BU26154MUV Datasheet, PDF (25/89 Pages) Rohm – High PSRR is attained by built-in regulator

BU26154MUV
Datasheet
Signal flow at the time of the reproduction
To Speaker ampifier
Playback
SVPOVLOL
SPINASVEOLL AVAOVLOL
To Headphone ampifier
HPINSEL
DAC
SOFT
CLIP
PLAY
DATT
DV
MUTE
PLAY
ALCVOL
ALC
PLAY
LPF
Filter
Filter Block
HPF2
H-BASS
Effect
Vol
LRM
CON
Digital
Interface
Figure 28
Name
Function
Related Register
Setting
LRMCON
Mixer of the Lch/Rch data input from
SAI.
Mixer & Volume Control
Mixer setting
Effect Vol
P²Bass+
It is digital before the sound is
processed Volume.
Block for P²Bass + processing.
Playback Effect Volume
P²Bass+ Enable
P²Bass+ Parameter*
Volume setting
-71.5dB to 0dB (0.5dBstep)
Setting of P²Bass+
Sound Effect Mode
Sound mode setting
DSP Filter Function Enable
Enable/Disable of each filter
Filter
Notch filter is available
EQ Band N Gain Setting
Gain setting of each filter
Programmable EQ Band
Characteristic setting of each
N Coeffeicient-a0/1
filter and acoustic treatment
Degree setting of LPF for
PLAYLPF
It is programmable LPF for the
reproduction.
Play Programmable LPF Setting
Play Programmable LPF Cutoff
Enable/Disable reproduction of
LPF for reproduction
Characteristic setting of LPF for
Coef
reproduction
When ALC is used It functions as
PLAY
Volume that ALC controls.
ALCVOL
When ALC unused: It functions as
Boost Volume.
Please refer to the application note for the ALC function.
It is an auto level controller.
ALC
ALC is processed to the reproduction
data.
PLAYDATT
Digital Attenuator of the reproduction
route.
Fader can be used for the noise
reduction at the Volume setting
change.
Playback Digital Attenuator
Control
Digital Volume Control Function
Enable
Mixer & Volume Control
Volume setting
-71.5dB to 0dB (0.5dBstep)
Fader ON/OFF setting
(Synchronize with DVMUTE.)
Setting at Fade time
(Synchronize with DVMUTE.)
Reproduction route (PLAYDATT) is
DVMUTE
compulsorily put into the state of
Mute.
The value of PLAYDATT need not be
Digital Volume Control Function
Enable
MUTE ON/ Turning off setting
changed.
SPVOL
The Analog Boost Volume
Speaker amplifier setting.
of
Speaker Amplifier Input Control
Volume setting
0dB/6dB/12dB/18dB
AVOL
The Analog Volume of reproduction
route setting.
Fader can be used for the Pop-noise
reduction at the Volume setting
change.
Analog volume control
Amplifier Volume Fader Control
Amplifier Volume Control Function
Enable
Volume setting
-28dB to +18dB*At BTL
Fader ON/OFF setting
(Synchronize with AVMUTE.)
Setting at Fade time
(Synchronize with AVMUTE.)
Reproduction route (SPVOL) is
AVMUTE
compulsorily put into the state of
Mute. The value of SPVOL need not
Amplifier Volume Control Function
Enable
MUTE ON/OFF setting
be changed.
SPINSEL
It selects the input path to speaker
amplifier.
Speaker Amplifier Input Control
Selection of speaker amplifier
playback path
HPINSEL
It selects the input path to
headphone amplifier.
Headphone Amplifier Input Control
Selection of headphone amplifier
playback path
* Please refer to Sound Effect Mode Register for Filter Block. When Filter Block is connected with the recording route, nothing is processed in the
reproduction route.
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TSZ02201-0V1V0R501570-1-2
23.Jun.2014 Rev.001