DESCRIPTION
●The SN65LVDM179, SN65LVDM180, SN65LVDM050, and SN65LVDM051 are differential line drivers and receivers that use low-voltage differential signaling (LVDS) to achieve high signaling rates. These circuits are similar to TIA/EIA-644 standard compliant devices (SN65LVDS) counterparts, except that the output current of the drivers is doubled. This modification provides a minimum differential output voltage magnitude of 247 mV across a 50-Ω load simulating two transmission lines in parallel. This allows having data buses with more than one driver or with two line termination resistors. The receivers detect a voltage difference of 50 mV with up to 1 V of ground potential difference between a transmitter and receiver.
●FEATURES
●• Low-Voltage Differential 50-Ω Line Drivers and Receivers
●• Typical Full-Duplex Signaling Rates of 100 Mbps (See Table 1)
●• Bus-Terminal ESD Exceeds 12 kV
●• Operates From a Single 3.3-V Supply
●• Low-Voltage Differential Signaling With Typical Output Voltages of 340 mV With a 50-Ω Load
●• Valid Output With as Little as 50-mV Input Voltage Difference
●• Propagation Delay Times
● – Driver: 1.7 ns Typical
● – Receiver: 3.7 ns Typical
●• Power Dissipation at 200 MHz
● – Driver: 50 mW Typical
● – Receiver: 60 mW Typical
●• LVTTL Input Levels Are 5-V Tolerant
●• Driver Is High Impedance When Disabled or With VCC < 1.5 V
●• Receiver Has Open-Circuit Failsafe
