PRELIMINARY DATA SHEET
MSP 34x1G
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 6Ahex
MDB Harmonic Content
MDB_HMC
bit[15:8] 00hex
64hex
no harmonics are added (default)
50% fundamentals + 50% harmonics
100% harmonics
7Fhex
bit[7:0]
00hex
must be zero
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.
00 6Bhex
MDB Low Pass Corner Frequency
MDB_LP
bit[15:8]
5
6
50 Hz
60 Hz
...
30
300 Hz
bit[7:0]
00hex
must be zero
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).
00 6Chex
MDB High Pass Corner Frequency
MDB_HP
bit[15:8]
2
3
20 Hz
30 Hz
...
30
300 Hz
bit[7:0]
00hex
must be zero
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).
Micronas
39
MICRONAS [ MICRONAS ]
