W91330N SERIES
AC Characteristics, continued
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
40:60
33.3:66.7
93
MAX. UNIT
Make/Break Ratio
M:B
Mode = VDD
-
-
-
-
-
-
-
-
-
-
-
-
%
Mode = Floating
Tone Output Duration
Intertone Pause
TTD
TITP
TFB
Auto dialing
mS
mS
Auto dialing
93
Flash Break Time
F1
600
100
300
73
F2
mS
F3
F4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Flash Pause Time
Pause Time
TFP
TP
F1, F2, F3, F4
1.0
S
S
R/P1
3.6
R/P2
2.0
Key Tone Frequency
Key Tone Duration
FKT
TKTD
TRB
-
-
-
600
35
Hz
mS
S
One-Key Redial Break
Time
2.2
One-Key Redial Pause
Time
TRP
-
-
0.6
-
S
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100 W, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,
FOSC. = 3.579545 MHz ± 0.02%.
2. Crystal oscillator accuracy directly affects these times.
TIMING WAVEFORMS
< 600 mS
HKS
< 300 mS
TKRD
3
4
2
2
KEY IN
DP
TKID
T
KID
M B
M B
T
T
IDP
T
IDP
T
IDP
IDP
T
PDP
TPDP
T/P MUTE
KT
Low
DTMF
OSCILLATION
OSCILLATION
OSC.
Figure 1(a). Normal Dialing Timing Diagram (Pulse Mode Without Lock Function)
Timing Waveforms, continued
- 10 -
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