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): 4/92頁
文件大?。?/td> 279K
代理商: TDA9875
1998 Feb 13
4
Philips Semiconductors
Preliminary specification
Digital TV Sound Processor (DTVSP)
TDA9875
2.1.1
A
NALOG
2-
CARRIER SYSTEMS
Table 1
Frequency modulation
Table 2
Identification for A2 systems
2.1.2
2-
CARRIER SYSTEMS WITH
NICAM
Table 3
NICAM
Note
1.
See “EBU specification”or equivalent specification.
STANDARD
SOUND
SYSTEM
CARRIER
FREQUENCY
(MHz)
FM DEVIATION
(kHz)
NOM./MAX./OVER
MODULATION
BANDWIDTH/
DE-EMPHASIS
(kHz/
μ
s)
15/75
15/75 (Korea)
15/50
15/50
15/50
15/50
SC1
SC2
M
M
mono
A2+
A2
mono
A2
A2*
4.5
15/25/50
15/25/50
27/50/80
27/50/80
27/50/80
27/50/80
mono
1
2
(L + R)
1
2
(L + R)
mono
1
2
(L + R)
1
2
(L + R)
4.5/4.724
5.5/5.742
6.0
6.5/6.742
6.5/6.26
1
2
(L
R)
R
R
R
B/G
I
D/K
D/K
PARAMETER
A2/A2*
A2+ (KOREA)
Pilot frequency
Stereo identification
frequency
54.6875 kHz = 3.5
×
line frequency
55.0699 kHz = 3.5
×
line frequency
Dual identification frequency
AM modulation depth
50%
50%
STANDARD
SC1
SC2
(MHz)
NICAM
DE-EMPHASIS
ROLL-OFF
(%)
NICAM
CODING
FREQUENCY
(MHz)
TYPE
MODULATION
INDEX (%)
NOM/MAX.
DEVIATION
(kHz)
NOM./MAX.
B/G
I
D/K
5.5
6.0
6.5
FM
FM
FM
27/50
27/50
27/50
5.85
6.552
5.85
J17
J17
J17
40
100
40
note 1
note 1
not yet
defined
note 1
L
6.5
AM
54/100
5.85
J17
40
117.5 Hz
133
pilot frequency
=
149.9 Hz
105
pilot frequency
=
274.1 Hz
pilot fr57
=
276.0 Hz
pilot fr57
=
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