DS90C031B Datasheet | National Semiconductor

Description The DS90C031B is a quad CMOS differential line driver designed for applications requiring ultra low power dissipation and high data rates. The device is designed to support data rates in excess of 155.5 Mbps (77.7 MHz) utilizing Low Voltage Differential Signaling (LVDS) technology. The DS90C031B accepts TTL/CMOS input levels and translates them to low voltage (350 m V) differential output signals. In addition the driver supports a TRI-STATE ® function that may be used to disable the output stage, disabling the load current, and thus dropping the device to an ultra low idle power state of 11 m W typical. In addition, the DS90C031B provides power-off high impedance LVDS outputs. This feature assures minimal loading effect on the LVDS bus lines when VCC is not present. The DS90C031B and panion line receiver (DS90C032B) provide a new alternative to high power pseudo-ECL devices for high speed point-to-point interface applications. Features n n n n n n n n > 155.5 Mbps (77.7 MHz) switching rates High impedance LVDS outputs with power-off ± 350 m V differential signaling Ultra low power dissipation 400 ps maximum differential skew (5V, 25˚C) 3.5 ns maximum propagation delay Industrial operating temperature range Pin patible with DS26C31, MB571 (PECL) and 41LG (PECL) n Conforms to ANSI/TIA/EIA-644 LVDS standard n Offered in narrow and wide body SOIC package n Fail-safe logic for floating inputs Connection Diagram Dual-In-Line Functional Diagram DS100989-1 Order Number DS90C031BTM, or DS90C031BTWM See NS Package Number M16A or M16B DS100989-2 Driver Truth Table Enables EN L All other binations of ENABLE inputs EN- H Input DIN X L H Z L H Outputs DOUT+ DOUT- Z H L TRI-STATE ® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS100989 .national. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/...