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參數(shù)資料
| 型號(hào)： | AK4121A |
| 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)： | 15/19頁 |
| 文件大小： | 353K |
| 代理商： | AK4121A |
[AK4121A]
■
Jitter Tolerance
Figure 12 shows the jitter tolerance to ILRCK. The jitter quantity is defined by the jitter frequency and the jitter
amplitude shown in Figure 12. When the jitter amplitude is 0.01UIpp or less, the AK4121A operates normally
regardless of the jitter frequency.
AK4121A Jitter Tolerance
(1)
Normal operation
(2)
There is a possibility that the distortion degrades. (It may degrade up to about
50dB.)
(3)
There is a possibility that the output data is lost.
Note 14. The jitter amplitude for 1UI (Unit Interval) is one cycle of ILRCK. When FSI = 48kHz, 1UI is 1/48kHz =
20.8
μ
s.
Figure 12. Jitter Tolerance
■
Tracking to the Input Sampling Frequency
When the ILRCK is generated by an external PLL, it may take a time to settle after changing the input sampling
frequency because the response of an external PLL to the frequency change is slow. In case of the AK4121, the output
data becomes incorrect when the speed of the frequency change exceeds 0.14%/sec. The AK4121A operates normally
up to 23%/sec speed and the output data becomes incorrect at the speed of the frequency change over 23%/sec.
0.00
0.01
0.10
1.00
10.00
1
10
100
1000
10000
Jitter Frequency [Hz]
A
(3)
(2)
(1)
MS0337-E-02
2007/07
- 15 -
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4121AVF | Asynchronous Sample Rate Converter |
| AK4121 | ASYNCHRONOUS SAMPLE RATE CONVERTER |
| AK4125VF | 192kHz / 24Bit High Performance Asynchronous SRC |
| AK4126VQ | 6ch 192kHz / 24-Bit Asynchronous SRC |
| AK4126 | digital sample rate converter. |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| AK4122A | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit 96kHz SRC with DIR |
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