This is information on a product in full production. For further information contact your local STMicroelectronics sales
office.
October 2013 DocID025342 Rev 1 1/9
FDA2100LV
2 x 180 W / 1 x 300 W PWM digital input power amplifier
with built-in diagnostics features and step-up driver
Data brief - production data
Features
Integrated 105 dB D/A conversion
I
2
S & TDM digital input (3.3/1.8 V)
Input sampling frequency: 44.1kHz, 48 kHz,
96 kHz, 192 kHz
Step-up driver included
EMI control for FM/AM compatibility
Dithering possibility
Capable to operate down to 6 V (e.g."start-stop")
6 V - 35 V operating range (R
L
= 8 Ω)
Low component count output low-pass filter
Output low-pass filter included in the feedback
Low radiation function (LRF)
High output power capability
– 2 x 80 W/4 Ω @ 25 V, 1 kHz, 10 % THD
– 2 x 120 W/4 Ω @ 30 V, 1 kHz, 10 % THD
– 1 x 150 W/2 Ω @ 25 V, 1 kHz, 10 % THD
Full I
2
C bus driving (3.3/1.8 V):
–I
2
C bus digital diagnostics (including DC
and AC load detection); AC and DC
loudspeaker diagnostic
Very flexible fault detection through integrated
diagnostic
Protected against several kinds of
misconnections
Offset detector (play or mute mode)
Two independent short circuit protections
Clipping detector
C-MOS compatible enable pin (3.3/5 V)
ESD protection
Package: TQFP64 exposed pad up
Description
The FDA2100LV is a new BCD technology dual
bridge class D amplifier, specially intended for car
radio applications.
Thanks to the BCD6-SOI (Silicon On Insulation)
technology it is possible to integrate a high
performance D/A converter together with powerful
MOSFET output amplifier working in class D, to
get outstanding efficiency with respect to the
standard class AB.
The D/A conversion on board allows the
performance to reach an outstanding 110 dB S/N
ratio with 105 dB of dynamic range. The feedback
loop includes the output L-C low-pass filter,
allowing superior frequency response linearity
and lower distortion independently of the inductor
and capacitor quality.
A full diagnostics array communicates the status
of each speaker through the I
2
C bus. The
possibility to control the device by means of the
I
2
C bus makes FDA2100LV very flexible.
Thanks to the solutions implemented to solve the
EMI problems, the device can be used in the
standard single DIN car-radio box together with
the tuner.
A built-in step-up driver allows up to 150 W output
power with the standard 14 V supply voltage.
The FDA2100LV is moreover compliant to the
most recent OEM specifications for low voltage
operation (so called 'start-stop' battery profile
during engine stop), helping car manufacturers to
reduce the overall emissions and thus
contributing to environment protection.
TQFP64 (exposed pad up)
*$*36
Table 1. Device summary
Order code Package Packing
FDA2100LV
TQFP64 (e.p.u.)
Tray
FDA2100LV-T Tape & reel
www.st.com
