SN65MLVD207DR TI Chips MULTIPOINT LVDS LINE DRIVER AND RECEIVER

TI Chips SN65MLVD207DR MULTIPOINT-LVDS LINE DRIVER AND RECEIVER

FEATURES
• Low-Voltage Differential 30-Ω to 55-Ω Line Drivers and Receivers for Signaling Rates⁽¹⁾ Up to 200 Mbps
• Type-1 Receivers Incorporate 25 mV of Hysteresis
• Type-2 Receivers Provide an Offset (100 mV) Threshold to Detect Open-Circuit and Idle-Bus Conditions
• Meets or Exceeds the M-LVDS Standard TIA/EIA-899 for Multipoint Data Interchange
• Controlled Driver Output Voltage Transition Times for Improved Signal Quality
• -1 V to 3.4 V Common-Mode Voltage Range Allows Data Transfer With 2 V of Ground Noise
• Bus Pins High Impedance When Disabled or Vcc ≤ 1.5 V
• 100-Mbps Devices Available (SN65MLVD200A, 202A, 204A, 205A)
• M-LVDS Bus Power Up/Down Glitch Free

APPLICATIONS
Low-Power High-Speed Short-Reach Alternative to TIA/EIA-485
Backplane or Cabled Multipoint Data and Clock Transmission
Cellular Base Stations
Central-Office Switches
Network Switches and Routers

DESCRIPTION
The SN65MLVD201, 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 TIA/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 Ω, 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.