1

Тема: TDA7721 - 5 band car audio processor

Features
 Input multiplexer
– QD1 to QD2: quasi-differential stereo input
– SE1 to SE3: stereo single-ended input
 InGain
– 6 dB with 1 dB steps
 Loudness
– 2nd order frequency response
– Programmable center frequency
(400 Hz / 800 Hz / 2400 Hz)
– 15 dB with 1 dB steps
– Selectable high frequency boost
– Selectable flat-mode (constant attenuation)
 Volume
– +23 dB to -79 dB with 1 dB step resolution
– SoftStep control with programmable blend
times
 EQ1
– 2nd order frequency response
– Center frequency programmable in 4 steps
(63 Hz / 80 Hz/ 100 Hz /125 Hz)
– Q programmable in 4 steps
(1.0/1.25/1.5/2.0)
– -15 to 15 dB range with 1 dB resolution
 EQ2
– 2nd order frequency response
– Center frequency programmable in 4 steps
(200 Hz/ 250 Hz/ 315 Hz/ 400 Hz)
– Q programmable in 4 steps
(1.0/1.25/1.5/2.0)
– -15 to 15 dB range with 1 dB resolution
 EQ3
– 2nd order frequency response
– Center frequency programmable in 4 steps
(630 Hz/ 800 Hz/ 1 kHz/ 1.25 kHz)
– Q programmable in 4 steps (0.75/1.0/1.25/2)
– -15 to 15 dB range with 1 dB resolution
 EQ4
– 2nd order frequency response
– Center frequency programmable in 4 steps
(2 kHz/ 2.5 kHz/ 3.15 kHz/ 4 kHz)
– Q programmable in 4 steps (0.75/1.0/1.25/2)
– -15 to 15 dB range with 1 dB resolution
 EQ5
– 2nd order frequency response
– Center frequency programmable in 4 steps
(6.3 kHz/ 8 kHz / 10 kHz/ 12.5 kHz)
– Q programmable in 4 steps (0.75/1.0/1.25/2)
– -15 to 15 dB range with 1 dB resolution
 Highpass
– 2nd order frequency response
– Center frequency programmable in 5 steps
(63 Hz / 100 Hz / 120 Hz / 150 Hz/ 180 Hz)
 Subwoofer
– 2nd order low pass filter
– Programmable cut off frequency
– (55 Hz / 85 Hz / 120 Hz / 160 Hz)
 Speaker
– 6 independent soft step speaker controls
– +15 dB to -79 dB with 1 dB steps
– Three selectable output DC level
– Direct mute
 Mute functions
– Direct mute
– Digitally controlled SoftMute with 4
programmable mute-times
– (0.48 ms / 0.96 ms / 8 ms / 16 ms)
 Offset detection
– Offset voltage detection circuit for on-board
power amplifier failure diagnosis

Данный контент доступен только зарегистрированным пользователям.

http://forum.rcl-radio.ru/uploads/images/2019/09/747869a91df790ba128e28d907203865.png