TDA7803A-ZST Automotive Audio Power Amplifiers by STMicroelectronics

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

Status: Active
Series: TDA7803A
RoHS: Compliant
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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 I 2 S (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 I 2 C bus. The same I 2 C 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).

Prices starting from US$6.63


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$8.68
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Logo for Avnet America Avnet America US$6.63
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Logo for element14 element14 US$8.48
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Logo for EBV Elektronik EBV Elektronik -
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Logo for Avnet Silica Avnet Silica -
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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 4 Ω @ 14.4 V, 1 kHz, THD = 10% 4 x 47 W 2 Ω @ 14.4 V, 1 kHz, THD = 10%
4 x 27 W 4 Ω @ 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
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)
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

Alternative Descriptions

Audio Power Amp, Ab, -40 To 105Deg C | Newark Electronics
Audio Amp Speaker 4-CH Stereo 72W Class-AB 36-Pin PowerSO T/R | Avnet America
AUDIO POWER AMP, AB, -40 TO 105DEG C | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a TDA7803A-ZST?

Additional datasheets, footprints and schematics for TDA7803A-ZST are listed on our Part Details page. You can also find images and similar parts to TDA7803A-ZST on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for TDA7803A-ZST on our Product Comparison page. Access via the 'View Pricing & Stock' button to view TDA7803A-ZST price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does TDA7803A-ZST fall under?

The TDA7803A-ZST is listed under Automotive Infotainment and Telematics > Automotive Audio Power Amplifiers > Automotive Class-AB Audio Power Amplifiers.

Can I view similar or alternative parts?

You can view similar parts to TDA7803A-ZST when available in the Automotive Class-AB Audio Power Amplifiers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the TDA7803A-ZST you can contact the distributor directly for product support, shipping queries etc.

Is the TDA7803A-ZST RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for TDA7803A-ZST have stock available?

Authorised distributors including Newark Electronics, Avnet America, element14, Farnell and EBV Elektronik have stock available or on a lead time for TDA7803A-ZST.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for TDA7803A-ZST often in real-time on the comparison pages.

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