SN65MLVD201

半双工 M-LVDS 收发器

The , 203, 206, and 207 are multipoint-low-voltage differential M-LVDS line drivers and receivers, which are optimized to operate at signaling rates up to 200 Mbps. All parts comply with the multipoint low-voltage differential signaling M-LVDS standard A/EIA-899. These circuits are similar to their TIA/EIA-644 standard compliant LVDS counterparts, with added features to address multipoint applications. The driver output has been designed to support multipoint buses presenting loads as low as 30 , and incorporates controlled transition times to allow for stubs off of the backbone transmission line.

These devices have Type-1 and Type-2 receivers that detect the bus state with as little as 50 mV of differential input voltage over a common-mode voltage range of –1 V to 3.4 V. The Type-1 receivers exhibit 25 mV of differential input voltage hysteresis to prevent output oscillations with slowly changing signals or loss of input. Type-2 receivers include an offset threshold to provide a known output state under open-circuit, idle-bus, and other faults conditions. The devices are characterized for operation from –40°C to 85°C.

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Low-Voltage Differential 30- Line Drivers and Receivers for Signaling Rates1 Up to 200 Mbps

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Type-1 Receivers Incorporate 25 mV of Hysteresis

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Type-2 Receivers Provide an Offset 100 mV Threshold to Detect Open-Circuit and Idle-Bus Conditions

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Meets or Exceeds the M-LVDS Standard TIA/EIA-899 for Multipoint Data Interchange

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Controlled Driver Output Voltage Transition Times for Improved Signal Quality

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–1 V to 3.4 V Common-Mode Voltage Range Allows Data Transfer With 2 V of Ground Noise

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Bus Pins High Impedance When Disabled or VCC ≤ 1.5 V

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100-Mbps Devices Available SN65MLVD200A, 202A, 204A, 205A

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M-LVDS Bus Power Up/Down Glitch Free

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APPLICATIONS

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Low-Power High-Speed Short-Reach

Alternative to TIA/EIA-485

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Backplane or Cabled Multipoint Data and Clock Transmission

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Cellular Base Stations

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Central-Office Switches

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Network Switches and Routers

1 The signaling rate of a line, is the number of voltage transitions that are made per second expressed in the units bps bits per second.