BU9408KS2_12 Datasheet, PDF (48/57 Pages) Rohm – 32bit Audio DSP with Built-in 4ch DAC and ASRC

BU9408KS2
Technical Note
7. Mute Function by MUTE1B, MUTE2B and MUTE3B Terminal
BU9408KS2 has a mute function by an external terminal.
It's possible to mute DSP's main and sub digital output by MUTE1B (12pin) terminal to “L”.
It's possible to mute DF1+ΔΣDAC output by MUTE2B (13pin) terminal to “L”.
It's possible to mute DF2＋16bit DAC output by MUTE3B (14pin) terminal to “L”.
Soft mute transition time setup of a MUTE1B terminal (12PIN)
Mute the Main and Sub output of DSP.
Select the transition time of entering from 0dB to mute state.
Default = 0
Select Address
&h10 [ 1:0 ]
Value
0
1
2
3
21.4ms
10.7ms
5.4ms
2.7ms
Operating Description
(Release mute time is 21.4ms.)
(Release mute time is 10.7ms.)
(Release mute time is 10.7ms.)
(Release mute time is 10.7ms.)
Soft mute transition time setup of a MUTE2B terminal (13PIN)
Mute the AOUTL2(22PIN) and AOUTR2(20PIN) output of DF1+ΔΣDAC.
Select the transition time of entering from 0dB to mute state.
Default = 0
Select Address
&h10 [ 3:2 ]
Value
0
1
2
3
21.4ms
10.7ms
5.4ms
2.7ms
Operating Description
(Release mute time is 21.4ms.)
(Release mute time is 10.7ms.)
(Release mute time is 10.7ms.)
(Release mute time is 10.7ms.)
Soft mute transition time setup of a MUTE3B terminal (14PIN)
Mute the AOUTL1(17PIN) and AOUTR1(16PIN) output of DF2+16bit DAC.
Select the transition time of entering from 0dB to mute state.
Default = 0
Select Address
&h10 [ 5:4 ]
Value
0
1
2
3
21.4ms
10.7ms
5.4ms
2.7ms
Operating Description
(Release mute time is 21.4ms.)
(Release mute time is 10.7ms.)
(Release mute time is 10.7ms.)
(Release mute time is 10.7ms.)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
48/53
2012.03 - Rev.A