參數資料
型號: AK4357VQ
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 192kHz 24-Bit 6ch DAC with DSD Input
中文描述: 192kHz的24位6通道DAC,具有DSD輸入
文件頁數: 16/27頁
文件大?。?/td> 195K
代理商: AK4357VQ
ASAHI KASEI
[AK4357]
MS0088-E-02
2002/07
- 16 -
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System Reset
The AK4357 should be reset once by bringing PDN= ”L” upon power-up. The analog section exits power-down mode by
MCLK input and then the digital section exits power-down mode after the internal counter counts MCLK during 4/fs.
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Power-down
The AK4357 is placed in the power-down mode by bringing PDN pin “L” and the anlog outputs are floating (Hi-Z). Figure
6 shows an example of the system timing at the power-down and power-up.
Each DAC can be powered down by each power-down bit (PW1-3) “0”. In this case, the internal register values are not
initialized and the analog output is Hi-Z. Because some click noise occurs, the analog output should be muted externally if
the click noise influences system application.
Normal Operation
Internal
State
PDN
Power-down
Normal Operation
GD
GD
“0” data
D/A Out
(Analog)
D/A In
(Digital)
Clock In
MCLK, LRCK, BICK
(1)
(3)
(6)
DZF
External
MUTE
(5)
(3)
(1)
Mute ON
(2)
(4)
Don’t care
Notes:
(1) The analog output corresponding to digital input has the group delay (GD).
(2) Analog outputs are floating (Hi -Z) at the power-down mode.
(3) Click noise occurs at the edge of PDN signal. This noise is output even if “0” data is input.
(4) The external clocks (MCLK, BICK and LRCK) can be stopped in the power-down mode (PDN = “L”).
(5) Please mute the analog output externally if the click noise (3) influence system application.
The timing example is shown in this figure.
(6) DZF pins are “L” in the power-down mode (PDN = “L”).
Figure 7. Power-down/up Sequence Example
相關PDF資料
PDF描述
AK4358 192 KHZ 24 BIT 8 CH DAC WITH DSD INPUT
AKD4358 Circular Connector; No. of Contacts:22; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:12-35 RoHS Compliant: No
AK4358VQ 192 KHZ 24 BIT 8 CH DAC WITH DSD INPUT
AK4359 192 KHZ 24 BIT 8CH DAC
AKD4359 Circular Connector; No. of Contacts:22; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:12-35 RoHS Compliant: No
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