Features  Integrated 110 dB D/A conversion  I 2S 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 Description FDA801 is a new BCD technology quad BRIDGE class D amplifier, specially intended for automotive applications. Thanks to the technology used, it is possible to integrate 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). 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. FDA801 is fully configurable through I2C bus interface and integrates a full diagnostics array specially intended for automotive applications. Thanks to the solutions implemented to contain EMI emissions, the device is intended to be used in the standard single DIN car-radio box together with the tuner. Moreover FDA801 is able to work with power supply as low as 6 V, thus supporting the most recent low voltage ('start-stop') car-makers specification. *$*36 LQFP64 (exposed pad up) Table 1. Device summary Order code Package Packing FDA801-VYY LQFP64 (exp. pad up) Tray FDA801-VYT LQFP64 (exp. pad up) Tape & Reel