KS58015 [SAMSUNG]
DTMF DIALER FOR BINARY DATA-IN; DTMF拨号器的二进制数据-IN
| 型号： | KS58015 |
| 厂家： | 
SAMSUNG |
| 描述： | DTMF DIALER FOR BINARY DATA-IN |
| 文件： | 总4页 (文件大小：61K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KS58015
DTMF DIALER FOR BINARY DATA-IN
INTRODUCTION
14-DIP-300
The KS58015 is a DTMF dialer for 4 bit binary data input from
microprocessor. When the tone enable input low, the oscillator is in-
hibited and the device is in a low power consumption at standby mode.
On the low to high transition of tone enable, data is latched into the
device and selected the standard DTMF signals.
The N-channel open drain output provides a MUTE output during tone
generation.
14-SOP-225B
FEATURES
·
·
·
Direct interface with microprocessor
Generates 16 standard tones
Uses inexpensive TV crystal or ceramic resonator
(3.579545MHz)
ORDERING INFORMATION
·
·
·
·
Very low total harmonic distortion
Low power standby mode
Binary data inputs with latches
Wide Operating Voltage : 2.5 ~ 8.0V
Device
Package
Operating Temperature
KS58015N 14-DIP-300
- 30°C ~ + 70°C
KS58015D 14-SOP-225B
BLOCK DIAGRAM
VDD
MUTE
OSC IN
OSC
MUTE LOGIC
OSC OUT
TEN
ST
CONTROL
CIRCUIT
ROW & COLUMN
TONE COUNTER
GS
4
D0
D1
DATA
D/A
LATCH &
DECODER
CONVERTER &
MIXING
D2
D3
TONE OUT
SS
V
Fig.1
KS58015
DTMF DIALER FOR BINARY DATA-IN
PIN CONFIGURATION
1
2
3
4
5
6
7
14
VDD
TONE OUT
13
TEN
NC
12
ST
D3
KS58015
11
10
9
GS
VSS
D2
D1
D0
OSC IN
8
OSC OUT
MUTE
Fig. 2
PIN DESCRIPTION
Pin No
Symbol
Descriptions
1
VDD
Positive supply input
Tone enable input. An internal pull-up resistor is in a chip. When this pin connects to
logic ‘low’, the oscillator is inhibited and the tone generators and output transistor are
turned off. A low to high transition on this pin latches in data from D0 ~ D3, and tone
generation continues until this pin is connected ‘low’ again.
2
TEN
Single tone enable. An internal pull-up resistor is in a chip. When this pin connects
to logic ‘low’, the device is in a single tone mode. For normal operation, connects this
pin to VDD or open-circuit.
3
4
ST
Group selection input. This pin is used to select the high group or low group fre-
quency, when the device is in single tone mode. An internal pull-up resistor is in a
GS
chip. When this pin connects to VDD or open, the high group will be generated, and when
connects to VSS, the low group will be generated.
5
6
7
VSS
Negative supply input
OSC IN
OSC OUT
Oscillator input
Oscillator output
N-channel open drain output.
8
MUTE
This pin is a logic high state, when the tone enable pin is a high state.
This pin goes a logic low state, when the tone enable pin is a low state.
DATA-INPUTS. These are the inputs for binary-coded data, which is latched in on
the rising edge of the tone enable signal.
9, 10,
11, 12
13
D0, D1,
D2, D3
N.C
No connection.
This output is the open emitter of a NPN transistor. When an external load resistor
is connected from this pin to VSS, the tone generates on the tone enable pin = ‘High’.
14
Tone out
KS58015
DTMF DIALER FOR BINARY DATA-IN
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Value
Unit
Supply Voltage
MUTE Voltage
Input Voltage
Power Dissipation
Operating Temperature
Storage Temperature
VDD
VI (MUTE)
VI
PD
TOPR
TSTG
9
9
V
V
V
mW
°C
°C
VDD + 0.3 ~ VSS - 0.3
500
- 30 ~ + 70
- 55 ~ + 125
ELECTRICAL CHARACTERISTICS
(VSS = 0V, 2V<VDD<8V, fOSC = 3.579545MHz, Ta = 25°C, unless otherwise noted)
Characteristic
Operating Voltage Range
Operating Current
Symbol
VDD
Test Conditions
Min
Typ
Max
Unit
V
2.0
8.0
1.5
IDD
VDD = 3.0V, MUTE Open
RL = 10K, D0~D3 open, VDD = 3.0V
DI0 ~ DI3, TEN
mA
mA
KW
V
Standby Current
ISB
50
100
Input Pull-up Resistance
RI (PULL)
VIL
100
VSS
0.8VDD
0.5
0.2VDD
VDD
Input Voltage
DI0 ~ DI3, TEN
VIH
V
IOL (MUTE)
IOH (MUTE)
VO (TONE)
dBCR
VDD = 3V, VO = 0.5, TEN = LOW
VDD = 3V, VO = VDD, TEN = HIGH
VDD = 3V, RL = 5KW, Row Tone
VDD = 3V, RL = 5 KW
1.5
1
mA
mA
dBV
dB
dB
mS
nS
nS
nS
Output Current (MUTE)
2
-11
3
Tone Output Level
Ratio of Column to Row
THD (Dual Tone)
Oscillator Start-up Time
Data Set-up Time
Data Hold Time
-14
1
2
4
THD
-20
1MHz Bandwidth, VDD = 5V, RL =5KW
90% Amplitudes, VDD = 3.0V
VDD = 3.0V
tST (OSC)
tSU (DATA)
tH (DATA)
tW (DATA)
200
200
600
VDD = 3.0V
Data Duration
VDD = 3.0V
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
Tone Group
Standard DTMF (Hz)
Tone Output Actual Frequency
% Deviation from Standard
ROW 1
ROW 2
ROW 3
697
770
852
699.13
766.17
845.43
+ 0.31
- 0.50
- 0.54
+ 0.74
+ 0.57
- 0.33
- 0.35
ROW 4
941
947.97
COLUMN 1
COLUMN 2
COLUMN 3
COLUMN 4
1209
1336
1477
1633
1215.89
1331.67
1471.85
1645.01
+ 0.75
KS58015
DTMF DIALER FOR BINARY DATA-IN
TABLE 2. FUNCTION TABLE
Key Board
Data Input
Tone Output
Equivalent
D3
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
D2
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
D1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
fL (Hz)
697
697
697
770
770
770
852
852
852
941
941
941
697
770
852
941
fH (Hz)
1209
1336
1477
1209
1336
1477
1209
1336
1477
1336
1209
1477
1633
1633
1633
1633
1
2
3
4
5
6
7
8
9
0
*
#
A
B
C
D
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