參數(shù)資料
型號(hào)： AK4356VQ
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 192kHz 24 Bit IX-CHANNEL DAC FOR DVD-AUDIO
中文描述： 192kHz的24位九通道DAC的DVD -音頻
文件頁(yè)數(shù)： 26/29頁(yè)
文件大小： 281K
代理商： AK4356VQ
ASAHI KASEI
[AK4356]
M0072-E-01
1999/09
- 26 -
Analog Ground
Digital Ground
System
Controller
DVSS
D
12
SDTI1
1
13
SDTI2
14
SDTI3
15
LRCK
16
SMUTE
17
CCLK
18
CDTI
19
CSN
20
DFS0
21
CKS0
22
C
2
44
ROUT1+
AK4356
2
2
2
2
2
2
3
3
3
3
C
D
D
D
D
D
D
D
V
A
43
ROUT1-
42
LOUT2+
41
LOUT2-
40
ROUT2+
39
ROUT2-
38
LOUT3+
37
LOUT3-
36
ROUT3+
35
ROUT3-
34
AVSS
M
B
9
P
8
C
7
C
6
D
5
D
4
D
3
L
2
L
1
Figure 9. Ground Layout
Note: AVSS and DVSS must be connected to the same analog ground plane.
1. Grounding and Power Supply Decoupling
The AK4356 requires careful attention to power supply and grounding arrangements. AVDD and DVDD are usually
supplied from analog supply in system. Alternatively if AVDD and DVDD are supplied separately, the power up sequence
is not critical.
AVSS and DVSS of the AK4356 must be connected to analog ground plane
. System analog ground and
digital ground should be connected together near to where the supplies are brought onto the printed circuit board.
Decoupling capacitors should be near to the AK4356 as possible, with the small value ceramic capacitors being the nearest.
2. Voltage Reference Inputs
VREFH sets the analog output range. VREFH pin is normally connected to AVDD with a 0.1
m
F ceramic capacitor. All
signals, especially clocks, should be kept away from the VREFH pin in order to avoid unwanted coupling into the AK4356.
3. Analog Outputs
The analog outputs are full-differential outputs and 0.55 x VREFH Vpp (typ) centered around the internal common voltage
(about AVDD/2). The differential outputs are summed externally, V
AOUT
=(AOUT+)-(AOUT-) between AOUT+ and
AOUT-. If the summing gain is 1, the output range is 5.5Vpp (typ @VREFH=5V). The bias voltage of the external
summing circuit is supplied externally. The input data format is 2’s complement. The output voltage(V
AOUT
) is a positive
full scale for 7FFFFF(@24bit) and a negative full scale for 800000H(@24bit). The ideal V
AOUT
is 0V for
000000H(@24bit).
The internal switched-capacitor filter and external low pass filter attenuate the noise generated by the delta-sigma
modulator beyond the audio passband.
DC offset on AOUT+/- is eliminated without AC coupling since the analog outputs are differential. Figure 10 and 11 show
the example of external op-amp circuit summing the differential outputs.
相關(guān)PDF資料
PDF描述
AK4357 192kHz 24-Bit 6ch DAC with DSD Input
AK4357VQ 192kHz 24-Bit 6ch DAC with DSD Input
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4357 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit 6ch DAC with DSD Input
AK4357VQ 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit 6ch DAC with DSD Input
AK4358 制造商:AKM 制造商全稱:AKM 功能描述:digital audio interface that can interface with digital audio systems via opt-connector or RCA connector
AK4358_06 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit 8ch DAC with DSD Input
AK4358VQ 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit 8ch DAC with DSD Input
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