W91550DN SERIES
- 14 -
AC CHARACTERISTICS
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Key-in Debounce
T
KID
-
-
20
-
mS
Key Release Debounce
T
KRD
-
-
20
-
mS
Off-hook Delay
T
OFD
Lock only
-
300
-
mS
First Key-in Delay
T
FKD
Lock only
-
300
-
mS
On-hook Debounce
T
OHD
Normal mode
-
250
-
mS
Lock mode
-
20
-
Pulse Mute Delay
T
MD
B/M = V
DD
-
40
-
mS
B/M = V
SS
-
33.3
-
Pre-digit-pause (10 ppS)
T
PDP
B/M = V
DD
-
40
-
mS
B/M = V
SS
-
33.3
-
Interdigit Pause (Auto dialing)
T
IDP
10 ppS
-
800
-
mS
Make/Break Ratio
M:B
B/M = V
DD
-
40:60
-
%
B/M = V
SS
-
33:67
-
Tone Output Duration
T
TD
Auto dialing
-
87
-
mS
Intertone Pause
T
ITP
Auto dialing
-
87
-
mS
F1
-
600
-
Flash Break Time
T
FB
F2
-
300
-
mS
F3
-
98
-
Flash Pause Time
T
FP
F1, F2, F3
-
1.2
-
S
Mask option
-
2.0
-
Pause Time
T
P
(default 3.6S)
-
3.6
-
S
-
4.0
-
One-key Redialing Break Time
T
RB
-
-
2.2
-
S
One-key Redialing Pause Time
T
RP
-
-
0.6
-
S
LCD Frame Frequency
F
LCD
-
-
50
-
Hz
Notes:
1.
Crystal parameters suggested for proper operation are R
S
<
100
Ω
,
L
m
= 96
m
H,
C
m
=
0.02
pF,
C
n
=
5 pF,
Cl
=
18 pF,
and
F
OSC
.
= 3.579545 MHz
±
0.02%
2.
Crystal oscillator accuracy directly affects these times.
