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MSP44X8G 参数 Datasheet PDF下载

MSP44X8G图片预览
型号: MSP44X8G
PDF下载: 下载PDF文件 查看货源
内容描述: 多标准音频处理器 [Multistandard Sound Processor]
分类和应用:
文件页数/大小: 85 页 / 653 K
品牌: MICRONAS [ MICRONAS ]
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PRELIMINARY DATA SHEET
MSP 44x8G
Table 2–1:
Performed actions of the Automatic Sound Selection
Selected TV Sound Standard
B/G-FM, D/K-FM, M-Korea,
and M-Japan
B/G-NICAM, L-NICAM, I-NICAM,
and D/K-NICAM
Performed Actions
Evaluation of the identification signal and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2. Identification is acquired after 500 ms.
Evaluation of NICAM-C-bits and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2. NICAM detection is acquired within 150 ms.
In case of bad or no NICAM reception, the MSP switches automatically to FM/AM mono and switches
back to NICAM if possible. A hysteresis prevents periodical switching.
B/G-FM, B/G-NICAM
or
D/K1-FM, D/K2-FM, D/K-NICAM
Automatic searching for stereo/bilingual-identification in case of mono transmission. Automatic and non-
audible changes between Dual-FM and FM-NICAM standards while listening to the basic FM-Mono sound
carrier.
Example: If starting with B/G-FM-Stereo, there will be a periodical alternation to B/G-NICAM in the
absence of FM-Stereo/Bilingual or NICAM-identification. Once an identification is detected, the MSP
keeps the corresponding standard.
Evaluation of the pilot signal and automatic switching to mono or stereo. Preparing four demodulator
source channels according to Table 2–2. Detection of the SAP carrier. Pilot detection is acquired after
200 ms.
In the absence of SAP, the MSP switches to BTSC-Stereo if available. If SAP is detected, the MSP
switches automatically to SAP (see Table 2–2).
BTSC-STEREO, FM Radio
BTSC-SAP
Table 2–2:
Sound modes for the demodulator source channels with Automatic Sound Select
Source Channels in Automatic Sound Select Mode
Broadcasted
Sound
Standard
M-Korea
B/G-FM
D/K-FM
M-Japan
Selected
MSP Standard
Code
3)
02
03, 08
1)
04, 05, 0B
1)
30
Broadcasted
Sound Mode
FM/AM
(source select: 0)
Stereo or A/B
(source select: 1)
Stereo or A
(source select: 3)
Stereo or B
(source select: 4)
MONO
STEREO
BILINGUAL:
Languages A and B
Mono
Stereo
Left = A
Right = B
analog Mono
analog Mono
analog Mono
analog Mono
Mono
Stereo
Mono
Stereo
Left = Mono
Right = SAP
Left = Mono
Right = SAP
Mono
Stereo
Mono
Stereo
Left = A
Right = B
analog Mono
NICAM Mono
NICAM Stereo
Left = NICAM A
Right = NICAM B
Mono
Stereo
Mono
Stereo
Left = Mono
Right = SAP
Left = Mono
Right = SAP
Mono
Stereo
Mono
Stereo
A
analog Mono
NICAM Mono
NICAM Stereo
NICAM A
Mono
Stereo
Mono
Stereo
Mono
Mono
Mono
Stereo
Mono
Stereo
B
analog Mono
NICAM Mono
NICAM Stereo
NICAM B
Mono
Stereo
Mono
Stereo
SAP
SAP
Mono
Stereo
B/G-NICAM
L-NICAM
I-NICAM
D/K-NICAM
D/K-NICAM
(with high
deviation FM)
08, 03
2)
09
0A
0B, 04
2)
, 05
2)
0C
NICAM not available or
error rate too high
MONO
STEREO
BILINGUAL:
Languages A and B
20, 21
MONO
STEREO
20
BTSC
21
MONO+SAP
STEREO+SAP
MONO+SAP
STEREO+SAP
FM Radio
40
MONO
STEREO
1)
2)
3)
The Automatic Sound Select process will automatically switch to the mono compatible analog standard.
The Automatic Sound Select process will automatically switch to the mono compatible digital standard.
The MSP Standard Codes are defined in Table 3–7 on page 20.
Micronas
11