FDA series automotive fully-digital audio amplifers www.st.com/car-radio st has launched a complete family of pwm digital-input power amplifers to offer new ways of thinking about audio power amplifcation in automotive applications. sts environment-friendly approach translates into class d effciency, start-stop compliancy and a new feedback concept that signifcantly reduces the cost and size of external components and grants outstanding emi performances. cool, very powerful and with very low radiated emissions, the FDA series are the perfect amplifers for new generation head units and boosters. key features ? class d effciency ? i2s or tdm digital input ? very high output power capability ? integrated d/a converter ? automotive-grade emi/emc performances ? low-pass output flter included in the feedback loop ? 6 v operation ? i2c diagnostics ? full fault protection ? integrated step-up driver (FDA4100lv and FDA2100lv) key benefits ? high noise-injection immunity (for example, to gsm) thanks to the digital input ? no need for digital-to-analog converter and input flters ? very low power dissipation ? no need for external solutions to play music during cranks with start-stop engines ? the innovative feedback loop avoids the use of complicated external networks to reduce radiated emissions and allows the use of a very low cost and small size output flter t argeted applications ? head units ? boosters ? infotainment systems
block diagram t echnical material device summary datasheets, demonstration boards, support documentation and software are available on request. for further information please contact st sales offces at www.st.com/salesoffces p art number maximum output power description FDA 4100 lv 4 x 135 w or 2 x 270 w pwm digital-input power amplifer with built-in diagnostics and step-up driver FDA 450 lv 4 x 50 w pwm digital-input power amplifer with built-in diagnostics features FDA 2100 lv 2 x 180w or 1 x 300w pwm digital-input power amplifer with built-in diagnostics and step-up driver * st is completing the class d digital-input portfolio with an upcoming 2-channel power amplifer i 2 s a n d t d m d i g i t a l i n p u t 6 v o p e r a t i o n , s t a r t-stop full self-d i a g n o s t i c s e n g i n e i n t e g r a t e d s t e p-u p c o n v e r t e r m o s f e t p o w e r o u t p u t low-p a s s o u t p u t f i l t e r i n c l u d e d i n feedback f e e d b a c k o u t p u t filter o u t p u t filter o u t p u t filter o u t p u t filter i n t e g r a t e d d a c a n d p o w e r s t a g e digital input pwm output ? stmicroelectronics - september 2013 - printed in united kingdom - all rights reserved the stmicroelectronics corporate logo is a registered trademark of the stmicroelectronics group of companies thunderbolt is a trademark of intel corporation in the u.s. and/or other countries. all other names are the property of their respective owners or more information on st products and solutions visit www.st.com rder code amp013
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