參數(shù)資料
型號(hào)： AKD4384
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： 圓形連接器
英文描述： Circular Connector; No. of Contacts:3; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:12-3 RoHS Compliant: No
中文描述： 一零六分貝192kHz的24位2通道數(shù)模轉(zhuǎn)換器
文件頁(yè)數(shù)： 14/22頁(yè)
文件大?。?/td> 241K
代理商： AKD4384
ASAHI KASEI
[AK4384]
MS0176-E-00
2002/09
- 14 -
n
System Reset
The AK4384 should be reset once by bringing PDN= “L” upon power-up. The AK4384 is powered up and the internal
timing starts clocking by LRCK “
↑
” after exiting reset and power down state by MCLK. The AK4384 is in the power-down
mode until MCLK and LRCK are input.
n
Power-down
The AK4384 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.
PDN
Normal Operation
Internal
State
Power-down
Normal Operation
GD
GD
“0” data
D/A Out
(Analog)
D/A In
(Digital)
Clock In
MCLK, LRCK, BICK
(1)
(3)
(6)
DZFL/DZFR
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) influences system application.
The timing example is shown in this figure.
(6) DZF pins are “L” in the power-down mode (PDN = “L”).
Figure 6. Power-down/up Sequence Example
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