IL91260C
Note 1:
100.(V
12
+ V
22
+. . . + V
n2
)
DIS% =
1
(V
OC2
+ V
OR2
)
/2
1/2
a. V
1
. . . V
n
are the intermodulation or the harmonic frequencies in the 500 Hz to 3400 Hz band.
b. V
OC
and V
OR
are the individual frequency components of the DTMF signal.
AC ELECTRICAL CHARACTERISTICS
(All Voltages referenced to GND. V
CC
= 1.8 V to 5.5 V, T
A
= -20
to +70°C, F
OSK
= 480 KHz)
Guaranteed Limits
Symbol
PULSE
T
M
T
B
T
IDP
T
PDP
T
MDP
TONE
T
MFD
T
TIDP
T
TPDP
T
MDT
T
AP
T
START
T
MS
KEY-IN
T
KD
F
KS
Keypad Debounce Time (Figure 2)
Key Scan Frequency
C1
∼
C4, R1∼ R4
19
365
25
390
ms
Hz
Minimum Tone Duration (Figure 3)
Minimum Tone Inter-Digit Pause
(XMUTE) (Figure 3)
Tone Output Pre-Digit Pause (Figure 3)
XMUTE Delay Time (Figure 3)
Auto Pause Time (Figure 4)
Oscillator Start-up Time (Figure 2)
XMUTE Start-up Time (Figure 2)
100
100
115
100
3.9
4
25
120
120
145
120
4.3
13
35
ms
ms
ms
ms
s
ms
ms
Make Time (Figure 2)
M/B = 1/2
M/B = 2/3
Break Time (Figure 2)
M/B = 1/2
M/B = 2/3
M/B = 1/2
Inter Digit Pause Time (Figure 2)
Pre-Digit Pause (Figure 2)
XMUTE, Delay Time (Figure 2)
M/B = 2/3
M/B = 1/2
M/B = 2/3
M/B = 1/2
M/B = 2/3
30
38
64
57
790
790
820
820
0
0
35
42
69
63
815
815
860
860
3
3
ms
ms
ms
ms
ms
Parameter
Test Conditions
Min
Max
Unit
INTEGRAL [ INTEGRAL CORP. ]
