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參數資料
| 型號： | SM5842AP |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | High-Class Audio Multi-function Digital Filter |
| 中文描述： | 高級音頻多功能數字濾波器 |
| 文件頁數： | 13/23頁 |
| 文件大?。?/td> | 201K |
| 代理商： | SM5842AP |
SM5842AP/APT
NIPPON PRECISION CIRCUITS—13
Soft Muting
Muting of the left and right channel is controlled
independently by MUTEL and MUTER, respec-
tively. Muting is ON when MUTEL/MUTER is
HIGH, muting is OFF when MUTEL/MUTER is
LOW.
When MUTEL/MUTER goes HIGH, the attenuation
changes smoothly from 0 to
∞
dB in 512/fs, or
approximately 11.6 ms when fs = 44.1 kHz. When
MUTEL/MUTER goes LOW, muting is released and
the attenuation changes smoothly from
∞
to 0 dB,
again taking approximately 11.6 ms.
When RSTN goes LOW, the DOL and DOR outputs
go LOW, immediately muting the output signal.
Muting is released and timing is synchronized when
RSTN goes HIGH.
System Clock (XTI, XTO, CKO, CKSLN)
Two system clock frequencies, 384fs and 256fs, can
be used. An external clock source can be input on
XTI, or a crystal oscillator can be constructed by
connecting a crystal between XTI and XTO. The
system clock is also buffered and then output on
CKO. The system clock frequency selection and the
internal clock frequency are shown in table 2.
Table 2. System clock frequency select
Parameter
CKSLN
HIGH
LOW
XTI input clock frequency (f
XI
= 1/t
XI
)
384fs
256fs
CKO clock frequency
384fs
256fs
Internal clock frequency (t
SYS
)
2
×
t
XI
t
XI
Figure 2. Clock generator circuit
CKSLN
XTI
XTO
CKO
1 / 2
Internal system clock
(192fs or 256fs)
To timing controller
相關PDF資料 |
PDF描述 |
|---|---|
| SM5842APT | High-Class Audio Multi-function Digital Filter |
| SM5844 | Asynchronous Sample Rate Converter |
| SM5844AF | Asynchronous Sample Rate Converter |
| SM5847 | High-fidelity Digital Audio, Multi-function Digital Filter |
| SM5847AF | High-fidelity Digital Audio, Multi-function Digital Filter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| SM5843A | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Audio Multi-function Digital Filter |
| SM5843AP1 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Audio Multi-function Digital Filter |
| SM5843AS1 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Audio Multi-function Digital Filter |
| SM5844 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Asynchronous Sample Rate Converter |
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