AK4691EG AKM [Asahi Kasei Microsystems], AK4691EG Datasheet - Page 50

• Manufacturer Part Number: AK4691EG
• Description: 4ch ADC + 2ch DAC with MIC/HP/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

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Soft mute operation is performed in the digital domain. When the SMUTE bit is changed to “1”, the output signal is
attenuated by −∞ (“0”) during the cycle set by the DVTM bit. When the SMUTE bit is returned to “0”, the mute is
cancelled and the output attenuation gradually changes to the value set by the DVL/R7-0 bits during the cycle set of the
DVTM bit. If the soft mute is cancelled within the cycle set by the DVTM bit after starting the operation, the attenuation
is discontinued and returned to the value set by the DVL/R7-0 bits. The soft mute is effective for changing the signal
source without stopping the signal transmission
(1) The output signal is attenuated until −∞ (“0”) by the cycle set by the DVTM bit.
(2) Analog output corresponding to digital input has the group delay (GD).
(3) If the soft mute is cancelled within the cycle set by the DVTM bit, the attenuation is discounted and returned to the
MS0672-E-00
Soft Mute
value set by the DVL/R7-0 bits.
S M U T E bit
A ttenuation
A nalog O utput
D VL/R 7-0 bits
-∞
D VTM bit
(1)
Figure 31. Soft Mute Function
(Figure
31).
G D
- 50 -
(2)
D VTM bit
G D
(3)
[AK4691]
2007/11