BU26156RFS Datasheet, PDF (45/95 Pages) Rohm – Monoraul MIC Input with ALC

BU26156RFS
Datasheet
Analog Input Power Management Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x0
0x22 0x23
-
-
-
-
PGAEN(*) ADCREN ADCLEN LIEN
-
-
-
-
0
0
0
0
This register controls power up and down of the input part of the analog circuit.
LIEN
This bit controls power up and down of the Line input amplifier.
LIEN
Description
0
Line input amplifier power down
1
Line input amplifier power up
This LSI charge the couppling capacitor of LIN pins, when LIEN bit is changed from 0 to 1. This period’s time is counted by
master clock which is between about 97ms and about 142ms. In this period, the output path of LINVOL amplifier is open, so
input signal is muted for next part amplifier. It does n’t depend on LIN1EN,LIN2EN,LIN3EN,LINMXEN and MICMXEN
registers.
*Pleas set this register to “1” at MIC recording.
ADCLEN
This bit controls power up and down of the ADC left.
ADCLEN
Description
0
ADC left power down
1
ADC left power up
ADCREN
This bit controls power up and down of the ADC right.
ADCREN
Description
0
ADC right power down
1
ADC right power up
PGAEN
This bit controls power up and down of the MIC input amplifier.
PGAEN
Description
0
Mic input amplifier power down
1
Mic input amplifier power up
DAC Power Management Register
MAPCON
INDEX
b07
b06
b05
b04
R
W
(Initial)
0x0
0x24 0x25
-
-
-
-
-
-
-
-
This register controls power up and down of the DAC
DACLEN
This bit controls power ON and OFF of the DAC left
DACLEN
Description
0
DAC left power down
1
DAC left power up
DACREN
This bit controls power ON and OFF of the DAC right
DACREN
Description
0
DAC right power down
1
DAC right power up
b03
b02
b01
b00
-
DACREN DACLEN
-
-
0
0
-
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TSZ22111・15・001
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TSZ02201-0V1V0E502570-1-2
Jul.1.2014 Rev.001