參數資料
型號: GS9092-CNE3
廠商: Gennum Corporation
英文描述: GS9092 GenLINX-R III 270Mb/s Serializer for SDI and DVB-ASI
中文描述: GS9092 GenLINX - R的第三270Mb / s的串行SDI和DVB - ASI在內
文件頁數: 19/58頁
文件大?。?/td> 608K
代理商: GS9092-CNE3
GS9092 Data Sheet
28202 - 2
September 2005
19 of 58
3. Detailed Description
Functional Overview
Parallel Data Inputs
Internal FIFO Operation
SMPTE Mode
DVB-ASI Mode
Data-Through Mode
Additional Processing Functions
Parallel-to-Serial Conversion
Serial Digital Data PLL
Serial Digital Output
Programmable Multi-function I/O
GS9092 Low Latency Mode
GSPI Host Interface
JTAG Operation
Device Power Up
3.1 Functional Overview
The GS9092 is a 270Mb/s serializer with an internal FIFO and a programmable
multi-function I/O port. The device has 3 different modes of operation which must
be set by the application layer through external device pins.
When SMPTE mode is enabled, the device will accept 10-bit multiplexed SMPTE
compliant data at 27MHz. The device's additional processing features are also
enabled in this mode.
In DVB-ASI mode, the GS9092 will accept an 8-bit parallel DVB-ASI compliant
transport stream. The serial output data stream will be 8b/10b encoded and
padded with K28.5 fill characters.
The GS9092's third mode allows for the serializing of data not conforming to
SMPTE or DVB-ASI streams.
The serial digital outputs feature a high impedance mode and adjustable signal
swing.
In the digital signal processing core, several data processing functions are
implemented including SMPTE 352M and EDH data packet generation and
insertion, and automatic video standards detection. These features are all enabled
by default, but may be individually disabled via internal registers accessible
through the GSPI host interface.
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