BU26154MUV Datasheet, PDF (49/89 Pages) Rohm – High PSRR is attained by built-in regulator

BU26154MUV
Datasheet
ADCEN
It controls power-up / down of the ADC.
Setting
Explanation
0
ADC power down
1
ADC power up
PGAEN
It controls the power-up / down of the microphone amplifier.
Setting
Explanation
0
Microphone amplifier power down
1
Microphone amplifier power up
PGAATT
It controls the gain of the microphone amplifier.
Setting
Explanation
0
Normal mode (0dB)
1
Attenuation mode (-9dB)
DAC Power Management Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x0
0x24 0x25
-
-
-
-
-
DACREN DACLEN
-
-
-
-
-
-
0
0
-
This register controls power-up / down of the DAC.
DACLEN
It controls the power-up / down of the DAC left.
Setting
Explanation
0
power down
1
power up
DACREN
It controls the power-up / down of the DAC right.
Setting
Explanation
0
power down
1
power up
Speaker Amplifier Power Management Register
MAPCON
INDEX
b07
b06
R
W
(Initial)
0x26 0x27 SPMDSEL
-
0
-
b05
b04
b03
b02
-
AVREN COEFSEL
-
-
0
0
1
b01
SPEN
0
b00
AVLEN
0
This register controls speaker amplifier volume’s power-up / down.
b02 is H fix.
AVLEN
It controls power-up / down of the Lch analog volume.
AVLEN
Explanation
0x0
Lch analog volume power down
0x1
Lch analog volume power up
SPEN
I control the power-up / down of the speaker amplifier.
SPEN
Explanation
0x0
Speaker amplifier power down
0x1
Speaker amplifier power up
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TSZ02201-0V1V0R501570-1-2
23.Jun.2014 Rev.001