TC9470FN Datasheet, PDF (15/19 Pages) Toshiba Semiconductor – Modulation DA Converter with Built-in 8-Times Oversampling Digital Filter/Dynamic Digital Bass Boost/Analog Filter

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