AK4129 AKM [Asahi Kasei Microsystems], AK4129 Datasheet - Page 31

• Manufacturer Part Number: AK4129
• Description: 6ch 216kHz / 24-Bit Asynchronous SRC
• Manufacturer: AKM [Asahi Kasei Microsystems]

Note: SDTO is identified as SDTO1, SDTO2 and SDTO3.
(1) The soft mute cycle is selected by SMT1-0 pins.
(2) If the soft mute is cancelled before attenuating to −∞, the attenuation is discontinued and returned to 0dB by the same
When power down of the AK4129 is released (PDN pin = “L” → “H”) with the SMSEMI pin= “H”, the AK4129 enters
semi-auto mode. In this mode, soft mute is cancelled automatically 4410/FSO after a rising edge of PDN (100ms
@FSO=44.1kHz). The soft mute is ON after releasing power down if the SMUTE pin = “H”. The SMSEMI pin must be set
during the PDN pin = “L”.
Note: SDTO is identified as SDTO1, SDTO2 and SDTO3.
(1) The output data is attenuated by −∞ during the soft mute cycle
(2) When it is 0dB by a soft mute release after 4410/FSO, it is able to mute or release the mute by the soft mute cycle in
MS1173-E-01
cycle.
clock cycles.
Table
9.
SM U T E p in ,
SM U T E1 -3 b it
Atte nu a tio n
SD T O
S M U T E p in
PD N pi n
Atte n u atio n
SD T O
Figure 32. Soft Mute Function (Manual Mode) 2. Semi-Auto Mode
0 d B
-∞
0 dB
-∞
Figure 33. Soft Mute Function (Semi-Auto Mode)
(1 )
“L ”
D o n ’t ca re
All “0” c od e
All “0” code
(Table
- 31 -
4 41 0 /fso
9) The output data is attenuated by −∞ during the soft mute
(Table
(1 )
9)
(1 )
(2 )
“L ”
(2 )
[AK4129]
2010/09