參數(shù)資料
型號(hào): TDA9870A
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Digital TV Sound Processor DTVSP
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP64
封裝: SHRINK, PLASTIC, DIP
文件頁(yè)數(shù): 4/88頁(yè)
文件大?。?/td> 362K
代理商: TDA9870A
1998 Aug 10
4
Philips Semiconductors
Product specification
Digital TV Sound Processor (DTVSP)
TDA9870A
2.1.1
A
NALOG
2-
CARRIER SYSTEMS
Table 1
Frequency modulation
Table 2
Identification for A2 systems
STANDARD
SOUND
SYSTEM
CARRIER
FREQUENCY
(MHz)
FM DEVIATION (kHz)
MODULATION
BANDWIDTH/
DE-EMPHASIS
(kHz/
μ
s)
15/75
15/75 (Korea)
15/50
15/50
15/50
15/50
NOM.
MAX.
OVER
SC1
SC2
M
M
mono
A2+
A2
mono
A2
A2*
4.5
15
15
27
27
27
27
25
25
50
50
50
50
50
50
80
80
80
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
6.5/6.258
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%
117.5 Hz
133
line frequency
=
149.9 Hz
105
line frequency
=
274.1 Hz
line f57
=
276.0 Hz
line f57
=
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