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STMicroelectronics - Digital input quad power amplifier

Numéro de référence TDA7801SM
Description Digital input quad power amplifier
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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TDA7801SM fiche technique
TDA7801
Digital input quad power amplifier with built-in diagnostics features
Datasheet - production data
Two I2C bus addresses and 8-ch TDM mode
(only in PowerSO package)
Optional non I2C bus mode
'!0'03
PowerSO36
(slug-up)
'!0'03
Flexiwatt27
(horizontal)
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
'!0'03
Flexiwatt27
(vertical)
'!0'03
Flexiwatt27
(SMD)
Linear thermal protection (four thermal
warnings)
ESD protection
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 @
14.4 V, 1 kHz, 10 % THD
Max. output power 4x72 W/2
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)
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
Package
Packing
TDA7801PD
TDA7801PDTR
TDA7801
TDA7801H
TDA7801SM
PowerSO36 (slug-up)
PowerSO36 (slug-up)
Flexiwatt27 (vertical)
Flexiwatt27 (horizontal)
Flexiwatt27 (SMD)
Tube
Tape and reel
Tube
Tube
Tube
September 2013
This is information on a product in full production.
DocID022674 Rev 4
1/48
www.st.com
1

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