TDA7801:Digital input (I2S), quad BTL output power amplifier with full I2C diagnostics

The TDA7801 is a new BCD technology quad bridge amplifier for car audio applications.

Thanks to the BCD6 technology it is possible to integrate a high performance D/A converter together with powerful MOSFET outputs.

The possibility of having the D/A conversion on board allows the performance to reach an outstanding 115 dB S/N ratio with more than 105 dB of dynamic range.

This device is equipped with a full diagnostics array that communicates the status of each speaker through the I2C bus. The possibility to control the configuration and behavior of the device by means of the I2C bus makes TDA7801 a very flexible machine.

Key Features

  • Integrated 110 dB D/A conversion
  • I2 S digital input (3.3/1.8 V) with TDM option
  • Selectable input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
  • MOSFET power outputs
  • High output power capability 4x28 W/ 4 Ω @ 14.4 V, 1 kHz, 10 % THD
  • Max. output power 4x72 W/2 Ω
  • Full I2 C bus driving (3.3/5 V):
    • Independent front/rear soft play/ mute
    • Selectable gain (four levels) for very low noise line-out function
    • I2 C bus digital diagnostics (including DC and AC load detection)
  • Two I2 C bus addresses and 8-ch TDM mode (only in PowerSO package)
  • Optional non I2 C bus mode
  • Offset detector (play or mute mode)
  • Clipping detector (selectable level) and diagnostics pin
  • CMOS compatible enable pin (3.3/5 V)
  • Full fault protection
  • Four independent short circuit protections
  • Linear thermal protection (four thermal warnings)
  • ESD protection
Product Specifications
DescriptionVersionSize
DS8838: Digital input quad power amplifier with built-in diagnostics features4.11 MB
Flyers
DescriptionVersionSize
Intelligent analog power amplifiers837 KB
TDA7801: Digital-input car-audio power amplifier2.1197 KB
Selection Guides
DescriptionVersionSize
Power amplifiers and voltage regulators750 KB
Sample & Buy
Part NumberQuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
TDA7801PD10007.16PowerSO 36Tube--NECEAR99MALAYSIA
TDA7801SMTR--OUTLINE FW 27 SMDTape And Reel--NECEAR99-
TDA7801PDTR10007.16PowerSO 36Tape And Reel--NECEAR99MALAYSIA
TDA780110008.09FLEXIWATT FM2 27Tube--NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
TDA7801PDPowerSO 36AutomotiveEcopack2
TDA7801SMTROUTLINE FW 27 SMDAutomotiveEcopack2
TDA7801PDTRPowerSO 36AutomotiveEcopack2ipc1752_a6zs-um61bc1.pdf
TDA7801FLEXIWATT FM2 27AutomotiveEcopack2new_ipc-wspc-1752a_h548-um61bev_signed.pdf
Digital input quad power amplifier with built-in diagnostics features TDA7801
circuit_diagram_15022_thumbnail.png TDA7801
4 x 45 W power amplifier with full I2C diagnostics, SSR and low voltage operation TDA75616LV
Digital input quad power amplifier with built-in diagnostics features TDA7801
ST SPI protocol L99PM72PXP
ipc1752_a6zs-um61bc1.pdf TDA7801
new_ipc-wspc-1752a_h548-um61bev_signed.pdf TDA7801