G261

www.DataSheet4U.com Global Mixed-mode Technology Inc. Low Voltage Differential (LVD) SCSI 27 Line Regulator Set Features SCSI SPI-2 (Ultra 2), SPI-3 (Ultra 3/Ultra 160) and SPI-4 (Ultra 320) LVD SCSI, 27 Line Low Voltage Differential Regulator „ 4V to 5.25V Operation „ Integrated Regulator Set for LVD SCSI „ Differential Failsafe Bias „ G261 Description The G261 LVD Regulator set is designed to provide the correct reference voltages and bias currents for LVD termination resistor networks (475Ω, 121Ω, and 475Ω). The device also provides a 1.3V output for DIFFSENSE signaling. With the proper resistor network, the G261 solution will meet the common mode impedance, differential mode impedance, differential bias voltage and common mode voltage requirements of SPI-2 (Ultra2), SPI-3 (Ultra 3/Ultra 160) and SPI-4 (Ultra 320). This device contains two sink / source reference voltage regulators, a 1.3V buffered output and protection features. The protection features include thermal shutdown and active current limiting circuitry. The G261 is offered in 8 pin SOP and 16pin SOP. Applications SCSI cable SCSI card „ Disk Array „ Industrial PC „ POS „ „ Ordering Information ORDER ORDER NUMBER TEMP. NUMBER (Pb free) RANGE G261P1U G261P3U G261P1Uf G261P3Uf 0°C~70°C 0°C~70°C PACKAGE SOP-8 SOP-16 Pin Configuration G261 NC REG2 HSPGND HSPGND REG1 1 8 1 2 3 4 5 6 7 8 G261 16 15 14 13 12 11 10 9 NC NC NC HSGND HSGND NC NC NC TERMPWR HSGND HSGND DIFFSENSE TERMPWR REG2 HSPGND HSGND REG1 ...