FDA801B

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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

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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

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
FDA801B-VYY No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tray LQFP -40 105 MALAYSIA 7.9 / 1k
FDA801B-VYT No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel LQFP -40 105 MALAYSIA 7.9 / 1k
FDA801SB No availability of distributors reported, please contact our sales office
Proposal
- - - LQFP 64 10x10x1.4 -40 105 -

FDA801B-VYY

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

7.9 / 1k

ECCN (EU)

NEC

Packing Type

Tray

Package

LQFP

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

7.9 / 1k

Country of Origin

MALAYSIA

FDA801B-VYT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

7.9 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

LQFP

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

7.9 / 1k

Country of Origin

MALAYSIA

FDA801SB

Marketing Status

Proposal

ECCN (US)

-

Budgetary Price (US$)*/Qty

ECCN (EU)

-

Packing Type

-

Package

LQFP 64 10x10x1.4

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

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