GS3241 3G-SDI Re-timing Adaptive Cable Equalizer Key Features Applications 75 cable input interface with on-chip termination SMPTE ST 424, SMPTE ST 292, SMPTE ST 259 interfaces requiring cable equalizing functionality. Typical applications: Cameras, SMPTE ST 424, ST 292-1 and ST 259 compliant input/output Switchers, Distribution Amplifiers and Routers. Multi-standard operation from 1Mb/s to 2.97Gb/s In addition to standard SMPTE rates, the device also supports re-timing of DVB-ASI at 270Mb/s, and MADI at 125Mb/s Description 3D Input Signal Eye Monitor The GS3241 is a low-power, multi-rate re-timing Cable Equalizer PRBS generator and checker supporting rates up to 3G -SDI. It is designed to equalize and restore signals received over 190m coaxial cable at 3G, Automatic cable equalizationtypical equalized cable lengths of Belden 1694A cable: compensate for DC content of SMPTE pathological signals, and re-time the incoming data. 190m at 2.97Gb/s The integrated eye monitor provides non-disruptive mission 260m at 1.485Gb/s mode analysis of the post equalized input signal. The 256x128 450m at 270Mb/s and 125Mb/s resolution scan matrix allows accurate signal analysis to speed up Cable equalizer features: prototyping and enable field analysis. Automatic power down on loss of signal Built in macros enable customizable cross section analysis and Programmable carrier detect with squelch threshold quick horizontal and vertical eye opening measurements. adjustment With high phase consistency between scans and configurable Programmable launch swing compensation for space and time thresholds, algorithms can be deployed in the non-compliant source field to analyse long term signal quality variation (Bathtub Plot) to Manual and automatic cable equalizer bypass reduce costly system installation debug time for intermittent errors. Trace driver features: The two independently controlled trace drivers feature highly Integrated 100, differential output termination configurable pre-emphasis and swing controls to compensate for Extends output DC-coupling support with 1.2V to 2.5V long trace and connector losses. The pre-emphasis pulse width output supply range can be optimized to compensate for perturbations to frequency Trace driver data output pre-emphasis to compensate for response of transmission lines due to vias connectors and stubs. up to 60 FR4 at 2.97Gb/s The GS3241 is pin compatible with the GS12141 and GS12241 Manual or automatic re-timer bypass single input, as well as the GS12142 dual input 12G UHD-SDI Manual or automatic mute or disable on LOS Multi-rate Re-timing Cable Equalizers. CDR features: Note: For the GS3241 to be pin compatible with the GS12142, Manual or automatic rate modes careful design considerations are required. Contact for your local Semtech FAE for details. Wide Loop bandwidth control Re-timing at the following data rates: 125Mb/s, 270Mb/s, 1.485Gb/s, and 2.97Gb/sthis includes the f/1.001 rates Additional Features Single 1.8V power supply for analog and digital core 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 Pb-free/Halogen-free/RoHS and WEEE compliant package Pin compatible with the GS12141, GS12142, and GS12241 GS3241 1 of 105 www.semtech.com Final Data Sheet Rev.4 Semtech PDS-061444 July 2018 Proprietary & ConfidentialSCLK SDIN SDOUT GPIO1 GPIO2 GPIO3 GPIO4 CS Control & Status DDO0 Signal Selector Trace Driver PRBS Generator Data: (Retime/Bypass) DDO0 PRBS Generator Swing and Pre-emphasis Control Cable Equalizer CDR SDI DDO1 Trace Driver Signal Selector Data: (Retime/Bypass) PRBS DDO1 Checker PRBS Generator Swing and Pre-emphasis Control EYE Monitor GS3241 Functional Block Diagram GS3241 2 of 105 www.semtech.com Final Data Sheet Rev.4 Semtech Proprietary & Confidential PDS-061444 July 2018 Slicer