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TECHNICAL DATA
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Tone/Pulse Dialer with Handsfree Control and Flash Function
IL91214A and IL91214B are tone/pulse dialers designed for providing standard DTMF or pulse signals. The ICs enable to: - generate standard DTMF or pulse signals of dialing as well as "flash" pulses; - store and redial last number; - generate pause in the transmitted package of dial signals; ICs are designed to be used in telephone sets.
PIN DESCRIPTION
HK MODE IN OSCI
01 02
16 15
R4 R3 R2 R1 C3 C2 C1 DP
Pin # A B
Designation HK MODE IN
Description Hook switch input MODE IN = VDD: pulse mode, 10 Hz, / = 1/2, MODE IN = VSS: tone mode, MODE IN = floating mode, 20 Hz, / = 1/2 Oscillator input Oscillator output Ground Supply output Tone dialing output Dialing transmission mute output Mode output pin Key-in tone output Dialing pulse output Keyboard column input Keyboard column input Keyboard column input Keyboard row input Keyboard row input Keyboard row input Keyboard row input
03
14
OSCO 04
Vss 05 Vdd TONE
1 2
1 2
IL91214A
13 12 11
10 09
06
07
08
XMIT MUTE
HK MODE IN
01 02
18 17 16
R4 R3 R2 R1 C3 C2 C1 DP
3 4 5 6 7 8 9 10 11 12 13 14 15 16
OSCI 03 OSCO 04
15
14 13 12
Vss 05 Vdd 06 TONE 07
XMIT MUTE
08
11 10
MODE OUT 09
KT
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
OSCI OSCO VSS VDD TONE XMIT MUTE MODE OUT KT DP C1 C2 C3 R1 R2 R3 R4
Fig. 1. Pin configuration in package
IL91214B
1
IL91214 A, IL91214B
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R1 KEYBOARD LOGIC R4 C1 C3 REDIAL MEMORY 32 DIGITS OUTPUT LOGIC
DP KT XMIT MUTE MODE OUT
VDD DTMF GENERATOR TONE MODE IN HK OSCI OSCO
INPUT LOGIC
CONTROL LOGIC
OSC.
Fig. 2. Block diagram.
2
IL91214 A, IL91214B
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DC electrical characteristics
Parameter Supply voltage, V Memory retention voltage, V Memory retention current, u Operation current, Standby current, u Input voltage, V Input current R1-R4, u Tone out voltage, V Sink current XMUTE, Sink current DP, Distortion, %
(VDD = 3.5 V, VSS = 0 V, FOSC = 3.579 Hz, T = 25OC, unless otherwise specified)
Symbol VDD VMR * IMR IDDP IDDT * ISO VIH VIL IR VOC VOR IOL1 IOL2 DIS % 584 456 0.9 1.1 0.8 VDD 0 115 730 570 5.3 5.3 1 5 876 684 Column Row VDD=3.5V RL=5 Min. 2.0 2.0 1 0.05 0.32 0.6 0.03 0.5 Typ Max. 5.5 5.5 0.4 1.0 2.0 0.05 10 VDD 0.2 VDD Condition Pulse mode Tone mode VDD = 1.0 V HK = VDD All outputs unloaded Pulse Tone All outputs unloaded. HK=VDD No key selected. =VSS VDD=1.5V VDD = 3.5 V
VDD=3.5V, VOL=0.4V VDD=3.5V, VOL=0.4V
* - in this mode IC functioning is not guaranteed.
AC characteristics
Parameter Make time, s Break time, s Inter-digit pause time, s Pause time, s Auto-redial break time, s
(VDD = 3.5 V, VSS = 0 V, FOSC = 3.579 Hz, T = 25OC, unless otherwise specified)
Symbol TM TIDP TPAU TAOBK Min. Typ 33.3 16.7 66.6 33.3 824 458 2.2 2.2 Max. Condition Dialing speed, pps 10 M/B=1/2 20 10 20 10 pps 20 pps M/B=1/2 M/B=1/2 M/B=1/2
3
IL91214 A, IL91214B
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Parameter Delay time key valid to signal out, s Key-in debounce, s Key-in tone duration, s Key-in tone frequency, Hz Minimal tone duration time, s Minimum tone inter-digit pause, s Redial tone duration, s Redial tone inter-digit duration, s
Symbol TD TKD TKTD FKT TMFD TTIDP TMFDR TTIDPR
Min.
