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FDA803D Datasheet

1 x 45W class D digital input automotive power amplifier

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FDA803D
1 x 45 W class D digital input automotive power amplifier with diagnostics,
wide voltage operation range for car audio and telematic
Datasheet - production data
3RZHU662
([SSDGGRZQ
*$'*36
Features
AEC-Q100 qualified
Integrated 108 dB D/A conversion
I2S and TDM digital input (4/8/16CH TDM)
Input sampling frequency: 44.1 kHz, 48 kHz,
96 kHz, 192 kHz
Full I2C bus driving (3.3/1.8 V)
CISPR 25 - Class V (Fourth edition)
Very low quiescent current
Output lowpass filter included in the feedback
allowing outstanding audio performances
Wide operating supply range from 3.3 to 18 V,
suitable for car radio, telematics and e-call
MOSFET power outputs allowing high output
power capability
– 1 x 25 W /4 Ω @ 14.4 V, 1 kHz THD = 1%
– 1 x 30 W /4 Ω @ 14.4 V, 1 kHz THD = 10%
2 Ω loads driving
Power limiting function (configurable through
I2C)
I2C bus diagnostics:
– Short to VCC/GND
– Short load and open load detection (also in
play mode)
– Four thermal warnings
DC offset detector (also in play) and 'hot spot'
detection
Clipping detector
Integrated thermal protection
Legacy mode ('no I2C' mode), 4 configurable
settings
Short circuit and ESD integrated protections
Package: PowerSSO-36 exposed pad down
Table 1. Device summary
Order code
Package
Packing
FDA803D-EHT
PowerSSO-36
Tape & reel
FDA803D-EHX (exposed pad down)
Tube
May 2018
This is information on a product in full production.
DocID031487 Rev 2
1/78
www.st.com


STMicroelectronics Electronic Components Datasheet

FDA803D Datasheet

1 x 45W class D digital input automotive power amplifier

No Preview Available !

Contents
Contents
FDA803D
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4 Typical curves of the main electrical parameters . . . . . . . . . . . . . . . . . . . 17
6 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1 LC filter design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.2 Load possibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7 Finite state machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1 Device state and address selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.2 Standby state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.3 Diagnostic Vcc-Gnd state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.4 ECO-mode state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.5 MUTE-PLAY and diagnostic states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.6 Operation compatibility vs battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8 Muting function architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.1 Command dependence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2 Analog-Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.3 Digital-Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.4 Mixed mute advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9 Hardware mute pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10 Power limiter function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2/78 DocID031487 Rev 2


Part Number FDA803D
Description 1 x 45W class D digital input automotive power amplifier
Maker STMicroelectronics
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FDA803D Datasheet PDF






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