AK4343EN AKM [Asahi Kasei Microsystems], AK4343EN Datasheet - Page 48
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AK4343EN
Manufacturer Part Number
AK4343EN
Description
Stereo DAC with HP/RCV/SPK-AMP
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK4343EN.pdf
(98 pages)
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ASAHI KASEI
Soft mute operation is performed in the digital domain. When the SMUTE bit goes 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 (Figure 36).
(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
MS0478-E-01
Soft Mute
value set by the DVL/R7-0 bits.
SM U T E bit
Attenuation
Analog O utput
D V L/R 7-0 bits
-∞
D VTM bit
(1)
Figure 36. Soft Mute Function
G D
- 48 -
(2)
D V TM bit
G D
(3)
[AK4343]
2006/10
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