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參數(shù)資料
| 型號： | AK4121 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | ASYNCHRONOUS SAMPLE RATE CONVERTER |
| 中文描述： | 異步采樣率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 14/19頁 |
| 文件大?。?/td> | 196K |
| 代理商： | AK4121 |
ASAHI KASEI
[AK4121]
MS0191-E-03
2004/08
- 14 -
Grounding and Power Supply Decoupling
The AK4121 requires careful attention to power supply and grounding arrangements. VDD are usually supplied from
the system’s analog supply.
AVSS and DVSS of the AK4121 must be connected to the 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 especially a 0.1
μ
F ceramic capacitor for high frequency noise should be
placed as near to VDD as possible.
PLL Loop-Filter
The C1 (4.7
μ
F) and R (560ohms) should be connected in series and attached between FILT pin and AVSS in parallel
with C2 (1.0nF). Care should be taken to ensure that noise on the FILT pin is minimized.
FILT
AK4121
C1
R
AVSS
C2
Parameter
R
C1
C2
fsi range
Recommended value 1
560ohm +/
8%
4.7
μ
F +/
40%
1.0nF +/
40%
8k ~ 96kHz
Note: Those recommended values include temperature dependence.
Recommended value 2
1.2kohm +/
8%
2.2
μ
F +/
40%
2.2nF +/
40%
16k ~ 96kHz
Figure 7. PLL Loop-Filter
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AK4121A | 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Sample Rate Converter |
| AK4121A_10 | 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Sample Rate Converter |
| AK4121AVF | 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Sample Rate Converter |
| AK4122 | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit 96kHz SRC with DIR |
| AK4122_1 | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit 96kHz SRC with DIR |
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