DS2118M
to minimize signal and power trace length, thereby resulting in less input capacitance and reflections
which can degrade the bus signals.
To maintain the specified regulation, a 4.7
µF
capacitor is required between the Vref pin (VREF) and
ground of each DS2118M. A high frequency cap (0.1
µF
ceramic recommended) can also be placed on
the Vref pin in applications that use fast rise/fall time drivers. A typical SCSI bus configuration is shown
in Figure 2.
NOTE:
DIFFSENS – Refers to the SCSI bus signal.
DIFFSENSE – Refers to the DS2118M pin name and internal circuitry capable of driving the
DIFFSENS line.
DIFF_CAP - Refers to the DS2118M pin name and internal circuitry relating to monitoring the
DIFFSENS line.
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DALLAS [ DALLAS SEMICONDUCTOR ]
