4x50 W class-D digital input power amplifier with I2C diagnostics, Digital Impedance Meter and low voltage operation

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  • FDA801B is a new BCD technology quad BRIDGE class D amplifier, specially intended for automotive applications.

    Thanks to the technology used, it is possible to integrate a high performance D/A converter together with powerful MOSFET outputs in class D, to get an outstanding efficiency compared with the standard class AB.
    The integrated D/A converter allows to reach outstanding performances (110 dB S/N ratio with 108 dB of dynamic range). The feedback loop includes the output L-C low-pass filter, allowing superior frequency response linearity and lower distortion independently from the inductor and capacitor quality.
    FDA801B is fully configurable through I2C bus interface and integrates a full diagnostics array specially intended for automotive applications. Thanks to the solutions implemented to contain EMI emissions, the device is intended to be used in the standard single DIN car-radio box together with the tuner.
    Moreover FDA801B is able to work with power supply as low as 6 V, thus supporting the most recent low voltage ('start-stop') car-makers specification.

    Key Features

    • Integrated 110 dB D/A conversion
    • I2S and TDM digital input (3.3/1.8 V)
    • Input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
    • Class-D channels with 93% efficiency
    • EMI control for AM compatibility
    • EMI compliance evaluated following normative IEC61967-4 and IEC62132-4
    • Low radiation function (LRF)
    • Idle tones free DAC
    • Output lowpass filter included in the feedback allowing lower cost filter components
    • Max. output power
      • 4 x 50 W/4 Ω @ 15.2 V, 1 kHz
    • High output power capability
      • 28 W/4 Ω 10 % THD, Vd = 14.4 V
    • Full I2C bus driving (3.3/1.8 V):
      • Channels independent tristate
      • Channel independent soft play/mute
      • I2C bus diagnostics , including DC and AC load detection and load value recognition (DIM)
    • Integrated fault protection
    • Input and output offset detector
    • Clipping detector
    • ESD protection
    • 6 V operation (“Start - Stop” engines compatibility)
    • 2 and 1 Ω load driving capability

Sample & Buy

Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
FDA801B-VYY
Active
1000 8.7 LQFP Tray EAR99 MALAYSIA No availability of distributors reported, please contact our sales office
FDA801B-VYT
Active
1000 8.7 LQFP Tape And Reel EAR99 MALAYSIA No availability of distributors reported, please contact our sales office
FDA801SB
Proposal
- - LQFP 64 10x10x1.4 - - - No availability of distributors reported, please contact our sales office

FDA801B-VYY

Marketing Status

Active

Quantity

1000

Unit Price (US$)

8.7*

Unit Price (US$)

8.7

Package

LQFP

Packing Type

Tray

ECCN (US)

EAR99

Country of Origin

MALAYSIA

FDA801B-VYT

Marketing Status

Active

Quantity

1000

Unit Price (US$)

8.7*

Unit Price (US$)

8.7

Package

LQFP

Packing Type

Tape And Reel

ECCN (US)

EAR99

Country of Origin

MALAYSIA

FDA801SB

Marketing Status

Proposal

Quantity

-

Unit Price (US$)

*

Unit Price (US$)

-

Package

LQFP 64 10x10x1.4

Packing Type

-

ECCN (US)

-

Country of Origin

-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Technical Documentation

    • Description Version Size Action
      DB2749
      4 x 50 W class-D digital input power amplifier with I2C diagnostics, digital impedance meter (DIM) and low voltage operation
      1.0
      244.77 KB
      PDF
      DB2749

      4 x 50 W class-D digital input power amplifier with I2C diagnostics, digital impedance meter (DIM) and low voltage operation

Publications and Collaterals

    • Description Version Size Action
      FDA Family – Full digital audio amplifiers for car infotainment systems 1.0
      911.83 KB
      PDF
      FDA801 and FDA801B Full digital audio amplifiers for car infotainment systems 1.0
      1.33 MB
      PDF

      FDA Family – Full digital audio amplifiers for car infotainment systems

      FDA801 and FDA801B Full digital audio amplifiers for car infotainment systems

    • Description Version Size Action
      Power amplifiers and voltage regulators
      750.29 KB
      PDF

      Power amplifiers and voltage regulators

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
FDA801B-VYT
Active
LQFP Automotive Ecopack2
FDA801B-VYY
Active
LQFP Automotive Ecopack2
FDA801SB
Proposal
LQFP 64 10x10x1.4 Industrial -

FDA801B-VYT

Package:

LQFP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP

Grade

Automotive

RoHS Compliance Grade

Ecopack2

FDA801B-VYY

Package:

LQFP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP

Grade

Automotive

RoHS Compliance Grade

Ecopack2

FDA801SB

Package:

LQFP 64 10x10x1.4

Material Declaration**:

Marketing Status

Proposal

Package

LQFP 64 10x10x1.4

Grade

Industrial

RoHS Compliance Grade

-

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.