GS12281 12G UHD-SDI Re-timing Cable Driver . Key Features Applications Dual non-inverted 75 cable interface with on-chip Next Generation 12G UHD-SDI infrastructures designed to termination support UHDTV1, UHDTV2, 4K D-Cinema and 3D HFR and HDR production image formats. Typical applications: Cameras, SMPTE ST 2082-1, ST 2081-1, ST 424, ST 292-1 and ST 259 Switchers, Distribution Amplifiers and Routers. compliant input/output Multi-standard operation from 1Mb/s to 11.88Gb/s In addition to standard SMPTE rates, the device also supports Description re-timing of DVB-ASI at 270Mb/s, and MADI at 125Mb/s. The GS12281 is a low-power, multi-rate, re-timing cable driver 3D Input Signal Eye Monitor supporting rates up to 12G UHD-SDI. It is designed to receive PRBS generator and checker 100 differential input signals, automatically recover the embedded clock from the digital video signal and re-time the Cable driver mode features: incoming data, and transmit the re-timed signal over 75 coaxial Wide swing control cables. The 100 trace input supports up to 17dB of insertion loss. Pre-emphasis to compensate for significant insertion loss The integrated eye monitor provides non-disruptive mission between device output and BNC mode analysis of the post equalized input signal. The 256x128 Automatic/manual output slew rate control resolution scan matrix allows accurate signal analysis to speed up Manual or automatic re-timer bypass prototyping and enable field analysis. Manual or automatic Mute or disable on LOS Built in macros enable customizable cross section analysis and Trace equalizer features: quick horizontal and vertical eye opening measurements. Integrated 100, differential input termination With high phase consistency between scans and configurable Automatic power down on loss of signal space and time thresholds, algorithms can be deployed in the Adjustable carrier detect threshold field to analyze long term signal quality variation (Bathtub Plot) to reduce costly system installation debug time for intermittent DC-coupling from 1.2V to 2.5V CML logic errors. The two cable drivers have highly configurable Trace equalization to compensate for up to 20 FR4 at pre-emphasis and swing controls to compensate for long trace 11.88Gb/s and connector losses. Additionally, automatic and user selectable Automatic input offset compensation output slew rate control is provided for each cable driver output. CDR features: The GS12281 is pin compatible with the GS12181 single input, Manual or automatic rate modes and the GS12182 dual input 12G UHD-SDI Multi-rate Re-timing Wide Loop bandwidth control Cable Drivers, the GS12081 12G UHD-SDI Multi-rate Cable Driver, Re-timing at the following data rates: 125Mb/s, 270Mb/s, as well as the GS3281 3G SDI Multi-rate Re-timing Cable Driver. 1.485Gb/s, 2.97Gb/s, 5.94Gb/s, and 11.88Gb/s. This Note: For the GS12281 to be pin compatible with the GS12182, includes the f/1.001 rates. careful design considerations are required. Contact for your local Semtech FAE for details. Additional Features Single 1.8V power supply for analog and digital core 2.5V or 3.3V for cable driver output supply GSPI serial control and monitoring interface Four configurable GPIO pins for control or status monitoring Wide operating temperature range: -40C to +85C Small 6mm x 4mm 40-pin QFN Pin compatible with the GS12181, GS12182, GS12081, and GS3281 Pb-free/Halogen-free/RoHS and WEEE compliant package GS12281 1 of 97 www.semtech.com Final Data Sheet Rev.8 Semtech PDS-061385 August 2018 Proprietary & ConfidentialSDOUT GPIO1 GPIO2 GPIO3 GPIO4 CS SCLK SDIN Control & Status SDO0 Cable Driver Signal Selector PRBS Generator Data: (Retime/Bypass) SDO0 PRBS Generator Swing and Pre-emphasis Control Trace Equalizer DDI CDR SDO1 Cable Driver Signal Selector Data: (Retime/Bypass) PRBS SDO1 Checker PRBS Generator Swing and Pre-emphasis Control EYE Monitor GS12281 Functional Block Diagram GS12281 2 of 97 www.semtech.com Final Data Sheet Rev.8 Semtech Proprietary & Confidential PDS-061385 August 2018 Slicer