The SN65LVDS108 is configured as one differential line receiver connected to eight differential line drivers. Individual output enables are provided for each output and an additional enable is provided for all outputs.
The line receivers and line drivers implement the electrical characteristics of low-voltage differential signaling (LVDS). LVDS, as specified in EIA/TIA-644, is a data signaling technique that offers low power, low noise emission, high noise immunity, and high switching speeds. (Note: The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media, the noise coupling to the environment, and other system characteristics.)
The intended application of this device, and the LVDS signaling technique, is for point-to-point or point-to-multipoint (distributed simplex) baseband data transmission on controlled impedance media of approximately 100 Ω. The transmission media may be printed-circuit board traces, backplanes, or cables. The large number of drivers integrated into the same silicon substrate, along with the low pulse skew of balanced signaling, provides extremely precise timing alignment of the signals being repeated from the inputs. This is particularly advantageous for implementing system clock or data distribution trees.
The SN65LVDS108 is characterized for operation from –40°C to 85°C.
One Line Receiver and Eight Line Drivers Configured as an 8-Port LVDS Repeater
Line Receiver and Line Drivers Meet or Exceed the Requirements of ANSI EIA/TIA-644 Standard
Typical Data Signaling Rates to 400 Mbps or Clock Frequencies to 400 MHz
Enabling Logic Allows Individual Control of Each Driver Output, Plus All Outputs
Low-Voltage Differential Signaling With Typical Output Voltage of 350 mV and a 100-Ω Load
Electrically Compatible With LVDS, PECL, LVPECL, LVTTL, LVCMOS, GTL, BTL, CTT, SSTL, or HSTL Outputs With External Termination Networks
Propagation Delay Times < 4.7 ns
Output Skew Less Than 300 ps andPart-to-Part Skew Less Than 1.5 ns
Total Power Dissipation at 200 MHz Typically Less Than 330 mW With 8 Channels Enabled
Driver Outputs or Receiver Input Equals High Impedance When Disabled or With VCC < 1.5 V
Bus-Pin ESD Protection Exceeds 12 kV
Packaged in Thin Shrink Small-Outline Package With 20-Mil Terminal Pitch