3/1.8 V):
– Channels independent tristate
– Channel independent soft play/mute
– I2C bus diagnostics, including DC and AC
load detection
Integrated fault protection
Input and output offset detector
Clipping detector
ESD protection
6 V operation (“Start - Stop” engines
compatibility)
2 and 1 Ω load driving capability
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