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): 14/20頁
文件大?。?/td> 167K
代理商: SM5841H
SM5841H
NIPPON PRECISION CIRCUITS—14
Audio Data Output (DOL, DOR, BCKO, WCKO, OFST)
The output data is in 16/18/20-bit serial, 8fs, simulta-
neous left and right-channel, 2s complement, MSB
first format.
A DC offset can be added to arithmetic data before
the data is output to reduce the D/A converter zero-
crossing distortion for very small input signals. The
offset added is approximately 0.8% of full-scale for
the corresponding output bit length, as shown below.
I
512 LSB for 16-bit output
I
2048 LSB for 18-bit output
I
8192 LSB for 20-bit output
The DC offset is added to the output when OFST is
HIGH. DC offset is OFF when OFST is LOW.
8fs serial data is output on independent DOL and
DOR channels, in sync with the falling edge of the
internal system clock and BCKO clock. The number
of BCKO bit clock pulses per word changes depend-
ing on the output bit length selected (16/18/20 bits).
Consequently, output data is latched into the D/A
converter internal register on the falling of the edge
of an output word clock WCKO, which has timing
independent of the number of output bits as specified
in the following table.
Parameter
Symbol
CKSL = HIGH
CKSL = LOW
Bit clock rate
T
B
t
SYS
(1/192fs)
t
SYS
(1/256fs)
Data word length
T
DW
24T
B
32T
B
The number of output bits is determned by the output bit length selected.
Figure 4. 8fs data output timing (CKSL = HIGH)
The number of output bits is determned by the output bit length selected.
Figure 5. 8fs data output timing (CKSL = LOW)
1 2
4
3
5
11 12
14
13
15 16 17
19
18
20
1 2
4
3
6TB
18TB
T
DW
= 24TB
System Clock
BCKO
DOL or DOR
WCKO
TB
1 2
4
3
5
11 12
14
13
15 16 17
19
18
20
1 2
4
3
6TB
26TB
T
DW
= 32TB
System Clock
BCKO
DOL or DOR
WCKO
TB
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