參數資料
型號: MSP3445G
廠商: Electronic Theatre Controls, Inc.
英文描述: MSP 34x5G Multistandard Sound Processor Family
中文描述: 中型34x5G多標準聲音處理器系列
文件頁數: 91/98頁
文件大小: 1541K
代理商: MSP3445G
PRELIMINARY DATA SHEET
MSP 34x5G
Micronas
91
6.7. Demodulator Source Channels in Manual Mode
6.7.1. Terrestric Sound Standards
Table 6
17 shows the source channel assignment of
the demodulated signals in case of manual mode for
all terrestric sound standards. See Table 2
2 for the
assignment in the Automatic Sound Select mode. In
manual mode for terrestric sound standards, only two
demodulator sources are defined.
6.7.2. SAT Sound Standards
Table 6
18 shows the source channel assignment of
the demodulated signals for SAT sound standards.
6.8. Exclusions of Audio Baseband Features
In general, all functions can be switched independently.
Two exceptions exist:
1. NICAM cannot be processed simultaneously with
the FM2 channel.
2. FM adaptive deemphasis cannot be processed
simultaneously with FM-identification.
6.9. Compatibility Restrictions to MSP 34x5D
The MSP 34x5G is fully hardware compatible to the
MSP 34x5D. However, to substitute a MSP 34x5D by
the corresponding MSP 34x5G, the controller software
has to be adapted slightly:
1. The register FM-Matrix (00 0E
hex
low part) must be
changed from
no matrix (00
hex
)
to
sound A mono
(03
hex
)
during mono transmission of all TV-sound
standards (see also Table 6
17).
2. With the MSP 34x5G, the STANDARD SELECTION
initializes the FM-deemphasis, which is not the case
for the MSP 34x5D. So, if STANDARD SELECTION
is applied, this I
2
C instruction can be omitted.
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