TDA7468D View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7468D

TWO BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR WITH BASS ALC SURROUND

STMicroelectronics 

TDA7468D

Table 15. BASS ALC

MSB

LSB

D7

D6

D5

D4

D3

D2

D1

D0

1

0

1

0

1

0

0

0

0

1

1

0

1

1

0

0

0

1

1

0

1

1

0

1

BASS ALC

ALC Mode

ON

OFF

Detector

ON

OFF

Release Current Circuit

ON

OFF

Attack Time Resistor

12.5KΩ

25KΩ

50KΩ

100KΩ

Threshold

700mVrms

485mVrms

320mVrms

170mVrms

Attack Mode

MODE 1: Fixed Resistor

MODE 2: Adaptive

Figure 9. BASS ALC : Threshold curve

VO

(VRMS)

1

Supply Voltage : 9.0V

Frequency : 60Hz

Bassfilter : 60Hz/28dB boost

Internal release circuit : ON

Attack mode : 12.5kohm, mode2(adaptive)

Threshold1

Threshold2

Threshold3

Threshold4

0.1

D00AU1100

0.01

0.1

1

VIN(VRMS)

Figure 10. BASS ALC : THD

THD

[%]

10

1

Supply Voltage : 9.0V

Frequency : 60Hz

Bassfilter : 60Hz/28dB boost

Internal release circuit : ON

Attack mode : 12.5kohm, mode2(adaptive)

0.1

0.01

0.001

0.01

0.1

D99AU1101A

1 VIN(VRMS)

18/22

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