W91031 Datasheet, PDF (19/29 Pages) Winbond – LOW POWER CMOS INTERGRATED CIRCUIT

Preliminary W91031
SLEEP
OSCO
tWAKE
t SLP
Figure 8-1. Wake up and Sleep Down Timing
Tip/Ring
FSKE
ALGR
Alerting Signal
t ALTE
Note
t DP
tDA
Alerting Signal
tDA
t DP
Figure 8-2. Alert Detection Enable and Alert Signal Present and Absent Detect Timing
Note: The minimal delay from FSKE low to ALGR high is t_ALTE + t_DP, if the alerting signal is present before t_ALTE has elapsed.
Tip/Ring
FSKE
FCDN
t FSKE
Analog FSK Signal
Note
t CA
t CP
Analog FSK Signal
tCP
tCA
Figure 8-3. FSK Detection Enable and FSK Carrier Detect Present and Absent Timing
Note: The minimal delay from FSKE high to FCDN high is tFSKE + tCP, if the analog FSK signal is present before t_FSKE has
elapsed.
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Publication Release Date: August 2000
Revision A1