參數(shù)資料
型號(hào): AK4586VQ
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: 圓形連接器
英文描述: Circular Connector; MIL SPEC:MIL-C-5015 A/B/C; Body Material:Aluminum Alloy; Series:97-3100A; No. of Contacts:4; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No
中文描述: 多通道音頻編解碼器迪爾
文件頁數(shù): 33/54頁
文件大?。?/td> 586K
代理商: AK4586VQ
ASAHI KASEI
[AK4586]
MS0097-E-01
2001/12
- 33 -
Digital Attenuator
The AK4586 has channel-independent digital attenuator (256 levels, 0.5dB step). Attenuation level of each channel can
be set by each ATT7-0 bits (Table 17).
ATT7-0
Attenuation Level
00H
0dB
01H
-0.5dB
02H
-1.0dB
:
FDH
-126.5dB
FEH
-127.0dB
FFH
MUTE (-
)
Table 17. Attenuation level of digital attenuator
Transition time between set values of ATT7-0 bits can be selected by ATS1-0 bits (Table 18).
Mode
ATS1
ATS0
0
0
0
1
0
1
2
1
0
3
1
1
Table 18. Transition time between set values of ATT7-0 bits
The transition between set values is soft transition of 7425 levels in mode 0. It takes 7424/fs (155ms@fs=48kHz) from
00H(0dB) to FFH(MUTE) in mode 0. If PDN pin goes to “L”, the ATTs are initialized to 00H. The ATTs are 00H when
RSTN = “0”. When RSTN return to “1”, the ATTs fade to their current value. Digital attenuator is independent of soft
mute function.
:
Default
ATT speed
7424/fs
1061/fs
256/fs
Reserved
Default
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