MAS 35x9F
DATA SHEET
2
Table 3–17: Codec status registers on I C subaddress 6D
hex
Register
Address
(hex)
Function
Name
INPUT QUASI-PEAK
00 0A
A/D Converter Quasi-Peak Detector Readout Left
QPEAK_L
QPEAK_R
bit[14:0]
positive 15-bit value, linear scale
0%
25% (−12 dBFS)
50% (−6 dBFS)
100% (0 dBFS)
0000
2000
4000
7FFF
00 0B
A/D Converter Quasi-Peak Detector Readout Right
bit[14:0]
positive 15-bit value, linear scale
0%
25% (−12 dBFS)
50% (−6 dBFS)
100% (0 dBFS)
0000
2000
4000
7FFF
OUTPUT QUASI-PEAK
00 0C
Audio Processing Input Quasi-Peak Detector Readout Left
bit[14:0] positive 15-bit value, linear scale
Audio Processing Input Quasi-Peak Detector Readout Right
bit[14:0] positive 15-bit value, linear scale
DQPEAK_L
DQPEAK_R
00 0D
3.4.4. Basic MB Configuration
(which results in a softer/harder bass sound), turn
on/off the MB
With the parameters described in Table 3–16, the Mic-
ronas Bass system (MB) can be customized to create
different bass effects, as well as to fit the MB to various
loudspeaker characteristics. The easiest way to find a
good set of parameter is by selecting one of the set-
tings below, listening to music with strong bass content
and adjusting the MB parameters:
– MB_STR: Increase/decrease the strength of the MB
effect
– MB_HAR: Increase/decrease the content of low fre-
quency harmonics
Frequency
MB_SHAPE
MB_FC
– MB_FC: Shift the MB effect to lower/higher frequen-
cies
Fig. 3–5: Micronas Bass (MB): Bass boost in relation
to input signal level
– MB_SHAPE: Widen/narrow MB frequency range
Table 3–18: Suggested MB settings
Function
MB_STR
MB_HAR
MB_FC
MB_SHAPE
(22
)
(23
)
(24
)
(21
)
hex
hex
hex
hex
MB off
xxxx
xxxx
xxxx
xx00
hex
hex
hex
hex
Low end headphones, medium effect
5000
3000
0600
0902
hex
hex
hex
hex
52
June 30, 2004; 6251-505-1DS
Micronas
MICRONAS [ MICRONAS ]
