ak4364 AKM Semiconductor, Inc., ak4364 Datasheet - Page 27

• Manufacturer Part Number: ak4364
• Description: 96khz 24bit ?? Dac With Pll And Dit
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0014-E-02
Addr
03H
04H
When PDN pin goes to “L”, the ATT values are set to 00H. The ATT values fade to FFH(0dB) during Ts after
PDN pin returns to “H”.
When RSTN bit goes to “0”, the ATT values are set to 00H. The ATT values fade to their current values after
RSTN bit returns to “1”.
Digital attenuator is independent of soft mute function.
Equation of attenuation level: ATT = 20 x Log
value is set as ATT2, ATT1 gradually becomes ATT2 with same operation as soft mute. If new value is set as
ATT3 before reaching ATT2, ATT value gradually becomes ATT3 from the way of transition.
The transition between ATT values is same as soft mute operation. When current value is ATT1 and new
Register Name
Lch ATT
Rch ATT
Default
FFH: 0dB
01H: -48.1dB
00H: Mute
Cycle time of soft mute: Ts=1024/fs
:
ATT7
ATT7
D7
1
ATT6
ATT6
D6
1
10
ATT5
ATT5
- 27 -
(Binary level / 255) [dB]
D5
1
ATT4
ATT4
D4
1
ATT3
ATT3
D3
1
ATT2
ATT2
D2
1
ATT1
ATT1
D1
1
[AK4364]
ATT0
ATT0
2001/05
D0
1