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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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CLC012 Datenblatt(PDF) 1 Page - National Semiconductor (TI) |
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CLC012 Datenblatt(HTML) 1 Page - National Semiconductor (TI) |
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1 / 18 page  CLC012 Adaptive Cable Equalizer for ITU-T G.703 Data Recovery General Description National’s CLC012 adaptive cable equalizer is a low-cost monolithic solution for equalizing data transmitted over cable (or any media with similar dispersive loss characteristics). The CLC012 simplifies the task of high-speed data recovery with a one-chip solution and a minimal number of external components. The equalizer automatically adapts to equalize any cable length from zero meters to lengths that attenuate the signal by 40 dB at 200 MHz. This corresponds to 300 meters of Belden 8281 or 120 meters of Category 5 UTP (unshielded twisted pair). The CLC012 provides superior jitter performance: 180ps pp for 270 Mbps data that has passed through 200 meters of Belden 8281 cable. This exceptional performance provides wide error margin in digital data links. The equalizer operates on a single supply with a power consumption of only 290 mW. The small 14-pin SOIC package allows for high-density placement of components for multi-channel applications such as routers. The equalizer operates over a wide range of data rates from less than 50 Mbps to rates in excess of 650 Mbps. The equalizer is flexible in allowing either single-ended or differential input drive. Its high common mode rejection pro- vides excellent immunity to interference from noise sources. On-chip quantized feedback eliminates baseline wander. Additional features include a Loss of Signal output and an output mute pin which, when tied together, mute the output when no signal is present. A buffered eye monitor output is provided, for viewing the equalized signal prior to the com- parator. Differential AEC pins allow the user to set the inter- nal adaptive loop time constant with one external capacitor. Features n Automatic equalization of coaxial and twisted pair cables n Loss of Signal detect and output mute n Output eye monitor n Single supply operation: +5V or −5.2V n Single-ended or differential input n Low cost Applications n ITU-T G.703 serial data recovery n Serial digital data routing and distribution n Serial digital data equalization and reception n Data recovery equalization: ATM, CAD networks, medical, set top terminals, industrial video networks Key Specifications n Low jitter: 180pspp @ 270 Mbps through 200 meters of Belden 8281 coaxial cable n High data rates: < 50 Mbps to > 650 Mbps n Excellent input return loss: 19 dB @ 270 MHz n Low supply current: 68 mA n Equalizes up to 300+ meters of Belden 8281 or 120 meters of Cat 5 UTP cable Typical Application DS100145-4 August 1998 © 1998 National Semiconductor Corporation DS100145 www.national.com |
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Ähnliche Beschreibung - CLC012 |
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