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E-TDA7437NTR View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
E-TDA7437NTR Digitally controlled audio processor ST-Microelectronics
STMicroelectronics ST-Microelectronics
E-TDA7437NTR Datasheet PDF : 34 Pages
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TDA7437N
Digitally controlled audio processor
Features
Input multiplexer
– Four stereo, one mono input, and one
differential input
– Selectable input gain for optimal adaptation
to different sources
Fully programmable loudness function
Volume control in 1dB steps including gain up
to 16dB
Zero crossing mute, soft mute and direct mute
Bass and treble control
Four speaker attenuators- four independent
speakers control in 1dB steps for balance and
fader facilities
Pause detector programmable threshold
All functions programmable via serial I2C bus
Description
The audioprocessor TDA7437N is an upgrade of
the TDA731X audioprocessor family.
Due to a highly linear signal processing, using
CMOS-switching techniques instead of standard
bipolar multipliers, very low distortion and very
LQFP44
low noise are obtained. Several new features like
softmute, and zero-crossing mute are
implemented. The soft Mute function can be
activated in two ways either via the serial bus
(Mute byte, bit D0), or directly on pin 28 through
an I/O line of the microcontroller
Very low DC stepping is obtained by use of a
BICMOS technology.
Order codes
Part numbers
E-TDA7437N
E-TDA7437NTR
Package
LQFP44 (10x 10x 1.4mm)
LQFP44 (10x 10x 1.4mm)
Packing
Tray
Tape and reel
December 2006
Rev 2
1/34
www.st.com
1
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