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KS58015 DTMF DIALER FOR BINARY DATA-IN
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
SS
= 0V, 2V<V
DD
<8V, f
OSC
= 3.579545MHz, Ta = 25
°
C, unless otherwise noted)
APPLICATION INFORMATION
FUNCTION DESCRIPTION
When tone enable input is low, oscillator is inhibited, being allowed to low power standby mode
since transistor goes to
turn off state, so D0 ~ D3 input data is ignored.
However if tone enable input goes from low to high, input data is latched and tone output is enabled, and it is correspond
to data input.
This device is designed with 14 levels, 28 segments in each single-tone. The column tone is pre-emphasized 2dB than
the row tone.
TABLE1. SINGLE TONE FREQUENCY
Characteristic
Symbol
Value
Unit
Supply Voltage
MUTE Voltage
Input Voltage
Power Dissipation
Operating Temperature
Storage Temperature
V
DD
V
I (MUTE)
V
I
P
D
T
OPR
T
STG
9
9
V
DD
+ 0.3 ~ V
SS
- 0.3
500
- 30 ~ + 70
- 55 ~ + 125
V
V
V
mW
°
C
°
C
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Operating Voltage Range
Operating Current
Standby Current
V
DD
I
DD
I
SB
R
I (PULL)
V
IL
V
IH
I
OL (MUTE)
I
OH (MUTE)
V
O (TONE)
dB
CR
THD
2.0
8.0
1.5
100
V
V
DD
= 3.0V, MUTE Open
R
L
= 10K, D0~D3 open, V
DD
= 3.0V
DI0 ~ DI3, TEN
mA
μ
A
K
V
V
mA
μ
A
dBV
50
Input Pull-up Resistance
100
V
SS
0.8V
DD
0.5
0.2V
DD
V
DD
V
DD
= 3V, V
O
= 0.5, TEN = LOW
V
DD
= 3V, V
O
= V
DD
, TEN = HIGH
V
DD
= 3V, R
L
= 5K
, Row Tone
V
DD
= 3V, R
L
= 5 K
1MHz Bandwidth, V
DD
= 5V, R
L
=5K
90% Amplitudes, V
DD
= 3.0V
V
DD
= 3.0V
V
DD
= 3.0V
V
DD
= 3.0V
1.5
1
2
Tone Output Level
-14
-11
Ratio of Column to Row
1
2
3
dB
THD (Dual Tone)
-20
dB
Oscillator Start-up Time
Data Set-up Time
Data Hold Time
Data Duration
t
ST (OSC)
t
SU (DATA)
t
H (DATA)
t
W (DATA)
4
mS
nS
nS
nS
200
200
600
Tone Group
Standard DTMF (Hz)
Tone Output Actual Frequency
% Deviation from Standard
ROW 1
ROW 2
ROW 3
ROW 4
COLUMN 1
COLUMN 2
COLUMN 3
COLUMN 4
697
770
852
941
1209
1336
1477
1633
699.13
766.17
845.43
947.97
1215.89
1331.67
1471.85
1645.01
+ 0.31
- 0.50
- 0.54
+ 0.74
+ 0.57
- 0.33
- 0.35
+ 0.75
Input Voltage
Output Current (MUTE)
DI0 ~ DI3, TEN