參數(shù)資料
型號(hào): MSP3455G
廠商: Electronic Theatre Controls, Inc.
英文描述: MSP 34x5G Multistandard Sound Processor Family
中文描述: 中型34x5G多標(biāo)準(zhǔn)聲音處理器系列
文件頁(yè)數(shù): 74/98頁(yè)
文件大小: 1541K
代理商: MSP3455G
MSP 34x5G
PRELIMINARY DATA SHEET
74
Micronas
5.2. A2 Systems
Table 5
3:
Key parameters for A2 Systems of Standards B/G, D/K, and M
Characteristics
Sound Carrier FM1
Sound Carrier FM2
TV-Sound Standard
B/G
D/K
M
B/G
D/K
M
Carrier frequency in MHz
5.5
6.5
4.5
5.7421875
6.2578125
6.7421875
5.7421875
4.724212
Vision/sound power difference
13 dB
20 dB
Sound bandwidth
40 Hz to 15 kHz
Preemphasis
50
μ
s
75
μ
s
50
μ
s
75
μ
s
Frequency deviation (nom/max)
±
27
50 kHz
±
17
25 kHz
±
27
50 kHz
±
15
25 kHz
Transmission Modes
Mono transmission
mono
mono
Stereo transmission
(L
+
R)/2
(L
+
R)/2
R
(L
R)/2
Dual sound transmission
language A
language B
Identification of Transmission Mode
Pilot carrier frequency
54.6875 kHz
55.0699 kHz
Max. deviation portion
±
2.5 kHz
Type of modulation / modulation depth
AM / 50%
Modulation frequency
mono: unmodulated
stereo: 117.5 Hz
dual:
274.1 Hz
149.9 Hz
276.0 Hz
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