LM63EVAL National Semiconductor, LM63EVAL Datasheet - Page 11

• Manufacturer Part Number: LM63EVAL
• Manufacturer: National Semiconductor

Specifications of LM63EVAL

• Lead Free Status / Rohs Status: Supplier Unconfirmed

1.0 Functional Description
No-Acknowledge from the Master. Note that the No-
Acknowledge is typically used as a signal for the slave
indicating that the Master has read its last byte.
1.9 DIGITAL FILTER
The LM63 incorporates a user-configured digital filter to
suppress erroneous Remote Temperature readings due to
noise. The filter is accessed in the Remote Diode Tempera-
ture Filter and Comparator Mode Register. The filter can be
set according to the following table.
Level 2 is maximum filtering.
FIGURE 6. Step Response of the Digital Filter
D2
0
0
1
1
Digital Filter Selection Table
D1
0
1
0
1
Filter
No Filter
Level 1
Level 1
Level 2
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FIGURE 8. Digital Filter Response in an Intel Pentium 4
processor System. The Filter on and off curves were
purposely offset to better show noise performance.
FIGURE 7. Impulse Response of the Digital Filter
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