TDA7719
3 band car audio processor
Features
■ Input multiplexer
– Multiple input configuration for different
application
■ Loudness
– 2nd order frequency response
– Programmable center frequency
– 15 dB with 1 dB steps
– Selectable high frequency boost
– Selectable flat-mode
■ Volume
– +15 dB to -15 dB with 1 dB step resolution
– Soft-step control with programmable blend
times
■ Bass
– 2nd order frequency response
– Center frequency programmable in 4 steps
– Q programmable 1.0/1.25/1.5/2.0
– DC gain programmable
– -15 to 15 dB range with 1 dB resolution
■ Middle
– 2nd order frequency response
– Center frequency programmable in 4 steps
– Q programmable 0.5/0.75/1.0/1.25
– -15 to 15dB range with 1dB resolution
■ Treble
– 2nd order frequency response
– Center frequency programmable in 4 steps
– -15 to 15dB range with 1dB resolution
■ Speaker
– 4 independent soft step speaker controls
– 0dB to -79dB with 1dB steps
– Direct mute
■ Subwoofer
– 2nd order low pass filter with programmable
cut off frequency
– 2 independent soft step level control,
■ Mute functions
TSSOP28
– Direct mute
– Digitally controlled SoftMute with 4
programmable mute-times
■ Offset detection
– Offset voltage detection circuit for on-board
power amplifier failure diagnosis
■ Level meter
– Provide rectified level voltage of main
source signal (before loudness)
■ Rear seat selector
– Full source selector for rear seat output
■ Mixing selector
Description
The TDA7719 is a high performance signal
processor specifically designed for car radio
applications. The device includes a high
performance audioprocessor with fully integrated
audio filters and new Soft Step architecture. The
digital control allows programming in a wide range
of filter characteristics. By the use of BCMOS-
process and liner signal processing low distortion
and low noise are obtained.
Table 1. Device summary
Order code
Package
TDA7719
TDA7719TR
TSSOP28
TSSOP28
Packing
Tube
Tape and reel
September 2013
Doc ID 13698 Rev 5
1/46
www.st.com
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