Gennum’s 3G-SDI SerDes (Serializer and Deserializer) chipsets are fast becoming the number 1 choice of professional video and broadcast equipment manufacturers looking to transmit 1080p 50/60Hz data rates utilizing the most complete video processing features available on the market today. Improved jitter attenuation means that jitter margins allow for more tolerance with cascaded SDI signals. Longer cable distances at 3G-SDI data rates are now possible and have overall better performance with reduced bit error rates.
GS2971 3G-SDI Deserializer with Integrated Adaptive Cable Equalizer
- SMPTE 424M, SMPTE 425M (Level A&B), SMPTE 292M and SMPTE 259M-C compliant.
- Supports date rates from 1.0Gbps to 2.97Gbps and DVB-ASI at 270Mbps.
- Integrated adaptive cable equalizer capable of supporting Belden1694A cable:
- 150m at 3G data rates
- 250m at HD data rates
- 480m at SD data rates
- Integrated reclocker with low phase noise VCO.
- Integrated audio de-embedder for 8 channels of 48kHz audio with clock generator.
- Ancillary data extraction.
- Optional Level B to A conversion.
- Comprehensive error detection and correction features.
- SPI host interface.
- Parallel data bus interface of 10 or 20-bits wide.
- Typical power consumption of 545mW.
- Digital supply voltage of 1.2V for the core and analog supply voltages of 1.2V and 3.3V.
- Temperature range -20 to +85 ºC.
- 100 pin BGA package (11x11mm).
- SMPTE 425M Level A supports fast progressive formats for 1080p 50/59.94/60. Level B supports the legacy dual link HD format (SMPTE 372M) over a single cable.
GS2971 3G-SDI Deserializer with Integrated Adaptive Cable Equalizer Key Value Added Advantages
- Gennum’s GS2971 offers integrated adaptive equalization – no need for external equalizer - save power and cost.
- Gennum offer de-embedded audio functionality such as AES, I2S and serial audio formats.
- Integrated PLL with narrow loop bandwidth meets the SMPTE output jitter specs and are 100% production tested - not just based on product characterization.
- The SMPTE output jitter requirements are <= 0.3 UI and IJT >= 0.5UI. The GS2971 has output jitter = 0.2 UI max and IJT = 0.7 UI min.
- 1.8V I/O helps to reduce EMI with SSTL resistors that can be controlled to reduce the speed of the rising and falling signal edges.
- Not all system designers want to go down the FPGA integration route when it comes to on-chip SerDes capabilities despite the likes of Xilinx, Altera and Lattice all offering a variety of embedded SerDes solutions. Gennum’s standalone SerDes chipsets still offer a far lower entry cost solution with far better signal integrity performance over backplanes and cables:
- GS2972/GS2970 SD/HD/3G Serializer/Deserializer with Embedded Audio support.
- GS2962/GS2960 SD/HD/3G Serializer/Deserializer without Embedded Audio support.
- GS2961 SD/HD/3G Deserializer with Integrated Cable Equalizer and without Embedded Audio support.
- GS2971 SD/HD/3G Deserializer with Integrated Cable Equalizer and with Embedded Audio support.