BU26156RFS Datasheet, PDF (51/95 Pages) Rohm – Monoraul MIC Input with ALC

BU26156RFS
Playback Digital Attenuator Control Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x0
0x3e 0x3f
PDATT
1
1
1
1
1
1
1
1
This register is to set the digital VolumeGain on DAC path.
It is available MUTE and -71.5dB to 0.5dB every 0.5dB.
PDATT[7:0]
These bits are to set PLAYDATT : digital VolumeGain.
PDATT[7:0] Gain[dB] Value Gain[dB] Value
0x00 to
0x6E
0x6F
Prohibited
MUTE
0x93
0x94
-54.0
-53.5
0xB8
0xB9
0x70
0x71
-71.5
-71.0
0x95
0x96
-53.0
-52.5
0xBA
0xBB
0x72
0x73
-70.5
-70.0
0x97
0x98
-52.0
-51.5
0xBC
0xBD
0x74
-69.5
0x99
-51.0
0xBE
0x75
0x76
-69.0
-68.5
0x9A
0x9B
-50.5
-50.0
0xBF
0xC0
0x77
0x78
-68.0
-67.5
0x9C
0x9D
-49.5
-49.0
0xC1
0xC2
0x79
0x7A
-67.0
-66.5
0x9E
0x9F
-48.5
-48.0
0xC3
0xC4
0x7B
0x7C
-66.0
-65.5
0xA0
0xA1
-47.5
-47.0
0xC5
0xC6
0x7D
-65.0
0xA2
-46.5
0xC7
0x7E
0x7F
-64.5
-64.0
0xA3
0xA4
-46.0
-45.5
0xC8
0xC9
0x80
0x81
-63.5
-63.0
0xA5
0xA6
-45.0
-44.5
0xCA
0xCB
0x82
0x83
-62.5
-62.0
0xA7
0xA8
-44.0
-43.5
0xCC
0xCD
0x84
0x85
-61.5
-61.0
0xA9
0xAA
-43.0
-42.5
0xCE
0xCF
0x86
-60.5
0xAB
-42.0
0xD0
0x87
0x88
-60.0
-59.5
0xAC
0xAD
-41.5
-41.0
0xD1
0xD2
0x89
0x8A
-59.0
-58.5
0xAE
0xAF
-40.5
-40.0
0xD3
0xD4
0x8B
0x8C
-58.0
-57.5
0xB0
0xB1
-39.5
-39.0
0xD5
0xD6
0x8D
0x8E
-57.0
-56.5
0xB2
0xB3
-38.5
-38.0
0xD7
0xD8
0x8F
-56.0
0xB4
-37.5
0xD9
0x90
-55.5
0xB5
-37.0
0xDA
0x91
0x92
-55.0
-54.5
0xB6
0xB7
-36.5
-36.0
0xDB
0xDC
Gain[dB]
-35.5
-35.0
-34.5
-34.0
-33.5
-33.0
-32.5
-32.0
-31.5
-31.0
-30.5
-30.0
-29.5
-29.0
-28.5
-28.0
-27.5
-27.0
-26.5
-26.0
-25.5
-25.0
-24.5
-24.0
-23.5
-23.0
-22.5
-22.0
-21.5
-21.0
-20.5
-20.0
-19.5
-19.0
-18.5
-18.0
-17.5
Value
0xDD
0xDE
0xDF
0xE0
0xE1
0xE2
0xE3
0xE4
0xE5
0xE6
0xE7
0xE8
0xE9
0xEA
0xEB
0xEC
0xED
0xEE
0xEF
0xF0
0xF1
0xF2
0xF3
0xF4
0xF5
0xF6
0xF7
0xF8
0xF9
0xFA
0xFB
0xFC
0xFD
0xFE
0xFF
Gain[dB]
-17.0
-16.5
-16.0
-15.5
-15.0
-14.5
-14.0
-13.5
-13.0
-12.5
-12.0
-11.5
-11.0
-10.5
-10.0
-9.5
-9.0
-8.5
-8.0
-7.5
-7.0
-6.5
-6.0
-5.5
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
Prohibited
*Set 0xFF is prohibited. It has possibilities that DAC output waveform has distorted.
Datasheet
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TSZ22111・15・001
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TSZ02201-0V1V0E502570-1-2
Jul.1.2014 Rev.001