TDA7803A

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High efficiency digital input automotive quad power amplifier with built-in diagnostics features, start stop compatible

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  • The TDA7803A is a single chip quad bridge amplifier in advanced BCD technology integrating: a full D/A converter, digital input for direct connection to I2S (or TDM) and powerful MOSFET output stages.

    The integrated D/A converter allows the performance to reach an outstanding 115 dB S/N ratio with more than 110 dB of dynamic range.
    Moreover the TDA7803A integrates an innovative high efficiency concept, optimized also for uncorrelated music signals. The device is designed to be compatible to battery modulation for class-G systems.
    Thanks to this concept, the dissipated “output power” under average listening conditions can be reduced up to 50% when compared to the conventional class AB solutions.
    The TDA7803A integrates also a programmable PLL that is able to lock at the input frequencies of 64*Fs for all the input configurations.
    The device is equipped with a full diagnostics array that communicates the status of each speaker through the I2C bus. The same I2C bus allows to control several configurations of the device.
    The TDA7803A is able to play music down to 6 V supply voltage - so it is compatible with the so called 'start stop' battery profile recently adopted by several car makers (thus reducing the fuel consumption and the impact over the environment).

    Key Features

    • AEC-Q100 qualified
    • 24-bit digital processing
    • 115 dB dynamic range (A-weighted)
    • SB-I (SB - improved) high efficiency operation the highest ’non - class D’ efficiency
    • Parallel mode function availability
    • High output power capability:
      • 4 x 27 W 4Ω@ 14.4 V, 1 kHz, THD = 10%
      • 4 x 47 W 2 Ω @ 14.4 V, 1 kHz, THD = 10%
    • Flexible mode control:
      • Full I2C bus driving 1.8V/3.3V) with four addresses selectable (only for PowerSO36 package option)
      • Independent front/rear play/ mute
      • Selectable digital gains for very-low noise line-out function
      • Digital diagnostic with DC and AC load detections
    • Start-stop compatibility (operation down to 6V)
    • Sample rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
    • Flexible serial data port (1.8 V / 3.3 V):
      • I2S standard, TDM 4Ch, TDM 8Ch, TDM 16ch (8+8ch)
    • Offset detector
    • Independent front/rear clipping detector
    • Programmable diagnostic pin
    • CMOS compatible enable pin
    • Thermal protection
    • Pop free in mute to play transitions and viceversa

Sample & Buy

Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
TDA7803A-ZSX
Active
1000 5.8 PowerSO 36 Tube EAR99 - No availability of distributors reported, please contact our sales office
TDA7803A-8ZT
Active
1000 6.3 OUTLINE FW 27 SMD Tape And Reel EAR99 - No availability of distributors reported, please contact our sales office
TDA7803A-ZST
Active
1000 5.8 PowerSO 36 Tape And Reel EAR99 - Check Availability

Distributor availability ofTDA7803A-ZST

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 600 1 Order Now
MOUSER WORLDWIDE 410 1 Order Now
Farnell Element14 EUROPE 26 1 Order Now

Distributor reported inventory date: 2019-12-12

Distributor Name

DIGIKEY

Stock

600

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

410

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

26

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-12

Buy now
TDA7803A-48X
Active
1000 6.1 FLEXIWATT FM2 27 Tube EAR99 - No availability of distributors reported, please contact our sales office
TDA7803A-8ZX
Active
1000 6.3 OUTLINE FW 27 SMD Tube EAR99 - No availability of distributors reported, please contact our sales office

TDA7803A-ZSX

Marketing Status

Active

Quantity

1000

Unit Price (US$)

5.8*

Unit Price (US$)

5.8

Package

PowerSO 36

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

-

TDA7803A-8ZT

Marketing Status

Active

Quantity

1000

Unit Price (US$)

6.3*

Unit Price (US$)

6.3

Package

OUTLINE FW 27 SMD

Packing Type

Tape And Reel

ECCN (US)

EAR99

Country of Origin

-

TDA7803A-ZST

Marketing Status

Active

Quantity

1000

Unit Price (US$)

5.8*

Distributor availability ofTDA7803A-ZST

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 600 1 Order Now
MOUSER WORLDWIDE 410 1 Order Now
Farnell Element14 EUROPE 26 1 Order Now

Distributor reported inventory date: 2019-12-12

Distributor Name

DIGIKEY

Stock

600

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

410

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

26

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-12

Unit Price (US$)

5.8

Package

PowerSO 36

Packing Type

Tape And Reel

ECCN (US)

EAR99

Country of Origin

-

TDA7803A-48X

Marketing Status

Active

Quantity

1000

Unit Price (US$)

6.1*

Unit Price (US$)

6.1

Package

FLEXIWATT FM2 27

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

-

TDA7803A-8ZX

Marketing Status

Active

Quantity

1000

Unit Price (US$)

6.3*

Unit Price (US$)

6.3

Package

OUTLINE FW 27 SMD

Packing Type

Tube

ECCN (US)

EAR99

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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Evaluation Tools

    • Part Number

      EVAL-TDA7803A evaluation board for TDA7803A

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS12195
      High efficiency digital input automotive quad power amplifier with built-in diagnostics features, ’start stop’ compatible
      5.0
      1.24 MB
      PDF
      DS12195

      High efficiency digital input automotive quad power amplifier with built-in diagnostics features, ’start stop’ compatible

    • Description Version Size Action
      UM2376
      Evaluation boards for TDA7803A and TDA7808 power amplifiers
      1.0
      548.15 KB
      PDF
      UM2376

      Evaluation boards for TDA7803A and TDA7808 power amplifiers

Publications and Collaterals

    • Description Version Size Action
      Intelligent analog power amplifiers 1.0
      715.73 KB
      PDF

      Intelligent analog power amplifiers

    • 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**
TDA7803A-48X
Active
FLEXIWATT FM2 27 Automotive Ecopack2
TDA7803A-8ZT
Active
OUTLINE FW 27 SMD Automotive Ecopack2
TDA7803A-8ZX
Active
OUTLINE FW 27 SMD Automotive Ecopack2
TDA7803A-ZST
Active
PowerSO 36 Automotive Ecopack2
TDA7803A-ZSX
Active
PowerSO 36 Automotive Ecopack2

TDA7803A-48X

Package:

FLEXIWATT FM2 27

Material Declaration**:

PDF XML

Marketing Status

Active

Package

FLEXIWATT FM2 27

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TDA7803A-8ZT

Package:

OUTLINE FW 27 SMD

Material Declaration**:

PDF XML

Marketing Status

Active

Package

OUTLINE FW 27 SMD

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TDA7803A-8ZX

Package:

OUTLINE FW 27 SMD

Material Declaration**:

PDF XML

Marketing Status

Active

Package

OUTLINE FW 27 SMD

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TDA7803A-ZST

Package:

PowerSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TDA7803A-ZSX

Package:

PowerSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) 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.

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