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GS3471-IBE3

Multi-rate SDI Receiver with Complete SMPTE Processing

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Description

The GS3471 is a multi-rate SDI Receiver with complete SMPTE processing. The SMPTE processing features can be bypassed to support signals with other coding schemes. Multi-link UHD can be supported when multiple GS3471 devices are used.

The GS3471 integrates Semtech's adaptive cable equalizer technology, achieving unprecedented cable lengths and jitter tolerance. The device features a dual input buffer with a 2x2 MUX. The 2x2 MUX can select between either input for de-serialization and can route either of the two inputs to the serial loopback independently (reclocked or non-reclocked). In addition, the integrated Re-timer with an internal VCO provides a wide Input Jitter Tolerance (IJT).

Configurable Power-down modes are available and allows for increased flexibility. Each Power-down mode enables power savings to a varying degree by selectively enabling or disabling key features. Some of the options available in Power-down mode are CSR access, PCLK, retimed SDO loop-through output, and non-retimed SDO loop-through output. Enabling or disabling each of these options will offer power consumption levels to suit the application's requirements.

The device has three other basic modes of operation which include:

  • SMPTE mode
  • DVB-ASI mode
  • Data-Through mode

The GS3471 includes an audio de-embedder and audio clocks are internally generated. Up to eight channels (two audio groups) of serial digital audio may be extracted from the video data stream, in accordance with SMPTE ST 272-C and SMPTE ST 299.

New features and benefits vs. the existing solution:

  • GS3471 has smaller package size, 9x9mm 100-ball BGA at 0.8mm ball pitch vs. GS2971A 11x11mm 100-ball BGA at 1mm ball pitch
  • GS3471 has less power consumption, typical 300mW vs. GS2970A 545mW typical
  • GS3471 fully supports 2K and multi-link UHD
  • GS3471 has two serial input ports and one internal 2x2 mux. The deserialized signal and the loop-through signal can be independently selected. Note there is only one embedded cable EQ in the GS3471, and second input port requires an external cable EQ. The GS2971A has only one serial input
  • GS3471 integrates the latest high performance cable EQ technology, providing improved cable reach at all rates
  • Eight configurable power-saving modes vs. GS2971A one standby mode

Features


  • Operation at 2.970Gb/s, 2.970/1.001Gb/s, 1.485Gb/s, 1.485/1.001Gb/s, and 270Mb/s
  • Supports SMPTE ST 425 (Level A and Level B), SMPTE ST 424, SMPTE 292, SMPTE ST 259-C, and DVB-ASI
  • Integrated Adaptive Cable Equalizer
  • 2K and Multi-link UHD support
  • Configurable Power-down modes
  • Integrated Re-timer
  • Serial digital reclocked or non-reclocked loop-through output
  • Integrated audio de-embedder for 8 channels of 48kHz audio and audio clock generation
  • Ancillary data extraction
  • Parallel data bus selectable as either 20-bit or 10-bit, SDR or DDR rate
  • Comprehensive error detection and correction features
  • Dual serial digital input buffer with 2x2 MUX
  • Serial Loopback independently configurable to select either input
  • Performance optimized for 270Mb/s, 1.485Gb/s, and 2.97Gb/s
  • Typical equalized length of Belden 1694A cable up to:
    • 200m at 2.97Gb/s
    • 280m at 1.485Gb/s
    • 500m at 270Mb/s
  • Dual/Quad Link 3G-SDI support with multiple GS3471 devices
  • Output H, V, F, or CEA 861 timing signals
  • GSPI host interface
  • +1.2V digital core power supply, +1.2V and +1.8V analog power supplies, and selectable +1.8V or +2.5V I/O power supply
  • -20°C to +85°C operating temperature range
  • Low power operation — typically 300mW
  • Small 9mm x 9mm 100-ball BGA package (0.80mm Ball Pitch)
  • Pb-free and RoHS compliant

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