tda7468 STMicroelectronics, tda7468 Datasheet - Page 18

• Manufacturer Part Number: tda7468
• Description: Two Bands Digitally Controlled Audio Processor With Bass Alc Surround
• Manufacturer: STMicroelectronics

TDA7468D
Table 15. BASS ALC
Figure 9. BASS ALC : Threshold curve
18/22
(V
V
RMS
0.1
1
MSB
O
D7
)
0
1
Supply Voltage : 9.0V
Frequency : 60Hz
Bassfilter : 60Hz/28dB boost
Internal release circuit : ON
Attack mode : 12.5kohm, mode2(adaptive)
0.01
D6
0
0
1
1
D5
0
1
0
1
0.1
D4
0
0
1
1
D3
0
1
0
1
1
D00AU1100
V
IN
(V
RMS
D2
1
0
)
Figure 10. BASS ALC : THD
0.001
THD
0.01
[%]
0.1
10
1
D1
1
0
Supply Voltage : 9.0V
Frequency : 60Hz
Bassfilter : 60Hz/28dB boost
Internal release circuit : ON
Attack mode : 12.5kohm, mode2(adaptive)
LSB
0.01
D0
1
0
MODE 1: Fixed Resistor
Release Current Circuit
Attack Time Resistor
MODE 2: Adaptive
0.1
Attack Mode
BASS ALC
700mVrms
485mVrms
320mVrms
170mVrms
ALC Mode
Threshold
Detector
12.5KΩ
100KΩ
25KΩ
50KΩ
OFF
OFF
OFF
ON
ON
ON
1
V
D99AU1101A
IN
(V
RMS
)