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參數(shù)資料
| 型號(hào)： | GS9090 |
| 廠商： | Gennum Corporation |
| 英文描述： | GS9090 GenLINX-R III 270Mb/s Deserializer for SDI and DVB-ASI |
| 中文描述： | GS9090 GenLINX - R的第三270Mb / s的SDI和DVB解串器，意大利航天局 |
| 文件頁(yè)數(shù)： | 25/70頁(yè) |
| 文件大?。?/td> | 696K |
| 代理商： | GS9090 |
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GS9090 Data Sheet
28201 - 1
July 2005
25 of 70
3.5.3 Manual Mode
Recall that the GS9090 is in Manual mode when the AUTO/MAN input pin is set
LOW by the application layer. In this mode the SMPTE_BYPASS and DVB_ASI
pins become input signals, and the application layer determines the operating
mode of the device by setting these pins as shown in
Table 3-2
.
3.6 SMPTE Functionality
The GS9090 enters SMPTE mode once the device has detected SMPTE TRS sync
words and locked to the input data stream as described in
Lock Detect on page 22
.
The GS9090 will remain in SMPTE mode until such time that SMPTE TRS sync
words fail to be detected.
The lock detect block may also drop out of SMPTE mode under any of the following
conditions:
TRS word detection is a continuous process, and the device will identify both 8-bit
and 10-bit TRS words.
SMPTE_BYPASS is asserted LOW in Manual mode
RESET is asserted LOW
LOCKED is LOW (i.e. the device loses lock to the input signal)
In Auto mode, the GS9090 sets the SMPTE_BYPASS pin HIGH and the DVB_ASI
pin LOW to indicate that it has locked to a SMPTE input data stream. When
operating in Manual mode, the application layer must assert the DVB_ASI pin LOW
and the SMPTE_BYPASS pin HIGH in order to enable SMPTE operation.
Table 3-2: Manual Mode Input Status Signals
Pin Settings
Format
SMPTE_BYPASS
DVB_ASI
SD SMPTE
HIGH
LOW
DVB-ASI
X
HIGH
NOT SMPTE OR DVB-ASI
(Data-Through mode)*
LOW
LOW
*NOTE: See
Data-Through functionality on page 29
for more detail on Data-Through mode
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相關(guān)代理商/技術(shù)參數(shù) |
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| GS9090A | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GS9090A GenLINX-R III 270Mb/s Deserializer for SDI |
| GS9090A_10 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GenLINX III 270Mb/s Deserializer |
| GS9090ACNE3 | 制造商:Semtech Corporation 功能描述:270Mb/s Deserializer 56-Pin QFN EP 制造商:Semtech Corporation 功能描述:270Mb/s Deserializer for SDI & ASI |
| GS9090B | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GenLINX III 270Mb/s Deserializer for SDI |
| GS9090B_10 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GenLINX III 270Mb/s Deserializer for SDI |
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