www.DataSheet4U.com
Global Mixed-mode Technology Inc.
Low Voltage Differential (LVD) SCSI 27 Line Regulator Set
Featur...
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 ...