參數(shù)資料
型號: TDA9875
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Digital TV Sound Processor DTVSP
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP64
文件頁數(shù): 66/92頁
文件大?。?/td> 279K
代理商: TDA9875
1998 Feb 13
66
Philips Semiconductors
Preliminary specification
Digital TV Sound Processor (DTVSP)
TDA9875
10.3.31 F
EATURE INTERFACE CONFIGURATION REGISTER
10.3.31.1 Definition
Table 73
Subaddress 36 (notes 1 and 2)
Notes
1.
2.
3.
4.
5.
6.
X = don’t care.
The default setting at power-up is 00000000.
System clock frequency select; see Table 74.
System clock output on/off; see Table 75.
Serial output format; see Table 75.
I
2
S-bus outputs on/off; see Table 75.
Table 74
System clock frequency select
Table 75
Description of Table 73
MSB
LSB
B7
X
B6
X
B5
X
B4
B3
B2
B1
B0
SYSCL1
(3)
SYSCL0
(3)
SYSOUT
(4)
I
2
SFORM
(5)
I
2
SOUT
(6)
B4
B3
SYSCLK OUTPUT
FREQUENCY (MHz)
0
0
1
1
0
1
0
1
256f
s
384f
s
512f
s
768f
s
8.192
12.288
16.384
24.576
NAME
I
2
SOUT
HIGH/LOW
FUNCTION
HIGH
Enables the output of serial audio data (2 pins) plus serial bit clock and word select in a
format determined by the I
2
SFORM bit. The TDA9875 is then an I
2
S-bus master.
the outputs mentioned will be 3-stated, thereby improving the EMC performance
an MSB-aligned, MSB-first output format is selected, i.e. a level change at the word
select pin indicates the beginning of a new audio sample
the standard I
2
S-bus output format is selected
enables the output of a system (or master) clock signal at pin SYSCLK
the output will be off, thereby improving the EMC performance
LOW
HIGH
I
2
SFORM
LOW
HIGH
LOW
SYSOUT
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