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STMicroelectronics Electronic Components Datasheet

TDA7719 Datasheet

3 band car audio processor

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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
1


STMicroelectronics Electronic Components Datasheet

TDA7719 Datasheet

3 band car audio processor

No Preview Available !

Contents
Contents
TDA7719
1 Block circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.1 Front and rear selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.2 Direct path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3 Loudness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3.1 Loudness attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3.2 Peak frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3.3 High frequency boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.4 Flat mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.4 SoftMute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.5 Softstep volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6 Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6.1 Bass attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6.2 Bass center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6.3 Bass quality factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.6.4 DC mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.7 Middle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.7.1 Middle attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.7.2 Middle center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.7.3 Middle quality factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.8 Treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/46 Doc ID 13698 Rev 5


Part Number TDA7719
Description 3 band car audio processor
Maker STMicroelectronics
Total Page 30 Pages
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