User Guide

PAMS Technical Documentation 3. System Module
NSD-5
Issue 1 05/02 Nokia Corporation Page 53
Figure 26: The polarity of VCO
Serial Data Input Timing
Data in parentheses indicates programmable reference divider data. Data shifted into
register on clock rising edge. Data is shifted in MSB first.
t
cs
= Data to Clock Set-Up Time
t
CH
= Data to Clock Hold Time
t
CWH
= Clock Pulse Width High
t
CWL
= Clock Pulse Width Low
t
ES
= Clock to Load Enable Set-Up Time
t
EW
= Load Enable Pulse Width