FDA450LV 4 x 50 W PWM digital input power amplifier with built-in diagnostics features and low voltage operation Data brief - production data C-MOS compatible enable pin (3.3/5 V) ESD protection 6 V operation (Start - Stop) Description 0 03 TQFP100 The FDA450LV is a new BCD- SOI (silicon on (Exposed pad up) insulation) technology QUAD BRIDGE class D amplifier, specially intended for car radio applications. Features Thanks to the technology used, it is possible to Integrated 108 dB D/A conversion integrate a high performance D/A converter 2 together with powerful MOSFET outputs in class I S and TDM digital input (3.3/1.8 V) D, to get an outstanding efficiency compared with Input sampling frequency: 44.1 kHz, 48 kHz, the standard class AB. 96 kHz, 192 kHz The integrated D/A converter allows to reach MOSFET power outputs outstanding performances (110 dB S/N ratio with EMI control for FM/AM compatibility 108 dB of dynamic range). The feedback loop includes the output L-C low-pass filter, allowing EMI compliance at the CEI EN 55025 (2009- superior frequency response linearity and lower 10) distortion independently of the inductor and Dithering possibility capacitor quality. Very low external component count filter 2 FDA450LV is fully configurable through I C bus Output lowpass filter included in the feedback interface and integrates a full diagnostics array Low radiation function (LRF) specially intended for automotive applications. Max. output power Thanks to the solutions implemented to solve the 4 x 50 W/4 15.2 V, 1 kHz EMI problems, the device is conceived to be used in the standard single DIN car-radio box together High output power capability with the tuner. 28 W/4 10 % THD, Vd = 14.4 V 2 The possibility to parallelize the outputs allows to Full I C bus driving (3.3/1.8 V): drive both 2 and 1 speakers. Independent front/rear soft play/ mute 2 Moreover FDA450LV is able to work with power I C bus diagnostics (including DC and AC supply as low as 6 V, thus supporting the most load detection, test signal internally recent low voltage ( start-stop ) car-makers generated) specification. Very flexible fault detection though integrated diagnostic Table 1. Device summary Offset detector (play or mute mode) Order code Package Packing Four independent short circuit protection FDA450LV TQFP100 (exp. pad up) Tray Clipping detector September 2013 DocID025018 Rev 2 1/8 This is information on a product in full production. For further information contact your local STMicroelectronics sales www.st.com office.Contents FDA450LV Contents 1 Block diagram and pins description 3 2 Package information . 6 3 Revision history 7 2/8 DocID025018 Rev 2