tc9470fn TOSHIBA Semiconductor CORPORATION, tc9470fn Datasheet - Page 15

• Manufacturer Part Number: tc9470fn
• Description: Modulation Da Converter With Built-in 8-times Oversampling Digital Filter/dynamic Digital Bass Boost/analog Filter
• Manufacturer: TOSHIBA Semiconductor CORPORATION

10.2.3 Setting Mode 3
()
(2)
(3)
Digital bass boost mode settings
Bass boost mute setting
from the “L” level to the “H” level.
Attack time/recovery time switch settings
Serial setting mode 3 is enabled when D7 = “H” and D6 = “H”.
Set with DBB, DBB2 and DBB3.
Set with BMUTE. The bass boost mute to be set for bass boost signal by switching the BMUTE
Set with TCA for attack time and TCR for recovery time.
DBB1
DBB2
DBB3
Table 16 Bass Boost Mode Settings
Bass boost mute
Table 17 Bass Boost Mute Setting
The DBB3 settings are as follows.
MODE : DBB OFF
MODE 2: DBB MID
MODE 3: DBB max
MODE 4: DBB max + HB
Time constant of bass boost mute: Approximately 3.8 ms
Table 19 Recovery Time Settings
Table 18 Attack Time Settings
BMUTE
Recovery time
MODE 1
Attack time
L or H
DBB3 = “L”
L
L
TCA
TCA
MODE 2
L or H
H
L
15
OFF
L
6.3 ms
12.3 s
L
L
MODE ’: DBB OFF
MODE 2’: DBB max
MODE 3’: DBB MEGA max
MODE 4’: DBB MEGA max + HB
MODE 3
L or H
H
L
DBB3 = “H”
24.3 ms
24.6 s
ON
H
H
H
MODE 4
L or H
H
H
TC9470FN
2002-02-27