10 W + 10 W class-D audio amplifier demonstration board based on the TDA7491P

The STEVAL-CCA028V1 demonstration board is designed for the TDA7491P high-power dual BTL class-D audio amplifier.

Thanks to its high efficiency, the device assembled in the PSSO36 (slug-down) package is capable of dissipating heat without any heatsink.

Jumpers on the board allow configuring the amplifier in order to verify all the features as single-ended or differential inputs, fixed gain settings.

Microswitches are also provided to enable the standby and mute functions.

Key Features

  • 10 W +10 W continuous output power at THD = 10%, RL = 6 Ω, VCC = 11 V
  • 9.5 W + 9.5 W continuous output power at THD = 10%, RL = 8 Ω, VCC = 12 V
  • Wide-range single-supply operation (5-18 V)
  • High efficiency (η = 90 %)
  • Four selectable, fixed gain settings (20 dB, 26 dB, 30 dB and 32 dB)
  • Differential inputs to minimize common-mode noise
  • Filterless operation
  • Standby and mute features
  • Short-circuit and thermal overload protections
  • Externally synchronizable
  • RoHS compliant

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Design

Technical Documentation

Product Specifications
Description Version Size
DB1455 DB1455: 10 W + 10 W class-D audio amplifier demonstration board based on the TDA7491P 1.1 126 KB
Application Notes
Description Version Size
AN3412 AN3412: 10 W + 10 W dual BTL class-D audio amplifier demonstration board based on the TDA7491P 1.1 1017 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-CCA028V1 gerber files 1.0 193 KB
Bill of Materials
Description Version Size
STEVAL-CCA028V1 BOM 1.0 31 KB
Schematic Packs
Description Version Size
STEVAL-CCA028V1 schematics 1.0 43 KB

Legal

License Agreement
Description Version Size
Evaluation products license agreement 1.0 125 KB
Support & Community

Sample & Buy

Part Number Marketing Status Unit Price (US$) * Quantity Core Product ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-CCA028V1 Active 79.63 1 TDA7491P NEC EAR99 ITALY MORE INFO Buy Direct Add to cart DISTRIBUTOR AVAILABILITY
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-CCA028V1 ActiveCARDIndustrialEcopack2
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(**) 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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