MSP3401G datasheet(39/104 Pages) MICRONAS

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PRELIMINARY DATA SHEET

MSP 34x1G

Micronas

00 6Ahex

MDB Harmonic Content

bit[15:8]

00hex

no harmonics are added (default)

64hex

50% fundamentals + 50% harmonics

7Fhex

100% harmonics

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.

MDB_HMC

00 6Bhex

MDB Low Pass Corner Frequency

bit[15:8]

50 Hz

660 Hz

...

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).

MDB_LP

00 6Chex

MDB High Pass Corner Frequency

bit[15:8]

20 Hz

330 Hz

...

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).

MDB_HP

Table 3–11: Write Registers on I2C Subaddress 12hex, continued

Address

Function

Name

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