BU26154MUV Datasheet, PDF (72/89 Pages) Rohm – High PSRR is attained by built-in regulator

BU26154MUV
Datasheet
Speaker Amplifier Input Control Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x1
0x84 0x85
-
-
-
-
SPIN2EN SPIN1EN
SPVOL
-
-
-
-
0
0
0
0
This register is to set the input path and the volume of the speaker amplifier.
SPVOL
This register is to set the volume level of the speaker amplifier.
SPVOL
Explanation
0x0
0dB
0x1
6dB
0x2
12dB
0x3
18dB
SPIN1EN
This bit is to set the input path of the speaker amplifier.
SPIN1EN
Explanation
0x0
Disconnect the output of the Lch volume to a speaker amplifier.
0x1
Connect the output of the Lch volume to a speaker amplifier.
SPIN2EN
This bit is to set the input path of the speaker amplifier.
SPIN2EN
Explanation
0x0
Disconnect the output of the Rch volume to a speaker amplifier.
0x1
Connect the output of the Rch volume to a speaker amplifier.
Play Programmable LPF Setting Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x1
0xa0 0xa1
-
-
-
-
-
-
PLPFOD PLPFEN
-
-
-
-
-
-
0
0
This register is to set “LPF” block for DAC-path (playback) in digital signal flow. This is to set Enable/Disable and filter order.
This function is effective for DAC-path (playback) at “PLPFEN=1” and “SEMODE [7] =1”.
PLPFEN
This bit is to set Enable/Disable of low pass filter for DAC-path.
PLPFEN
Explanation
0
LPF for DAC-path is Disable
1
LPF for DAC-path is Enable
PLPFOD
This bit is to set number of low pass filter order for DAC-path.
PLPFOD
Explanation
0
LPF for DAC-path is second-order
1
LPF for DAC-path is first-order
Play Programmable LPF Coef (L) Register
Play Programmable LPF Coef (H) Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x1
0xa2 0xa3
PLPFC0L
0
0
0
0
0
0
0
0
0x1
0xa4 0xa5
PLPFC0H
0
0
0
0
0
0
0
0
This register is to set “LPF” block for DAC-path (playback) in digital signal flow. This is to set Enable/Disable and filter order.
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
72/86
TSZ02201-0V1V0R501570-1-2
23.Jun.2014 Rev.001