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EQCO875SC.3-HS Datasheet(PDF) 1 Page - Microchip Technology |
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EQCO875SC.3-HS Datasheet(HTML) 1 Page - Microchip Technology |
1 / 24 page 2010-2015 Microchip Technology Inc. DS60001313A-page 1 EQCO850SC.3-HS EQCO875SC.3-HS Features • Combined Transmitter and Receiver with an Integrated Equalizer to Form a Full-Duplex Bidirectional Connection over a Single 50Ω Coax Cable (EQCO850SC-HS) or 75Ω Coax Cable (EQCO875SC-HS) • Internal LVDS Termination Resistors for Low External Discrete Count • Allows Power Distribution Over the Coax, on top of the Data Signals • Single 3.3 V Supply • 16-Pin, 0.65 mm Pin Pitch, 4 mm QFN Package • Pb-Free and RoHS Compliant Applications This solution is useful and economical for many markets and applications, including the following: • Camera networks - Home Security, Surveillance, Industrial/ Inspection, Medical Cameras • Coax Cable-Distribution Infrastructure Introduction The EQCO850SC-HS single-coax transceiver is designed to simultaneously transmit and receive signals on a single 50Ω coax cable. A sister product, the EQCO875SC-HS, can achieve similar performance when used in 75Ω coaxial systems. The EQCO850SC.3-HS works for 50Ω coax applications and the EQCO875SC.3-HS works for 75Ω coax applications. Everything is the same between both parts except the part number, the coax resistance and the characteristic impedance of transmission lines and connectors between the chip and the edge of the boards. Refer to Section 3.0 “Application Information” for information about the typical application circuit. TABLE 1: TYPICAL EQUALIZATION PERFORMANCE FOR EQCO850SC.3-HS Note: For other cable types, the length that can be reached in full-duplex may have maximally -12 dB insertion loss at 625 Mhz, for a bit rate of 1.25 Gbps. Equalizer performance works up to much higher levels in half- duplex. For lower bit-rates, slightly longer cable lengths can be achieved. Bit Rate EQCO850SC.3-HS range using RG174 (Ø 2.8 mm) RTK (Ø 2.8 mm) RG58 (Ø5 mm) 500 Mbps 25m 40m 50m 1 Gbps 15m 25m 30m TABLE 2: TYPICAL EQUALIZATION PERFORMANCE FOR EQCO875SC.3-HS Bit Rate EQCO875SC.3-HS range using RG179 RG59 RG6 1.25 Gbps 20m 40m 80m EQCO850SC.3-HS/EQCO875SC.3-HS Single-Coax Transceiver for LVDS and Gigabit Ethernet Applications |
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