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Электронный компонент: IL91260CN

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TECHNICAL DATA
IL91260C
10 Memory Tone/Pulse Dialer
High-Performance Silicon-Gate CMOS
ORDERING INFORMATION
IL91260CN
T
A
= -20
to 70 C
The IL91260C is tone/pulse switchable dialer with ten 16-digit number
memories and 32-digit redial memory. Pulse to tone mode switching is
performed via a slide switch.
32-digit redial memory (31 digits in tone mode)
Ten indirect memories, 16 digits in pulse mode, 15 digits in tone
mode
Tone/Pulse mode switching via slide switch (4.1 second pause
inserted automatically)
Wide operating voltage: 1.8 V
5.5 V
Uses 480 KHz ceramic resonator
Low memory retention current
Selectable Make/Break ratio
Dial Pulse Rate: 10 pps
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 11 = GND
PIN 10 = V
CC



Keyboard Assignments*
1 2 3
S
R1
4 5 6
A/L
R2
7 8 9
P
R3
* 0 #
R
R4
C1 C2 C3
C4
S :
Store
A/L :
Auto/Location
P :
Pause
R :
Redial
IL91260C


Pin Description
Pin No.
Designation
Description
1 R1
2 R2
3 R3
4 R4
5
HK
Hook switch input.
When HK = V
CC
, an ON-Hook state exists.
When HK = GND, an Off-Hook state exists.
6
M/B
Dial pulse Make/Break ratio select input.
If M/B = V
CC
, the Make/Break ratio is 1/2.
If M/B = GND, the Make/Break ratio is 2/3.
7 MODE
SELECT
Pulse/DTMF mode select input.
If MODE SELECT = V
CC
, Pulse mode is in effect.
If MODE SELECT = GND, DTMF mode is in effect.
8
9
OSCI
OSC0
Oscillator I/O.
A 480 KHz ceramic resonator and two 100 pF serial loading capacitors form
a complete oscillator circuit. The circuit is activated when HK is low.
Oscillator start-up time is typically 10 ms.
10 V
CC
Positive power supply.
11
GND
Negative power supply.
12
TONE
DTMF signal output.
Pull-down load resistance is 10,000
.
The minimum tone and IDP durations are built-in for both normal dialing
and redialing.
13
XMUTE
Transmit mute output.
This is an N-channel open drain output. The output transistor is switched on
while a sequence of digits is being dialed (for both Pulse and Tone modes).
Otherwise, it is switched off.
14
DP
Dial pulse output.
This pin is an N-channel open drain output. When DP output is low
(switched on), it serves as a break signal in Pulse dialing. For other
operations, DP output is normally high impedance (switched off).
15 C1
16 C2
17 C3
18 C4
Keyinputs.
When a row and a column are connected, a key operation is activated.
Scanning signals are present on both the row and column pins during a valid
key-in condition.
Keyinputs.
When a row and a column are connected, a key operation is activated.
Scanning signals are present on both the row and column pins during a valid
key-in condition.
TECHNICAL DATA
Operation Procedures
5.
(ii) On/Off-hook store: 0 - 0
, S , D
P
. . . D
P
or
D
t
. . . D
t
, A/L , LOCi
Symbol Definitions:
a.
D
t
: tone digit, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #
D
P
: Pulse digit, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
6.
Dialing from Repertory Memory
0 - 0
, A/L , LOCi, ZiZiZi 0 - 0
b.
LOCi : i = 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
c.
ZiZiZi : Conversation mode
Functional Description
d.
0 - 0
: OFF-HOOK
1.
N-Channel Open Drain Output - DP, XMUTE
e.
0 - 0
: ON-HOOK
Figure 1.
f.
: Input Level from Low to High
g.
: Input Level from High to Low

Recommended dialing, redialing, mixed dialing and
storing operations:
1.
Normal dialing in pulse mode
0 - 0
, D
P
. . . D
P
, ZiZiZi 0 - 0
2.
Normal dialing in tone mode
0 - 0
, D
t
. . . D
t
, ZiZiZi 0 - 0
3.
Mixed dialing in pulse-to-tone mode
0 - 0
, D
P
. . . D
P
, MODE SELECT
, D
t
. . . D
t
, ZiZiZi 0 - 0
2.
DTMF Generator
The digitally synthesized sinewave of the IN91260
series is well designed, with a 6 level, 12 segment,
1/2 V
CC
reference voltage. The THD (Total Harmonic
Distortion) of the DTMF output is typically 1%, when
V
CC
= 2.5 V to 5.5 V and frequency is in the 500 HZ to
3400 HZ
band.
4.
Redialing
0 - 0
, D
P
. . . D
P
0 - 0
, 0 - 0 , R, ZiZiZi, 0 - 0

0 - 0
, D
t
. . . D
t
0 - 0
, 0 - 0 , R, ZiZiZi, 0 - 0

Storing Numbers to Repertory Memory
(i) Off-hook Store 0 - 0
, S , D
P
. . . D
P
or D
t
. . . D
t
, A/L , LOCi, 0 - 0

