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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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GS1671 데이터시트(PDF) 2 Page - Semtech Corporation |
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GS1671 데이터시트(HTML) 2 Page - Semtech Corporation |
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2 / 130 page  GS1671 HD/SD SDI Integrated Receiver Data Sheet 53737 - 2 September 2012 2 of 130 Description The GS1671 is a multi-rate SDI integrated Receiver which includes complete SMPTE processing, as per SMPTE 292M and SMPTE 259M-C. The SMPTE processing features can be bypassed to support signals with other coding schemes. The GS1671 integrates Gennum's adaptive cable equalizer technology, achieving unprecedented cable lengths and jitter tolerance. It features DC restoration to compensate for the DC content of SMPTE pathological signals. The device features an Integrated Reclocker with an internal VCO and a wide Input Jitter Tolerance (IJT) of 0.7UI. A serial digital loop-through output is provided, which can be configured to output either reclocked or non-reclocked serial digital data. The serial digital output can be connected to an external cable driver. The device operates in one of four basic modes: SMPTE mode, DVB-ASI mode, Data-Through mode or Standby mode. In SMPTE mode (the default operating mode), the GS1671 performs full SMPTE processing, and features a number of data integrity checks and measurement capabilities. The device also supports ancillary data extraction, and can provide entire ancillary data packets through host-accessible registers. It also provides a variety of other packet detection and error handling features. All of these processing features are optional, and may be individually enabled or disabled through register programming. In DVB-ASI mode, sync word detection, alignment and 8b/10b decoding is applied to the received data stream. In Data-Through mode all forms of SMPTE and DVB-ASI processing are disabled, and the device can be used as a simple serial to parallel converter. The device can also operate in a lower power Standby mode. In this mode, no signal processing is carried out and the parallel output is held static. Parallel data outputs are provided in 20-bit or 10-bit format for HD and SD video rates, with a variety of mapping options. As such, this parallel bus can interface directly with video processor ICs, and output data can be multiplexed onto 10 bits for a low pin count interface. Up to eight channels (two audio groups) of serial digital audio may be extracted from the video data stream, in accordance with SMPTE 272M-C and SMPTE 299M. The output audio formats supported by the device include AES/EBU and I2S, and two other industry standard serial digital formats. A variety of audio processing features are provided to ease implementation. Audio clocks are internally generated and provided by the device. Application: Multi-format Audio De-embedder Module PCLK 10-bit GS1662 DAC Switch Logic & Drivers Analog Audio Outputs AES Audio Outputs AUDIO 1/ 2 AUDIO 3/ 4 AUDIO 5/ 6 AUDIO 7/ 8 Audio Clocks SD/HD-SDI GS1671 SD/HD-SDI Application: Multi-format Digital VTR/Video Server Storage: Tape/HDD/Solid State Audio Processor Video Processor 10-bit HV F/P CLK Audio Outputs V ideo Output Audio Clocks AUDIO 1/ 2 AUDIO 3/ 4 AUDIO 5/ 6 AUDIO 7/ 8 SD/HD-SDI GS1671 |
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