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GS9090B Datasheet(PDF) 56 Page - Gennum Corporation

Part # GS9090B
Description  GenLINX짰 III 270Mb/s Deserializer for SDI
Download  71 Pages
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Manufacturer  GENNUM [Gennum Corporation]
Direct Link  http://www.gennum.com
Logo GENNUM - Gennum Corporation

GS9090B Datasheet(HTML) 56 Page - Gennum Corporation

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GS9090B Data Sheet
40749 - 2
January 2007
56 of 71
3.11.1 Parallel Data Bus Output Buffers
The parallel data outputs of the GS9090B are driven by high-impedance buffers
that support both LVTTL and LVCMOS levels. These buffers use either +1.8V or
+3.3V, supplied at the IO_VDD and IO_GND pins. When interfacing with +5V logic
levels, the IO_VDD pins should be supplied with +3.3V. For a low power
connection, the IO_VDD pins may be connected to +1.8V.
All output buffers, including the PCLK output, will be in a high-impedance state
when the RESET signal is asserted LOW.
3.11.2 Parallel Output in SMPTE Mode
When the device is operating in SMPTE mode (see Section 3.6), SMPTE data is
output on the DOUT[9:0] pins.
3.11.3 Parallel Output in DVB-ASI Mode
When operating in DVB-ASI mode (see Section 3.7), the decoded 8-bit data words
will be presented on DOUT[7:0]. DOUT7 = HOUT is the most significant bit of the
decoded transport stream data and DOUT0 = AOUT is the least significant bit.
DOUT9 will be configured as the DVB-ASI status signal WORDERR and DOUT8
as SYNCOUT. See Section 3.7.2 for a description of these DVB-ASI specific output
signals.
3.11.4 Parallel Output in Data-Through Mode
When operating in Data-Through mode (see Section 3.8), the GS9090B presents
data to the output data bus without performing any decoding, descrambling, or
word-alignment.
3.12 Programmable Multi-Function Outputs
The GS9090B has a 4-pin multi-function output port, STAT[3:0]. Each pin can be
programmed to output one of the following signals: H, V, F, FIFO_LD, ANC,
EDH_DETECT, FIFO_FULL, and FIFO_EMPTY.
Table 3-17: Output Signals Available on Multi-Function Output Ports
Output Status Signal
Reference
H
Section 3.6.4
V
Section 3.6.4
F
Section 3.6.4
FIFO_LD
Section 3.9.1
ANC
Section 3.9.2
EDH_DETECT
Section 3.9.3


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