SC9200B [SILAN]
DTMF GENERATOR WITH MICROPROCESSOR; DTMF发生器微处理器
| 型号： | SC9200B |
| 厂家： | 
SILAN MICROELECTRONICS JOINT-STOCK |
| 描述： | DTMF GENERATOR WITH MICROPROCESSOR |
| 文件： | 总9页 (文件大小：182K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SC9200
DTMF GENERATOR WITH MICRO•PROCESSOR INTERFACE
DESCRIPTION
The SC9200 tone generators are designed formC interfaces. They can
be instructed by amC to generate 16 dual tones and 8 single tones fro
the DTMF pin. The SC9200A/AS provides a serial mode whereas
SOP•8
DIP•8
SC9200B/BS contains a elsectable serial/parallel mode interface
various applications
FEATURES
* Operating voltage: 2.0V~5.5V
* Serial mode for the SC9200A/AS
* Serial/parallel mode for the SC9200B/BS
* Low standby current
SOP•14
DIP•14
* Low total harmonic distortion
* 3.58MHz crystal or ceramic resonator
ORDERING INFORMATION
Part No.
SC9200A
SC9200B
SC9200AS
SC9200BS
Package
APPLICATIONS
DIP•8•300•2.54
DIP•14•300•2.54
SOP•8•225•1.27
SOP•14•225•1.27
* Security systems
* Home automation
* Remote control through telephone lines
* Communication system, etc.
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 1 of 10
SC9200
ABSOLUTE MAXIMUM RATING
Characteristic
Supply Voltage
Symbol
Ratings
Unit
V
V
SS
•0.3~6
Input Voltage
V
V
SS
•0.3~V +0.3
V
IN
stg
opr
DD
Storage Temperature
Operating Temperature
T
•50~125
•20~75
°C
°C
T
ELECTRICAL CHARACTERISTICS
Test Conditions
Characteristics
Symbol
Min.
Typ.
••
Max.
Unit
V
Conditions
Serial
DD
1.8
2.0
Operating Voltage
V
DD
••
5.5
V
Parallel
2.5V
5.0V
=V , D0~D3=V
,
DD
SS
S/P
CE
••
240
2500
3000
Operating Current
I
mA
DD
=V , No load
SS
••
950
••
Low Input Voltage
High Input Voltage
V
••
••
••
V
SS
0.2V
DD
V
V
IL
V
••
0.8V
••
••
V
DD
IH
DD
,
=V
,
DD
2.5V
5.0V
2.5V
5.0V
CE
••
1
S/P
Standby Current
I
mA
kW
ms
STB
••
••
2
No load
V =0V
OL
120
45
180
68
270
100
Pull•high Resistance
R
P
DTMF Output Delay Time
(Parallel Mode)
t
5V
••
••
t
+6
t
+8
UP
DE
UP
DTMF Output DC Level
DTMF Sink Current
DTMF Output AC Level
Column Pre•emphasis
DTMF Output Load
Tone Signal Distortion
Clock Input Rate (Seri
Mode)
V
2V~5.5V DTMF Output
0.45V
••
0.75V
••
V
TDC
DD
DD
I
2.5V
2.5V
2.5V
2.5V
2.5V
V
=0.5V
•0.1
0.12
1
••
0.15
2
mA
TOL
DTMF
V
Row group, =R5kW
0.18
3
V
rms
TAC
L
ACR
Row group=0dB
dB
kW
dB
R
t£•23dB
HD
5
••
••
L
tHD
=R5kW
••
•30
•23
L
f
••
••
The time from
••
100
500
kHz
CLK
CE
Oscillator Starting Time
t
5.0V
••
••
••
10
ms
UP
falling edge to normal
oscillator operation
Crystal=3.5795MHz
(When
is low)
CE
System Frequency
f
3.5759 3.5759 3.5831
MHz
OSC
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 2 of 10
SC9200
PIN CONFIGURATION
PIN DESCRIPTION
Pin NO.
Pin Name
Description
DIP•8
DIP•14
SOP•8
SOP•14
CE
1
2
1
2
Chip enable, active low.
X2
The system oscillator consists of an inverter, a bias resistor, and the
required load capacitor on chip. The oscillator function can be
implemented by Connect a standard 3.579545MHz crystal to the X1 and
X2 terminals.
