BU26154MUV Datasheet, PDF (59/89 Pages) Rohm – High PSRR is attained by built-in regulator

BU26154MUV
Datasheet
HPF1EN/ HPF1ENB
This bit is to set ON or OFF of a first-order high pass filter for DC cut. Do not change this bit during operation of the
recording (0x13/0x14: RECPLAY=0x1, 0x3, or 0x7). If this bit is changed, the noise may be generated.
When this IC being operated the playing (RECPLAY=0x2), this bit operating don't have effective.
HPF1EN/
HPF1ENB
Explanation
0
Primary high-pass filter OFF for the DC cut
1
Primary high-pass filter ON for the DC cut
HPF2EN/ HPF2ENB
This bit is to set ON or OFF of a second-order high pass filter for noise cut. Do not change this bit during operation of the
recording (RECPLAY=0x1,0x3, or 0x7). If this bit is changed, the noise may be generated.
The bit of HPF2EN is effective only when 0xA6/0xA7:RLPFEN is enable.
HPF2EN/
HPF2ENB
Explanation
0
Second high-pass filter OFF for noise reduction
1
Second high-pass filter ON for noise reduction
EQ0EN/EQ0ENB
This bit is to set ON or OFF of equalizer band 0. In case of changing this bit during recording and playback operation
(RECPLAY=0x1, 0x2, 0x3, or 0x7), enables digital volume fade function (0x68/0x69: DVFADE=1) and then change the gain
to 0dB.
EQ0EN/
EQ0ENB
Explanation
0
Equalizer band 0 OFF
1
Equalizer band 0 ON
EQ1EN/EQ1ENB
This bit is to set ON or OFF of equalizer band 1. In case of changing this bit during recording and playback operation
(0x13/0x14: RECPLAY=0x1, 0x2, 0x3, or 0x7), enables digital volume fade function (0x68/0x69: DVFADE=1) and then
change the gain to 0dB.
EQ1EN/
EQ1ENB
Explanation
0
Equalizer band 1 OFF
1
Equalizer band 1 ON
EQ2EN/EQ2ENB
This bit is to set ON or OFF of equalizer band 2. In case of changing this bit during recording and playback operation
(0x13/0x14: RECPLAY=0x1, 0x2, 0x3, or 0x7), enables digital volume fade function (0x68/0x69: DVFADE=1) and then
change the gain to 0dB.
EQ2EN/
EQ2ENB
Explanation
0
Equalizer band 2 OFF
1
Equalizer band 2 ON
EQ3EN/EQ3ENB
This bit is to set ON or OFF of equalizer band 3. In case of changing this bit during recording and playback operation
(0x13/0x14: RECPLAY=0x1, 0x2, 0x3, or 0x7), enables digital volume fade function (0x68/0x69: DVFADE=1) and then
change the gain to 0dB.
EQ3EN/
EQ3ENB
Explanation
0
Equalizer band 3 OFF
1
Equalizer band 3 ON
EQ4EN/EQ4ENB
This bit is to set ON or OFF of equalizer band 4. In case of changing this bit during recording and playback operation
(0x13/0x14: RECPLAY=0x1, 0x2, 0x3, or 0x7), enables digital volume fade function (0x68/0x69: DVFADE=1) and then
change the gain to 0dB.
EQ4EN/
EQ4ENB
Explanation
0
Equalizer band 4 OFF
1
Equalizer band 4 ON
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TSZ02201-0V1V0R501570-1-2
23.Jun.2014 Rev.001