Datasheet

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last update
November 30, 2010
reference
smtutin
page
5/27
The pin PD is used to set the power-down of the UTI. When PD = 0, the UTI is powered down and
the output node is floating (high-impedance). This enables to connect several UTI outputs to a
single output wire, provided that only a single UTI is selected (PD = 1).
The pin CML is always connected to GND except in mode CMUX.
In mode CMUX, the pin CML is used for the measurement-range selection. These ranges are 0 - 2
pF (CML = 0) and 0 - 12 pF (CML = 1), respectively.
Floating inputs are not allowed, unless stated.
In the next sections, the UTI is specified for all possible modes. The names of these modes are the
same as used in Table 2 . In this section, CML = 0 and SF = 0 unless otherwise stated. Important
parameters to be specified are:
• accuracy
• resolution
• number of phases
• specified signals in the various phases