Typ 0 21 23 437 94 96 94 96
Max.
Condition
Values of generated frequencies
R/C Frequency 697 770 852 941 1.209 1.336 1.477 Error, % + 0.31 + 0.19 + 0.03 + 0.10 + 0.57 - 0.32 - 0.35 Unit Hz Hz Hz Hz Hz Hz Hz FOSC = 3.579 Hz Conditions
R1 R2 R3 R4 1 2 3
Absolute maximum ratings
Parameter Absolute maximum value
Supply voltage Input voltage Output voltage Output voltage (DP, XMIT MUTE). Tone output current Power dissipation Storage temperature
VDD VIN VOUT VOUT ITONE PD TSTG
6.0V VSS-0.3V ~ VDD+0.3V VSS-0.3V ~ VDD+0.3V 1.2V 50 500 W -40 ~ +125
4
IL91214 A, IL91214B
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1. Pulse dialing mode.
HK Key input
2
TKD : debouncing time 21 s XMIT MUTE TD DP TM TM TKTD (23 s), f = 437 Hz
1
3
TID TM
21 s
TB
2. Tone dialing mode.
HK Key input
4
XMIT MUTE TD 2.3 s TONE TTID MODE OUT TKD
3
*
9
TMF 2.5 s
2.3 s
2.3 s
3. Redialing.
HK Key input RD XMIT MUTE TD TMFD 2.5 s
TONE TTIDP MODE OUT
5
IL91214 A, IL91214B
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4. Switching mode operation (MODE IN control).
HK Key input 2 MODE IN 3 */T 6 4
DP TM MODE OUT TD XMIT MUTE TPA TONE TMF TID TID TM
5. Switching mode operation (*/T key entry).
HK Key input 2 MODE IN 3 */T 6 4
DP TM MODE OUT XMIT MUTE TD TID TPA TMF 2.5 TONE 2.5 TID TM
6
IL91214 A, IL91214B
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6. One key redial using RD key (DTMF mode for example).
HK Key input 2 XMIT MUTE 3 RD
DP
TAOBK TD 2.5 s TD 2.5 s
TONE MODE OUT
7. Flash dialing
HK Key input F XMIT MUTE TFSH DP 6 4 3
MODE OUT TPAU TONE 2.5 2.5 s
7
IL91214 A, IL91214B
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N SUFFIX PLASTIC DIP (MS - 001BB)
A
Dimension, mm
16 9 B 1 8
Symbol A B C
MIN 18.67 6.1
MAX 19.69 7.11 5.33
F
L
D F
0.36 1.14 2.54 7.62 0 2.92 7.62 0.2 0.38
0.56 1.78
C -T- SEATING N G D 0.25 (0.010) M T K
PLANE
G H
H J
M
J K L M N
10 3.81 8.26 0.36
NOTES: 1. Dimensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side.
D SUFFIX SOIC (MS - 012AC) Dimension, mm
A 16 9
Symbol A
MIN 9.8 3.8 1.35 0.33 0.4 1.27 5.72 0 0.1 0.19 5.8 0.25
MAX 10 4 1.75 0.51 1.27
H
B
P
B C
1
G
8 C R x 45
D F G
J F M
-TD 0.25 (0.010) M T C M K
SEATING PLANE
H J K M P R
8 0.25 0.25 6.2 0.5
NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B 0.25 mm (0.010) per side.
8
IL91214 A, IL91214B
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N SUFFIX PLASTIC DIP (MS - 001AC)
A
Dimension, mm
18 10 B 1 9
Symbol A B C
MIN 22.35 6.1
MAX 23.37 7.11 5.33
F
L
D F
0.36 1.14 2.54 7.62 0 2.92 7.62 0.2 0.38
0.56 1.78
C -T- SEATING N G D 0.25 (0.010) M T K
PLANE
G H
H J
M
J K L M N
10 3.81 8.26 0.36
NOTES: 1. Dimensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side.
D SUFFIX SOIC (MS - 013AD)
A 18 10
Dimension, mm Symbol MIN 10.1 7.4 2.35 0.33 0.4 1.27 MAX 10.5 7.6 2.65 0.51 1.27
H
B
A B
1
G
9 C R x 45
C D F
-TD 0.25 (0.010) M T C M K
SEATING PLANE
J
F
M
G H J K M P R 0 0.1 0.23 10 0.25
NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B 0.25 mm (0.010) per side.
8 0.3 0.32 10.65 0.75
9

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