ak4682 AKM Semiconductor, Inc., ak4682 Datasheet - Page 25

• Manufacturer Part Number: ak4682
• Description: Multi-channel Codec With 2vrms Stereo Selector
• Manufacturer: AKM Semiconductor, Inc.

The stereo matrix control has the four channel independent soft transition using soft muting function.
Notes:
MS0610-E-01
DAC1 Lch Setting
DAC1 Lch OUT
(1) ATT_DATA×ATT transition time (Table 18, Table 19). For example, in Normal Speed Mode, this time is
(2) The analog output corresponding to the digital input has a group delay, GD.
(3) If the soft mute is cancelled before attenuating to -∞ after starting the operation, the attenuation is discontinued
(Control Register)
Attenuation
1061/fs cycles (256/fs) at ATT_DATA=00H. ATT transition of the soft-mute is from 00H to FFH
and returned to ATT level by the same cycle.
ATT Level
-∞
L
Figure 10. Soft Mute Function for Stereo Matrix Control
L
(1)
(L+R)/2
(1)
GD
(2)
(L+R)/2
- 25 -
R
(1)
GD (2)
L
(3)
(3)
L
R
(1)
GD
(2)
R
R
[AK4682]
2007/07