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參數(shù)資料
| 型號： | AK4348EF |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 3.3V 192kHz 24-Bit 8-Channel DAC |
| 中文描述： | 3.3 192kHz的24位8通道DAC |
| 文件頁數(shù)： | 28/31頁 |
| 文件大小： | 386K |
| 代理商： | AK4348EF |
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ASAHI KASEI
[AK4348]
MS0532-E-00
2006/07
- 28 -
Analog Ground
Digital Ground
System
Controller
BICK
SDTI1
3
LRCK
4
RSTB
5
SMUTE/CSN/CAD0
6
ACKS/CCLK/CSL
7
DFS0/CDT/SDA
8
SDTI2
9
SDTI3
10
SDTI4
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
LOUT4
AK4348
18
14
15
17
16
DVDD
DVSS
ROUT4
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 AK4348 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(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4348VF | 3.3V 192kHz 24-Bit 8-Channel DAC |
| AK4351 | ECONOLINE: REC3-S_DRW(Z)/H4,H6 - Safety standards and approval: EN 60950 certified, rated for 250VAV (LVD test report)- Applied for Ul 1950 Component Recognised Certification- 3W DIP Package- 4kVDC & 6kVDC Isolation- Regulated Output- Continuous Short Circiut Protection Auto-Restarting |
| AK4351VT | 18 BIT ADVANCED MULTI BIT 2CH DAC |
| AK4352 | 2V & LOW POWER MULTI-BIT DAC |
| AK4352VT | 2V & LOW POWER MULTI-BIT DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4348VF | 制造商:AKM 制造商全稱:AKM 功能描述:3.3V 192kHz 24-Bit 8-Channel DAC |
| AK4351 | 制造商:AKM 制造商全稱:AKM 功能描述:18 BIT ADVANCED MULTI BIT 2CH DAC |
| AK4351VT | 制造商:AKM 制造商全稱:AKM 功能描述:18 BIT ADVANCED MULTI BIT 2CH DAC |
| AK4351VTP-E2 | 制造商:AKM Semiconductor Inc 功能描述:AK4351VTP-E2 |
| AK4352 | 制造商:AKM 制造商全稱:AKM 功能描述:2V & LOW POWER MULTI-BIT DAC |
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