3
4
3
X1
4
5
V
SS
Negative power supply.
NC
No connection.
Data inputs for the parallel mode.
When the IC is operating in the serial mode, the data input terminals
(D0~D3) are included with a pull•high resistor. When the IC is operating
in the parallel mode, these pins become floating.
Operation mode selection input
6~9
10
D0~D3
=”H”: Parallel mode
=”L”: Serial mode
S/P
S/P
S/P
Data synchronous clock input for the serial mode. When the IC is
operating in the parallel mode, the input terminal (CLK) is included with
a pull•high resistor. When the IC is operating in the serial mode, this pin
becomes floating.
5
6
11
CLK
Data input terminal for the serial mode. When the IC is operating in the
parallel mode, the input terminal (DATA) is included with a pull•high
resistor. When the IC is operating in the serial mode, this pin becomes
floating.
12
DATA
DTMF
7
8
13
14
Output terminal of the DTMF signal.
V
DD
Positive power supply, 2.0V~5.5V for normal operation.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 3 of 10
SC9200
FUNCTIONAL DESCRIPTION
The SC9200 are DTMF generators for mC interfaces. They are controlled by a mC in the serial mode.
1. Serial mode (SC9200)
The SC9200 employ a data input, a 5•bit code, and a synchronous clock to transmit a DTMF signal. The
relationship between the digital codes and the tone output frequency is shown in Table 1 as for the control timing
diagram, refer to Figure 1.
Table 1: Digits vs. input data vs. tone output frequency (serial mode)
Digit
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
D3
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
D2
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
1
1
1
D1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
1
0
0
1
1
1
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
1
Tone Output Frequency (Hz)
697+1209
697+1336
697+1477
770+1209
770+1336
770+1477
852+1209
852+1336
852+1477
941+1336
941+1209
941+1477
697+1633
770+1633
852+1633
941+1633
697
1
2
3
4
5
6
7
8
9
0
*
#
A
B
C
D
••
••
770
••
852
••
941
••
1209
••
1336
••
••
1477
1633
DTMF OFF
••
*Notes: The codes not listed in Table 1 are not used D4 is MSB.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 4 of 10
SC9200
Figure 1
2. Parallel mode (SC9200B/BS)
The SC9200B/BS provides four data inputs D0~D3 to generate their corresponding DTMF signals. The
S/P
has to be connected high to select the parallel operation mode. Then the input data codes should be
determined. Finally, the is connected low to transmit the DTMF signal from the DTMF pin.
CE
The TDE time (about 6ms) will be delayed from the
falling edge to the DTMF signal output.
CE
The relationship between the digital codes and the tone output frequency is illustrated in Table 2. As for the
control timing diagram, see Fiigure 2.
When the system is operating in the parallel mode, D0~D3 are all in the floating state. Thus, these data
input pins should not float.
Table 2: Digits vs. input data vs. tone output frequency (parallel mode)
Digit
1
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
Tone Output Frequency
697+1209
697+1336
697+1477
770+1209
770+1336
770+1477
852+1209
852+1336
852+1477
941+1336
941+1209
941+1477
697+1633
770+1633
852+1633
941+1633
2
3
4
5
6
7
8
9
0
*
#
A
B
C
D
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 5 of 10
SC9200
Figure 1
APPLICATION CIRCUIT
Serial mode
Serial/parallel mode
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 6 of 10
SC9200
PACKAGE OUTLINE
DIP•8•300•2.54
UNIT: mm
2.54
1.52
15 degree
+0.4
•0.3
9.40
0.5MIN
+0.35
•0.30
0.89
0.46
DIP•14•300•2.54
UNIT: mm
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 7 of 10
SC9200
PACKAGE OUTLINE (Continued)
SOP•8•225•1.27
UNIT: mm
SOP•14•225•1.27
UNIT: mm
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 8 of 10
SC9200
HANDLING MOS DEVICES:
Electrostatic charges can exist in many things. All of our MOS devices are internally protected against
electrostatic discharge but they can be damaged if the following precautions are not taken:
· Persons at a work bench should be earthed via a wrist strap.
· Equipment cases should be earthed.
· All tools used during assembly, including soldering tools and solder baths, must be earthed.
· MOS devices should be packed for dispatch in antistatic/conductive containers.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 9 of 10
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