BU26156RFS Datasheet, PDF (25/95 Pages) Rohm – Monoraul MIC Input with ALC

BU26156RFS
Datasheet
DAC used singal frow
Serial
L/R
Audio IF MIX
Filter Block
PALC
DV
MUTE
Effect ^Stereo
VOL ^Enhancer
Filter
LPF
PALC
VOL
PDATT
*1 exclusive use
From Line
From Mic
Soft
Clip
DAC
To
LIN MIX
Figure 26.
From BEEPIN
AV
MUTE
MIX1 SPVOL SPMIXG
*2 Class-D only
MIX2
SPMUTE
*2
To
Speaker
MIX3
HPVOL
To
Headphone
Name
L/R MIX
Effect
Vol
Stereo
Enhancer
Filter
LPF
PALC
PALCVOL
PDATT
Soft Clip
DAC
MIX1
SPVOL
Function
Lch/Rch mixer for SAI input signal
Digital volume in front of sound effect
blocks.
Stereo enhancer.
Each sound filters are enabled.
Programmable LPF for DAC path.
Digital Playback ALC and Volume
Related Register
Mixer & Volume Control
Playback Effect Volume
Stereo Gain
Sound Effect Mode
DSP Filter Function Enable
EQ Band N Gain Setting
Programmable EQ Band
N Coeffeicient-a0/1
Play Programmable LPF Setting
Play Programmable LPF Cutoff Coef
Playback ALC Attack Time Control
Playback ALC Decay Time Control
Playback Target Level Control
Playback ALC Min Gain Control
Playback ALC Volume Control
Playback ALC Zerocross Timeout
Playback Limiter Fast Release Setting
Setting
Mixer setting
-71.5dB to 0dB (0.5dBstep)
3D effect
Sound effect mode setting.
Each filters Enable/Disable
Each filters gain setting
Each sound effects characteristics
setting
HPF Enable/Disable setting
Order setting
Cut-off frequency setting
ALC operation settings
Digital Attenuator for DAC path.
Fader for noise reduction at changing the
digital volume
Playback Digital Attenuator Control
Digital Volume Control Function
Enable
Mixer & Volume Control
Volume setting
-71.5dB to 0.5dB (0.5dBstep)
Fader ON/OFFsetting
Fade time setting
Softclip limiter for output suppression
24bit DA Converter
Mixing DAC output and analog input.
Soft Clip Enable
Soft Clip Threshold
Soft Clip Gain
DAC Power Management
Speaker Amplifier Output Control 2
Softclip Enable/Disable
Threshold level, Gain setting
DAC Enable/Disable
Gain setting
Mixing paths setting
Analog Volume for DAC to analog output
path.
Speaker Amplifier Volume Control
Amplifier Volume Fader Control
Amplifier Volume Control Function
Enable
Volume setting
-54 to +6dB
Fader ON/OFF setting
Fade time setting
SPMIXG
Analog Volume for Speaker output path Speaker Amplifier Output Control 1
MIX2
Mixing Speaker output signal and SPAMP input Control
BEEPIN input signal.
BEEPIN Amp Control
MIX3
Mixing Headphone output signal and SPAMP input Control
BEEPIN input singlal.
BEEPIN Amp Control
HPVOL
Analog Volume for Headphone output
path
Headphone output Gain Setting
*Filter Block can be used for either ADC path or DAC path.
For example, if Filter Block is connectd to DAC, ADC is not effcetd by filter.
Regadrding the detail of register setting, please refer to selection of [SEMDE] register.
Gain setting
Mixing paths setting
Mixing paths setting
Gain setting
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TSZ22111・15・001
25/92
TSZ02201-0V1V0E502570-1-2
Jul.1.2014 Rev.001