FDA801 2 4 x 50 W class-D digital input power amplifier with I C diagnostics and low voltage operation Data brief ESD protection 6 V operation (Start - Stop engines compatibility) 2 and 1 load driving capability Description * *36 LQFP64 (exposed pad up) 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 Features together with powerful MOSFET outputs in class D, to get an outstanding efficiency Integrated 110 dB D/A conversion compared with the standard class AB. 2 I S and TDM digital input (3.3/1.8 V) The integrated D/A converter allows to reach Input sampling frequency: 44.1 kHz, 48 kHz, outstanding performances (110 dB S/N ratio with 96 kHz, 192 kHz 108 dB of dynamic range). The feedback loop Class-D channels with 93% efficiency includes the output L-C low-pass filter, allowing EMI control for AM compatibility superior frequency response linearity and lower distortion independently from the inductor and EMI compliance evaluated following normative capacitor quality. IEC61967-4 and IEC62132-4 2 FDA801 is fully configurable through I C bus Low radiation function (LRF) interface and integrates a full diagnostics array Idle tones free DAC specially intended for automotive applications. Output lowpass filter included in the feedback Thanks to the solutions implemented to contain allowing lower cost filter components EMI emissions, the device is intended to be used in the standard single DIN car-radio box together Max. output power with the tuner. 4 x 50 W/4 15.2 V, 1 kHz Moreover FDA801 is able to work with power High output power capability supply as low as 6 V, thus supporting the most 28 W/4 10 % THD, Vd = 14.4 V recent low voltage ( start-stop ) car-makers 2 Full I C bus driving (3.3/1.8 V): specification. Channels independent tristate Table 1. Device summary Channel independent soft play/mute 2 I C bus diagnostics, including DC and AC Order code Package Packing load detection FDA801-VYY LQFP64 (exp. pad up) Tray Integrated fault protection FDA801-VYT LQFP64 (exp. pad up) Tape & Reel Input and output offset detector Clipping detector November 2015 DocID028631 Rev 1 1/11 For further information contact your local STMicroelectronics sales office. www.st.comContents FDA801 Contents 1 Block diagram and pins description 3 2 General introduction . 7 3 Package information . 8 3.1 LQFP64 (10x10x1.4 mm exp. pad up) package information . 8 4 Revision history . 10 2/11 DocID028631 Rev 1