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TDA7718B Datasheet, PDF (1/40 Pages) STMicroelectronics – 3 band car audio processor | |||
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TDA7718B
3 band car audio processor
*$3*36
TSSOP28
Features
ï· Input multiplexer
â QD1: quasi-differential stereo inputs
â SE1: stereo single-ended input
â SE2: stereo single-ended input
â SE3: stereo single-ended input
â FD full-differential or quasi-differential input
ï· Loudness
â 2nd order frequency response
â Programmable center frequency
(400 Hz / 800 Hz / 2400 Hz)
â 15 dB with 1 dB steps
â Selectable high frequency boost
â Selectable flat-mode (constant attenuation)
ï· Volume
â +23 dB to -31 dB with 1 dB step resolution
â Soft-step control with programmable blend
times
ï· Bass
â 2nd order frequency response
â Center frequency programmable in 4 steps
(60 Hz / 80 Hz / 100 Hz / 200 Hz)
â Q programmable 1.0/1.25/1.5/2.0
â DC gain programmable
â -15 dB to 15 dB range with 1 dB resolution
ï· Middle
â 2nd order frequency response
â Center frequency programmable in 4 steps
(500 Hz / 1 kHz / 1.5 kHz / 2.5 kHz)
â Q programmable 0.75/1.0/1.25
â -15 dB to 15 dB range with 1 dB resolution
Datasheet - production data
ï· Treble
â 2nd order frequency response
(10 kHz / 12.5 kHz / 15 kHz / 17.5 kHz)
â Center frequency programmable in 4 steps
(10 kHz / 12.5 kHz / 15 kHz / 17.5 kHz)
â -15 dB to 15 dB with 1 dB resolution
ï· Speaker
â 4 independent soft-step speaker controls
â +15 dB to -79 dB with 1 dB steps
â Direct mute
ï· Subwoofer
â 2nd order low pass filter with programmable
cut off frequency (55 Hz / 85 Hz / 120 Hz /
160 Hz)
â 2 independent soft-step level control,
+15 dB to â79 dB with 1 dB steps
ï· Mute functions
â Direct mute
â Digitally controlled soft-mute with 4
programmable mute-times
(0.48 ms/0.96 ms/8 ms/16 ms)
ï· Offset detection
â Offset voltage detection circuit for on-board
power amplifier failure diagnosis
Description
The TDA7718B 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.
Table 1. Device summary
Order code
Package
Packing
TDA7718B
TSSOP28
Tube
TDA7718BTR
TSSOP28
Tape and reel
September 2013
This is information on a product in full production.
DocID18305 Rev 3
1/40
www.st.com
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