W91520N Datasheet, PDF (15/16 Pages) Winbond – TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTION

W91520N SERIES
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
DTMF
OSC.
T_PDP
2
*/T
T_KID
MB
T_IDP
3
T_P
OSCILLATION
Figure 6. Pulse-to-tone Timing Diagram
HKS
KEY IN
DP
HFI
HFO
T/P MUTE
H/P MUTE
DTMF
Low
F
F
TKID
T FB
TKID
F
TFB
OSC.
OSCILLATION
3
T FP
TKID
TITP
Figure 7. Flash Timing Diagram
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Publication Release Date: May 1997
Revision A3