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GS3241 Datasheet(PDF) 1 Page - Semtech Corporation |
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GS3241 Datasheet(HTML) 1 Page - Semtech Corporation |
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1 / 108 page  1 of 108 Semtech Proprietary & Confidential GS3241 Final Data Sheet Rev.2 PDS-061444 September 2017 GS3241 3G-SDI Re-timing Adaptive Cable Equalizer www.semtech.com Key Features • 75Ω cable input interface with on-chip termination • SMPTE ST 424, ST 292-1 and ST 259 compliant input/output • 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 • 3D Input Signal Eye Monitor • PRBS generator and checker • Automatic cable equalization—typical equalized cable lengths of Belden 1694A cable: 190m at 2.97Gb/s 260m at 1.485Gb/s 450m at 270Mb/s and 125Mb/s • Cable equalizer features: Automatic power down on loss of signal Programmable carrier detect with squelch threshold adjustment Programmable launch swing compensation for non-compliant source Manual and automatic cable equalizer bypass • Trace driver features: Integrated 100Ω, differential output termination Extends output DC-coupling support with 1.2V to 2.5V output supply range Trace driver data output pre-emphasis to compensate for up to 60” FR4 at 2.97Gb/s Manual or automatic re-timer bypass Manual or automatic mute or disable on LOS • CDR features: Manual or automatic rate modes Wide Loop bandwidth control Re-timing at the following data rates: 125Mb/s, 270Mb/s, 1.485Gb/s, and 2.97Gb/s—this 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: -40ºC to +85ºC • Small 6mm x 4mm 40-pin QFN • Pb-free/Halogen-free/RoHS and WEEE compliant package • Pin compatible with the GS12141, GS12142, and GS12241 Applications SMPTE ST 424, SMPTE ST 292, SMPTE ST 259 interfaces requiring cable equalizing functionality. Typical applications: Cameras, Switchers, Distribution Amplifiers and Routers. Description The GS3241 is a low-power, multi-rate re-timing Cable Equalizer supporting rates up to 3G -SDI. It is designed to equalize and restore signals received over 190m coaxial cable at 3G, compensate for DC content of SMPTE pathological signals, and re-time the incoming data. The integrated eye monitor provides non-disruptive mission mode analysis of the post equalized input signal. The 256x128 resolution scan matrix allows accurate signal analysis to speed up prototyping and enable field analysis. Built in macros enable customizable cross section analysis and quick horizontal and vertical eye opening measurements. With high phase consistency between scans and configurable space and time thresholds, algorithms can be deployed in the field to analyse long term signal quality variation (Bathtub Plot) to reduce costly system installation debug time for intermittent errors. The two independently controlled trace drivers feature highly configurable pre-emphasis and swing controls to compensate for long trace and connector losses. The pre-emphasis pulse width can be optimized to compensate for perturbations to frequency response of transmission lines due to vias connectors and stubs. The GS3241 is pin compatible with the GS12141 and GS12241 single input, as well as the GS12142 dual input 12G UHD-SDI Multi-rate Re-timing Cable Equalizers. Note: For the GS3241 to be pin compatible with the GS12142, careful design considerations are required. Contact for your local Semtech FAE for details. |
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