GS2960A
The GS2960A is a multi-rate SDI receiver which includes complete SMPTE processing, as per SMPTE 425M, 292M and SMPTE 259M-C.
The SMPTE processing features can be bypassed to support signals with other coding schemes.
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 GS2960A 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.
Both SMPTE 425M Level A and Level B inputs are supported with optional conversion from Level B to Level A for 1080p 50/60 4:2:2 10-bit.
In DVB-ASI mode, 8b/10b decoding is applied to the received data stream.
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.
In Data-Through mode all forms of SMPTE and DVB-ASI decoding are disabled, and the device can be used as a simple serial to parallel converter.
Parallel data outputs are provided in 20-bit or 10-bit format for 3Gb/s, HD and SD video rates, with a variety of mapping options. As such, this parallel bus can interface directly with video processor IC's, and can be multiplexed onto 10 bits for a low pin count interface.
Features
- Integrated reclocker with low phase noise, integrated, VCO
- Ancillary data extraction
- Comprehensive error detection and correction features
- Serial digital reclocked, or non-reclocked output
- Operation at 2.970Gb/s, 2.970/1.001Gb/s, 1.485Gb/s, 1.485/1.001Gb/s and 270Mb/s
- Supports SMPTE 425M (Level A and Level B), SMPTE 424M, SMPTE 292M, SMPTE 259M-C and DVB-ASI
- Optional conversion from SMPTE 425M Level B to Level A for 1080p 50/60 4:2:2 10-bit
- Parallel data bus selectable as either 20-bit or 10-bit
- Output H, V, F or CEA 861 Timing Signals
- 1.2V digital core power supply, 1.2V and 3.3V analog power supplies, and selectable 1.8V or 3.3V I/O power supply
- GSPI host interface
- -20°C to +85°C operating temperature range
- Low power operation (320 mW typical)
- Small 11mm x 11mm 100-ball BGA package
- Pb-free and ROHS compliant
- Monitors
- Camera control units
- Multiviewers
- Production switchers
- Master control switchers
- VTRs
- Video servers
- Encoders/decoders
- Up/down/cross converters
- Audio de-embedders
- Format detectors
- Test and measurement equipment
Applications
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(-40°C to +85°C / 4000 cycles)
(50°C, 4000 Hrs)
Datasheets & Documentation
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I designed my first product using the Serial Digital Interface (SDI) back in 1996, and little did I know that this fledgling coax-based video interface standard would dominate my career for the next 20+ years. Back then, SDI was limited to carrying Standard Definition (SD) digital video at 270 Megabits per second (Mbps), but would evolve to higher and higher data rates to carry High Definition 720p, 1080i and 1080p, and most recently 4K Ultra High Definition (UHD) video, at cable lengths that were not thought possible. The convenience of a low cost single conductor coaxial copper cable, capable of carrying 4K video up to 100m has meant that SDI has become the de facto AV connectivity of choice in markets such as broadcast, Pro AV, medical and surveillance.
Serial Digital Interface Is Dead: Long Live SDI!
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