LMX25311146EVAL National Semiconductor, LMX25311146EVAL Datasheet - Page 16
![BOARD EVAL FOR LMX25311146](/photos/39/50/395037/4650768_sml.jpg)
LMX25311146EVAL
Manufacturer Part Number
LMX25311146EVAL
Description
BOARD EVAL FOR LMX25311146
Manufacturer
National Semiconductor
Series
PowerWise®r
Datasheets
1.LMX2531LQ1778ENOPB.pdf
(36 pages)
2.LMX25311146EVAL.pdf
(23 pages)
3.LMX25311146EVAL.pdf
(34 pages)
Specifications of LMX25311146EVAL
Main Purpose
Timing, Frequency Synthesizer
Utilized Ic / Part
LMX2531LQ1146E
Silicon Manufacturer
National
Silicon Core Number
LMX2531
Kit Application Type
Clock & Timing
Application Sub Type
Frequency Synthesizer
Kit Contents
Board, Cable, CD
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Secondary Attributes
-
Embedded
-
Primary Attributes
-
Lead Free Status / Rohs Status
Supplier Unconfirmed
Serial Data Timing Diagram
20101103
The DATA is clocked into a shift register on each rising edge of the CLK signal. On the rising edge of the LE signal, the data is
sent from the shift registers to an actual counter. A slew rate of at least 30 V/μs is recommended for these signals. After the
programming is complete, the CLK, DATA, and LE signals should be returned to a low state. Although it is strongly recommended
to keep LE low after programming, LE can be kept high if bit R5[23] is changed to 0 (from its default value of 1). If this bit is changed,
then the operation of the part is not guaranteed because it is not tested under these conditions. If the CLK and DATA lines are
toggled while the in VCO is in lock, as is sometimes the case when these lines are shared with other parts, the phase noise may
be degraded during the time of this programming.
www.national.com
16