MSP3410G Micronas, MSP3410G Datasheet - Page 38

• Manufacturer Part Number: MSP3410G
• Description: Multistandard Sound Processor Family
• Manufacturer: Micronas

MSP 34x0G
Table 3–11: Write Registers on I
38
Register
Address
SUBWOOFER OUTPUT CHANNEL
00 2C
00 2D
MICRONAS BASS (MB) CONTROL REGISTERS
00 68
hex
hex
hex
Function
Subwoofer Level Adjustment
bit[15:8]
bit[7:0]
If Micronas BASS is added onto the main channel, this register should be set to
00
Subwoofer Corner Frequency
bit[15:8]
If Micronas BASS is active, SUBW_FREQ must be set to a value higher than
the MB Lowpass Frequency (MB_LP). Choosing the corner frequency of the
subwoofer closer to MB_LP results in a narrower MB frequency range. Recom-
mended value: 1.5 MB_LP
Subwoofer Characteristics
bit[7:4]
An adjustable subwoofer filter characterisitic with four different filter sets can be
selected. Due to the complementary filter design, the output of high- and low-
pass filter add up to 0db at the crossover region for all filter sets.
Subwoofer Complementary High-Pass Filter
bit[3:0]
Micronas BASS Effect Strength
bit[15:8]
bit[7:0]
The Micronas BASS effect strength can be adjusted in 1dB steps. A value of
44
hex
hex
will yield a medium Micronas BASS effect.
0C
...
01
00
FF
...
E3
E2
...
80
00
5...40
0
1
2
3
0
1
2
00
7F
00
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
hex
dec
2
C Subaddress 12
+12 dB
+1 dB
Mute
must be zero
corner frequency in 10 Hz steps
(range: 50...400 Hz)
sharp edge Subwoofer characteristics (default)
medium edge Subwoofer characteristics
soft edge Subwoofer characteristics
very soft edge Subwoofer characteristics
loudspeaker channel unfiltered
a complementary high-pass is processed in the loud-
speaker output channel
Micronas BASS added onto main channel
Micronas BASS OFF (default)
maximum Micronas BASS
must be zero
0 dB (default)
1 dB
29 dB
30 dB
May 27, 2003; 6251-476-1DS
hex
, continued
Name
SUBW_LEVEL
SUBW_FREQ
SUBW_CHAR
SUBW_HP
MB_STR
DATA SHEET
Micronas