FDA Datasheet, PDF (1/2 Pages) STMicroelectronics – Automotive fully-digital

FDA series
Automotive fully-digital
audio amplifiers
ST has launched a complete
family of PWM digital-input power
amplifiers to offer new ways of
thinking about audio power
amplification in automotive
applications.
ST’s environment-friendly
approach translates into class D
efficiency, start-stop compliancy
and a new feedback concept
that significantly 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 amplifiers
for new generation head units
and boosters.
Key features
• Class D efficiency
• I²S or TDM digital input
• Very high output power capability
• Integrated D/A converter
• Automotive-grade EMI/EMC
performances
• Low-pass output filter 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 filters
• 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 filter
Targeted applications
• Head units
• Boosters
• Infotainment systems
www.st.com/car-radio