Datasheet

TDA7468
18/23
Table 15. BASS ALC
MSB LSB BASS ALC
D7 D6 D5 D4 D3 D2 D1 D0
ALC Mode
1ON
0OFF
Detector
1ON
0OFF
Release Current Circuit
1ON
0OFF
Attack Time Resistor
0 0 12.5KΩ
0 1 25KΩ
1 0 50KΩ
1 1 100KΩ
Threshold
0 0 700mVrms
0 1 485mVrms
1 0 320mVrms
1 1 170mVrms
Attack Mode
0 MODE 1: Fixed Resistor
1 MODE 2: Adaptive
Figure 9. BASS ALC : Threshold curve Figure 10. BASS ALC : THD
0.1
1
0.01 0.1 1
V
O
(V
RMS
)
V
IN
(VRMS)
D00AU1100
Supply Voltage : 9.0V
Frequency : 60Hz
Bassfilter : 60Hz/28dB boost
Internal release circuit : ON
Attack mode : 12.5kohm, mode2(adaptive)
Threshold1
Threshold2
Threshold4
Threshold3
0.001
0.01
0.1
1
10
0.01 0.1 1V
IN
(V
RMS
)
THD
[%]
Threshold4
Threshold3
Threshold2
Threshold1
Supply Voltage : 9.0V
Frequency : 60Hz
Bassfilter : 60Hz/28dB boost
Internal release circuit : ON
Attack mode : 12.5kohm, mode2(adaptive)
D99AU1101
A