參數(shù)資料
型號: GS1582
廠商: Gennum Corporation
英文描述: IC,MC14490P
中文描述: 多速率的電纜驅(qū)動器,音頻多路復用器和ClockCleaner⑩串行
文件頁數(shù): 25/114頁
文件大小: 1224K
代理商: GS1582
GS1582 Data Sheet
40117 - 1 November 2007
25 of 114
4. Detailed Description
4.1 Functional Overview
The GS1582 is a multi-rate serializer with an integrated cable driver and embedded
audio multiplexer. When used in conjunction with the external GO1555 Voltage
Controlled Oscillator, a transmit solution at 1.485Gb/s, 1.485/1.001Gb/s or
270Mb/s is realized.
The device has three basic modes of operation that must be set through external
device pins; SMPTE mode, DVB-ASI mode, and Data-Through mode.
In SMPTE mode, the device will accept 10-bit multiplexed or 20-bit demultiplexed
SMPTE compliant data at both HD and SD signal rates. By default, the device’s
additional processing features, including audio embedding, will be enabled in this
mode.
In DVB-ASI mode, the GS1582 will accept an 8-bit parallel DVB-ASI compliant
transport stream on DIN[17:10]. The serial output data stream will be 8b/10b
encoded with stuffing characters added as per the standard.
Data-Through mode allows for the serializing of data not conforming to SMPTE or
DVB-ASI streams. No additional processing will be done in this mode.
In Standby mode, the device power consumption will be reduced.
The serial digital output features a high impedance mode and adjustable signal
swing. The output slew rate is automatically set by the SD/HD pin setting.
GS1582 provides several data processing functions including generic ANC
insertion, SMPTE 352M and EDH data packet generation and insertion, automatic
video standards detection, and TRS, CRC, ANC data checksum, and line number
calculation and insertion. These features are all enabled/disabled collectively using
the external IO processing pin, but may be individually disabled via internal
registers accessible through the GSPI host interface.
Finally, the GS1582 contains a JTAG interface for boundary scan test
implementations.
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