The DS91M040TSQE is a quad M-LVDS Transceiver designed for driving/receiving clock or data signals to/from up to four multipoint networks. M-LVDS (multipoint LVDS) is a new family of bus interface devices based on LVDS technology specifically designed for multipoint and multi-drop cable and backplane applications. It differs from standard LVDS in providing increased drive current to handle double terminations that are required in multi-point applications. Controlled transition times minimize reflections that are common in multipoint configurations due to un-terminated stubs. M-LVDS devices also have a very large input common mode voltage range for additional noise margin in heavily loaded and noisy backplane environments. A single DS91M040 channel is a half-duplex transceiver that accepts LVTTL/LVCMOS signals at the driver inputs and converts them to differential M-LVDS signal levels. The receiver inputs accept low voltage differential signals and convert them to 3V LVCMOS signals.
DC - 125MHz/250Mbps Low jitter, low skew, low power operation
Wide input common mode voltage range allows up to ±1V of GND noise
Conforms to TIA/EIA-899 M-LVDS standard
Pin selectable M-LVDS receiver type (1 or 2)
Controlled transition times (2ns typical) minimize reflections
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