W91580 Datasheet, PDF (14/19 Pages) Winbond – 24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS

W91580 SERIES
TIMING WAVEFORMS
HKS
KEY IN
DP
T/P MUTE
HPM MUTE
KT
DTMF
OSC.
4
2
TKI
D
B
M
TPD
TID
TID
P
P
P
2
TKI
D
TID
P
TPD
P
LOW
OSCILLATION
OSCILLATION
Figure 1. Pulse Mode Diagram (Normal Dialing)
HKS
KEY IN
DTMF
T/P MUTE
HPM MUTE
KT
DP
OSC.
TKID
TITP
TTD
TKRD
TITP
TKID
TKRD
TITP
LOW
LOW
HIGH
OSCILLATION
OSCILLATION
Figure 2. Tone Mode Diagram (Normal Dialing)
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