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參數(shù)資料
| 型號： | AK4346 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 3.3V 192kHz 24-Bit 6-Channel DAC |
| 中文描述： | 3.3 192kHz的24位6通道DAC |
| 文件頁數(shù)： | 28/31頁 |
| 文件大?。?/td> | 379K |
| 代理商： | AK4346 |
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ASAHI KASEI
[AK4346]
MS0531-E-00
2006/07
- 28 -
Analog Ground
Digital Ground
System
Controller
BICK
SDTI1
3
LRCK
4
PDN
5
SMUTE/CSN/CAD0
6
ACKS/CCLK/CSL
7
DFS0/CDT/SDA
8
SDTI2
9
SDTI3
10
TST1
11
DIF1
12
DEM0/CAD1
13
TDM0/DZF2
29
AVDD
28
AVSS
27
VCOM
26
LOUT1
25
ROUT1
24
P/S
23
LOUT2
22
ROUT2
21
LOUT3
20
ROUT3
19
TST3
AK4346
18
14
15
17
16
DVDD
DVSS
TST2
DEM1/I2
MCLK
DZF1
30
2
1
Figure 24. Ground Layout
AVSS and DVSS must be connected to the same analog ground plane.
1. Grounding and Power Supply Decoupling
AVDD and DVDD are usually supplied from the analog supply in the system and it should be separated from system
digital supply. Alternatively if AVDD and DVDD are supplied separately, the power up sequence is not critical.
AVSS
and DVSS of the AK4346 must be connected to the analog ground plane
. System analog ground and digital ground
should be connected together close to where the supplies are brought onto the printed circuit board. A decoupling
capacitor, typically a 0.1
μ
F ceramic capacitor for high frequency bypass, should be placed as near to AVDD and DVDD
as possible.
2. Analog Outputs
The analog outputs are single-ended and centered around the VCOM voltage. The output signal range is typically
2.24Vpp (when AVDD=3.3V). The phase of the analog outputs can be inverted channel independently by the
INVL/INVR bits. The internal switched-capacitor filter and continuous-time filter attenuate the noise generated by the
delta-sigma modulator beyond the audio passband. The input data format is 2’s complement. The output voltage is a
positive full scale for 7FFFFFH (@24-bit) and a negative full scale for 800000H (@24-bit). The ideal output is VCOM
voltage for 000000H (@24-bit).
DC offsets on the analog outputs are eliminated by AC coupling since the analog outputs have DC offsets of VCOM + a
few mV.
相關PDF資料 |
PDF描述 |
|---|---|
| AK4346EF | 3.3V 192kHz 24-Bit 6-Channel DAC |
| AK4346VF | 3.3V 192kHz 24-Bit 6-Channel DAC |
| AK4348 | 3.3V 192kHz 24-Bit 8-Channel DAC |
| AK4348EF | 3.3V 192kHz 24-Bit 8-Channel DAC |
| AK4348VF | 3.3V 192kHz 24-Bit 8-Channel DAC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AK4346EF | 制造商:AKM 制造商全稱:AKM 功能描述:3.3V 192kHz 24-Bit 6-Channel DAC |
| AK4346VF | 制造商:AKM 制造商全稱:AKM 功能描述:3.3V 192kHz 24-Bit 6-Channel DAC |
| AK4348 | 制造商:AKM 制造商全稱:AKM 功能描述:3.3V 192kHz 24-Bit 8-Channel DAC |
| AK4348EF | 制造商:AKM 制造商全稱:AKM 功能描述:3.3V 192kHz 24-Bit 8-Channel DAC |
| AK4348VF | 制造商:AKM 制造商全稱:AKM 功能描述:3.3V 192kHz 24-Bit 8-Channel DAC |
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