BU26156RFS Datasheet, PDF (44/95 Pages) Rohm – Monoraul MIC Input with ALC

BU26156RFS
Datasheet
Analog Reference Power Management Register
MAPCON
INDEX
b07
b06
b05
b04
R
W
(Initial)
0x0
0x20 0x21 LOREN LOLEN LOSEL
-
0
0
0
-
b03
b02
b01
b00
-
MICBEN
VMIDCON(*)
-
0
0
0
This register controls power up and down of the Headphone Output amplifier and the analog reference voltage generation
circuit.
VMIDCON[1:0]
These bits control power up and down of the VMID generation circuit. Power up time can be reduced by using high speed
power up mode. VMID generation circuit should be changed to normal mode after power up is completed. About the timing of
setting, please refer to the section of ”Analog Reference Voltage (VMID) generation circuit”.
VMIDCON[1:0
Description
0x0
VMID generation circuit power down
0x1
VMID generation circuit power up high speed power up mode
0x2
VMID generation circuit power up normal mode
MICBEN
This bit controls power up and down of the MICBIAS generation circuit.
MICBEN
Description
0
MICBIAS generation circuit power down
1
MICBIAS generation circuit power up
LOSEL
This bit specify input path to Headphone Output amplifier. It is available DAC output or SPVOL output.
LOSEL
Description
0
DAC output is directly outputted from HPOUT.
1
DAC output is outputted from HPOUT through SPVOL block.
LOLEN
This bit controls HPOUT left output enable or disable.
LOLEN
Description
0
HPOUT left output disabled
1
HPOUT left output enabled
LOREN
This bit controls HPOUT right output enable or disable.
LOREN
Description
0
HPOUT right output disabled
1
HPOUT right output enabled
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TSZ02201-0V1V0E502570-1-2
Jul.1.2014 Rev.001