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Part Number: DS2106

 

MFG: SOP

 

D/C: 2005+

Description: Fast SCSI and Ultra SCSI require the use of active terminations at both ends of every cable segment in...


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DS2106 General Description


Fast SCSI and Ultra SCSI require the use of active terminations at both ends of every cable segment in a SCSI system with singleended drivers and receivers. Ultra SCSI requires support of active negation and hot plugging. The DS2106 is fully compliant with these standards.

The DS2106 integrates a low dropout regulator and 18 precise switched 110 ohm termination resistors into a 28pin 300 mil SOIC package.

Active termination provides: greater immunity to voltage drops on the TERMPWR (TERMination PoWeR) line, enhanced highlevel noise immunity, intrinsic TERMPWR decoupling, and very low quiescent current consumption. One DS2106 can be used to terminate the Narrow SCSI bus, and a DS21S07A can be used with a DS2106 for termination of a Wide SCSI bus.

DS2106 Maximum Ratings

Voltage on Any Pin Relative to Ground                            1.0V to +7.0V
Operating Temperature                                                   0°C to 70°C
Storage Temperature                                                      55°C to +125°C
Soldering Temperature                                                    260°C for 10 seconds

DS2106 Features

• Fully compliant with SCSI1, Fast SCSI and Ultra SCSI
• Functionally compatible with DS21S07A
• Provides active termination for 18 signal lines
• 5% tolerance on termination resistors and voltage regulator
• 5% tolerance on termination current
• Low power down capacitance of 3 pF
• Onboard thermal shutdown circuitry
• SCSI bus hot plug compatible
• Fully supports actively negated SCSI signals

DS2106 Connection Diagram

DS2106 Connection Diagram

DS2106 datasheet

DS2106
PDF/DataSheet Download

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