TDA7801 Datasheet, PDF (1/8 Pages) STMicroelectronics – Digital input quad power amplifier with built-in diagnostics features

TDA7801
Digital input quad power amplifier with built-in diagnostics features
Data Brief
Features
■ Integrated 110 dB D/A conversion
■ I²S 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 I²C bus driving (3.3/5 V):
– Independent front/rear soft play/ mute
– Selectable gain (four levels) for very low
noise line-out function
– I²C bus digital diagnostics (including DC
and AC load detection)
■ Two I²C bus addresses and 8-ch TDM mode
(only in PowerSO package)
■ Optional non I²C bus mode
■ Offset detector (play or mute mode)
■ Clipping detector (selectable level and
independent front/rear) and diagnostics pin
■ CMOS compatible enable pin (3.3/5 V)
■ Full fault protection
■ Four independent short circuit protections
■ Thermal protection (four levels)
■ ESD protection
PowerSO36
(slug-up)
Flexiwatt27
(horizontal)
Flexiwatt27
(vertical)
Flexiwatt27
(SMD)
Description
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.
Table 1. Device summary
Order code
TDA7801PD
TDA7801
TDA7801H
TDA7801SM
Package
PowerSO36 (slug-up)
Flexiwatt27 (vertical)
Flexiwatt27 (horizontal)
Flexiwatt27 (SMD)
Packing
Tube
Tube
Tube
Tube
September 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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