TDA7719 Datasheet, PDF (1/45 Pages) STMicroelectronics – 3 band car audio processor

TDA7719
3 band car audio processor
Features
■ Input multiplexer
– Multiple input configuration for different
application
■ Loudness
– 2nd order frequency response
– Programmable center frequency
– 15dB with 1dB steps
– Selectable high frequency boost
– Selectable flat-mode
■ Volume
– +15dB to -15dB with 1dB 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 15dB range with 1dB 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,
TSSOP28
■ Mute functions
– 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
TSSOP28
TDA7719TR
TSSOP28
Packing
Tube
Tape and reel
January 2008
Rev 2
1/45
www.st.com
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