MSP3421G MICRONAS [Micronas], MSP3421G Datasheet - Page 39

• Manufacturer Part Number: MSP3421G
• Description: Multistandard Sound Processor Family with Virtual Dolby Surround
• Manufacturer: MICRONAS [Micronas]

PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I
Micronas
Register
Address
00 6A
00 6B
00 6C
hex
hex
hex
Function
MDB Harmonic Content
bit[15:8]
bit[7:0]
MDB creates harmonics of the frequencies below the MDB highpass frequency
(MDB_HP). The variable MDB_HMC describes the ratio of the harmonics
towards the original signal.
MDB Low Pass Corner Frequency
bit[15:8]
bit[7:0]
The MDB lowpass corner frequency (range 50...300 Hz) defines the upper cor-
ner frequency of the MDB bandpass filter. Recommended values are the same
as for the MDB highpass corner frequency (MDB_HP).
MDB High Pass Corner Frequency
bit[15:8]
bit[7:0]
The MDB highpass corner frequency defines the lower corner frequency of the
MDB bandpass filter. The highpass filter avoids loading the loudspeakers with
low frequency components that are below the speakers’ cut off frequency. Rec-
ommended values for subwoofer systems are around 5 (=50 Hz), for regular TV
sets around 10 (=100 Hz).
00
64
7F
00
5
6
...
30
00
2
3
...
30
00
hex
hex
hex
hex
hex
hex
2
C Subaddress 12
no harmonics are added (default)
50% fundamentals + 50% harmonics
100% harmonics
must be zero
300 Hz
must be zero
300 Hz
must be zero
50 Hz
60 Hz
20 Hz
30 Hz
hex
, continued
MSP 34x1G
Name
MDB_HMC
MDB_LP
MDB_HP
39