MAXIMUM RATINGS
*
Symbol Parameter
Value
Unit
VCC
DC Supply Voltage (Referenced to GND)
-0.3 to +6.0
V
VIN
DC Input Voltage (Referenced to GND)
-0.3 to VCC +0.3
V
VOUT
DC Output Voltage (Referenced to GND)
-0.3 to VCC +0.3
V
VOUT
DC Output Voltage (DP, XMUTE)
-0.3 to 1.2
V
ITONE
DC Output Current(Tone)
50
mA
P
D
Power Dissipation in Still Air,
Plastic DIP
**
500 mW
Tstg
Storage Temperature
-40 to +125
C
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
**
Durating: -10
mW
/
C
from 65
C to 70C.
TECHNICAL DATA

RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min
Max
Unit
V
CC
DC Supply Voltage (Referenced to GND)
1.8
5.5
V
V
IN
DC Input Voltage (Referenced to GND)
0
V
CC
V
V
OUT
DC Output Voltage (Referenced to GND)
0
V
CC
V
T
A
Operating Temperature
-20
+70
C
This device contains protection circuitry to guard against damage due to high static voltages or electric fields.
However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this
high-impedance circuit. For proper operation, V
IN
and V
OUT
should be constrained to the range GND
(V
IN
or
V
OUT
)
V
CC
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V
CC
). Unused
outputs must be left open.
DC ELECTRICAL CHARACTERISTICS
(Voltages Referenced to GND, V
CC
=1.8 V to 5.5 V,
T
A
= -20 to +70
C)
Guaranteed
Limits
Symbol Parameter
Test
Conditions Min
Max
Unit
V
IH
High-Level Input Voltage
0.8V
CC
V
CC
V
V
IL
Low-Level Input Voltage
0
0.2V
CC
V
V
MR
Minimum Memory
Retention Voltage
V
CC
= 1.0 V
1.5
V
R
LOAD
= 10 K
V
CC
= 2.5 V
540 640
R
LOAD
= 10 K
V
CC
= 5.5 V
100 1300
R
LOAD
= 10 K
V
CC
= 2.5 V
410 490
R
LOAD
= 10 K
V
CC
= 5.5 V
850 990
I
C
*
Column Input Current
V
IN
=3.5 V All outputs unloaded
0.6
2.0
mA
I
R
*
Row Input Current
V
IN
= 0 V All outputs unloaded
5
50
A
I
OL1
V
CC
= 3.5 V, V
OL
= 0.4 V
0.7
mA
I
OL2
V
CC
= 2.0 V, V
OL
= 0.4 V
0.2
mA
I
MR
Maximum Memory
Retention Current
V
CC
= 1.0 V, HK = V
CC
All outputs unloaded
0.6
A
V
CC
=3.5 V
0.7
V
CC
=5.5 V
2.1
V
CC
=3.5 V
1.3
V
CC
=5.5 V
3.9
I
SD
Maximum Standby
Current
V
CC
= 2.5 V, HK = GND
All outputs unloaded
7.0
A
T
WIST
Pre.-emphasis V
CC
= 3.5 V
1
3
dB
V
V
Valley of Single Tone
V
CC
= 3.5 V
0.3
6.0
V
DD
DIS%
Distortion
*Note 1, V
CC
= 3.5 V
6.0
%
Single Column Tone
Output Amplitude
Single Row Tone
Output Amplitude
Maximum Supply
Operation Current
I
CCT
I
CCP
Minimum Sink Output
Current DP, XMUTE
Oscillator running;
all outputs
unloaded, V
IL
= 0,
V
IH
= V
CC
V
OR
*
V
OC
*
mVp-p
mVp-p
mA
mA
* @ 25
C
IL91260C


Note 1:
DIS% =


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 Parameter Test
Conditions
Min
Max
Unit
PULSE
M/B = 1/2
30
35
M/B = 2/3
38
42
M/B = 1/2
64
69
M/B = 2/3
57
63
M/B = 1/2
790
815
M/B = 2/3
790
815
M/B = 1/2
820
860
M/B = 2/3
820
860
M/B = 1/2
0
3
M/B = 2/3
0
3
TONE
T
MFD
Minimum Tone Duration (Figure 3)
100
120
ms
T
TIDP
Minimum Tone Inter-Digit Pause
(XMUTE) (Figure 3)
100
120
ms
T
TPDP
Tone Output Pre-Digit Pause (Figure 3)
115
145
ms
T
MDT
XMUTE Delay Time (Figure 3)
100
120
ms
T
AP
Auto Pause Time (Figure 4)
3.9
4.3
s
T
START
Oscillator Start-up Time (Figure 2)
4
13
ms
T
MS
XMUTE Start-up Time (Figure 2)
25
35
ms
KEY-IN
T
KD
Keypad Debounce Time (Figure 2)
19
25
ms
F
KS
Key Scan Frequency
C1
C4, R1 R4
365 390 Hz
Make Time (Figure 2)
Break Time (Figure 2)
Inter Digit Pause Time (Figure 2)
Pre-Digit Pause (Figure 2)
XMUTE, Delay Time (Figure 2)
100.(V
1
2
+ V
2
2
+. . . + V
n
2
)
1/2
(V
OC
2
+ V
OR
2
)
1/2
ms
T
M
ms
T
B
ms
T
IDP
ms
T
PDP
ms
T
MDP