- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385344 > GS9090 (Gennum Corporation) GS9090 GenLINX-R III 270Mb/s Deserializer for SDI and DVB-ASI PDF資料下載
參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 29/70頁 |
| 文件大小： | 696K |
| 代理商： | GS9090 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當(dāng)前第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁
GS9090 Data Sheet
28201 - 1
July 2005
29 of 70
3.7 DVB-ASI Functionality
The GS9090 enters DVB-ASI mode once the device has detected 32 consecutive
DVB-ASI words without a single word or disparity error being generated. The
device will remain in DVB-ASI mode until 32 consecutive DVB-ASI words or
disparity errors are detected, or until SMPTE TRS ID words have been detected.
The lock detect block may also drop out of DVB-ASI mode under the following
conditions:
K28.5 sync patterns in the received DVB-ASI data stream will be detected by the
device in either inverted or non-inverted form.
RESET is asserted LOW
Both AUTO/MAN and DVB_ASI are asserted LOW
LOCKED pin is LOW (i.e. the device loses lock to the input signal)
In Auto mode, the GS9090 sets the SMPTE_BYPASS pin LOW and the DVB_ASI
pin HIGH to indicate that it has locked to a DVB-ASI input data stream. When
operating in Manual mode, the application layer must set the DVB_ASI pin HIGH
to enable DVB-ASI operation. The SMPTE_BYPASS pin will be ignored.
3.7.1 DVB-ASI 8b/10b Decoding
After serial-to-parallel conversion, the internal 10-bit data bus is fed to the DVB-ASI
8b/10b decode and word alignment block. The function of this block is to word align
the data to the K28.5 sync characters, and 8b/10b decode and bit-swap the data
to achieve bit alignment with the data outputs.
The extracted 8-bit data will be presented to DOUT [7:0], bypassing all internal
SMPTE mode data processing.
3.7.2 Status Signal Outputs
In DVB-ASI mode, the DOUT9 and DOUT8 pins will be configured as DVB-ASI
status signals WORDERR and SYNCOUT respectively.
SYNCOUT will be HIGH whenever a K28.5 sync character is present on the output.
WORDERR will be HIGH whenever the device has detected an illegal code word
or there is a running disparity error.
3.8 Data-Through functionality
The GS9090 may be configured by the application layer to operate as a simple
serial-to-parallel converter. In this mode, the device presents data to the output
data bus without performing any decoding, descrambling, or word-alignment.
Data-Through functionality is enabled only when the application layer sets the
AUTO/MAN, SMPTE_BYPASS, and DVB_ASI input pins LOW. Under these
conditions, the lock detect block allows 270Mb/s input data not conforming to
SMPTE or DVB-ASI streams to be reclocked and deserialized. If the device is in
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GS9090-CNE3 | GS9090 GenLINX-R III 270Mb/s Deserializer for SDI and DVB-ASI |
| GS9092A | GS9092A GenLINX-R III 270Mb/s Serializer for SDI and DVB-ASI |
| GS9092ACNE3 | GS9092A GenLINX-R III 270Mb/s Serializer for SDI and DVB-ASI |
| GS9092 | GS9092 GenLINX-R III 270Mb/s Serializer for SDI and DVB-ASI |
| GS9092-CNE3 | GS9092 GenLINX-R III 270Mb/s Serializer for SDI and DVB-ASI |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。