DS2105中文资料SCSI端接器数据手册ADI规格书

描述 Description

Fast SCSI and Ultra SCSI require the use of active terminations at both ends of every cable segment in a SCSI system with single-ended drivers and receivers. The DS2105 SCSI terminator, which is fully compliant with these standards, enables the designer to gain the benefits of active termination: greater immunity to voltage drops on the TERMPWR (TERMination PoWeR) line, enhanced high-level noise immunity, intrinsic TERMPWR decoupling, and very low quiescent current consumption. The DS2105, which integrates a regulator and nine precise switched 110 ohm termination resistors into a monolithic IC, is a functionally compatible version of the DS21S07A. With relaxed output current and termination tolerances, the DS2105 is intended for high volume applications which require active termination but not the high performance of the DS21S07A. The DS2105 is offered in both 300mil and 150mil SO packages.

特性 Features

• Fully compliant with SCSI-1, Fast SCSI and Ultra SCSI
• Functionally compatible to the DS21S07A, targeted for high volume applications
• Provides active termination for nine signal lines
• Laser-trimmed 110 ohm termination resistors have 5% tolerance
• Low dropout voltage
• Power-down mode isolates termination resistors from the bus
• Fully supports actively negated SCSI signals
• On-board thermal shutdown circuitry
• 16-pin plastic SO (DS2105)

简介

DS2105属于集成电路（IC）的信号端接器。由制造生产的DS2105信号端接器信号端接器用于向信号路径提供电气端点，以防止信号反射回电路而引起干扰。类型有电缆、DDCA、SCSI、HVD、SE、LVD、串行和 USB，端接数量为 1、2、6、8、9、14、15、18 或 27。