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參數(shù)資料
| 型號： | SM5841H |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | Audio Multi-function Digital Filter |
| 中文描述： | 音頻多功能數(shù)字濾波器 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 167K |
| 代理商： | SM5841H |
SM5841H
NIPPON PRECISION CIRCUITS—15
System Reset and Output Muting (RST)
System reset
The SM5841H must be reset at power-ON by apply-
ing a LOW-level pulse on RST.
At system reset, the arithmetic and output timing
counters are reset on the next LRCI start edge, as
long as the CKI clock has already stabilized.
The power-ON reset pulse can be applied by a
microcontroller or, for systems where CKI and LRCI
are stable at power-ON, by connecting a 300 pF
capacitor between RST and VSS. For systems that do
not use a microcontroller, the capacitor must be cho-
sen such that the CKI and LRCI clocks fully stabilize
before RST goes from LOW to HIGH.
If the system clock is interrupted or is corrupted by
jitter, after power-ON reset and all internal timing is
synchronized, such that a timing error greater than
±3/8
×
f
LRCI
occurs, the internal timing is automati-
cally reset on the next LRCI start edge. This resyn-
chronization affects the internal operation and can
generate a momentary click noise output.
Output muting
When RST goes LOW, the DOL and DOR outputs
go LOW, immediately muting the output signal, and
they remain LOW for intervals in word units. Muting
is released and timing is synchronized on the 3rd ris-
ing edge of LRCI after RST goes HIGH. Note that
during muted output, the BCKO and WCKO clocks
do not stop.
Figure 6. System reset timing and output muting
LRCI
Internal reset
DOL
DOR
(L)
(L)
1
2
3
4
RST
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SM5841HP | Audio Multi-function Digital Filter |
| SM5841HS | Audio Multi-function Digital Filter |
| SM5842 | High-Class Audio Multi-function Digital Filter |
| SM5842AP | High-Class Audio Multi-function Digital Filter |
| SM5842APT | High-Class Audio Multi-function Digital Filter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM5841HP | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Audio Multi-function Digital Filter |
| SM5841HS | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Audio Multi-function Digital Filter |
| SM5842 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:High-Class Audio Multi-function Digital Filter |
| SM5842AP | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:High-Class Audio Multi-function Digital Filter |
| SM5842APT | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:High-Class Audio Multi-function Digital Filter |
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