SILAN SC9200A, SC9200B Datasheet
Silan
Semiconductors
DTMF GENERATORS
SC9200A/B
DESCRIPTION
The SC9200A/B tone generators are designed for µC interfaces.
They can be instructed by a µC to generate 16 dual tones and 8
single tones from the DTMF pin. The SC9200A provides a serial
mode whereas the SC9200B contains a selectable serial/parallel
mode interface for various applications such as security systems,
home automation, remote control through telephone lines
communication system, etc.
FEATURES
* Operating voltage: 2.0V~5.5V
* Serial mode for the SC9200A
* Serial/parallel mode for the SC9200B
* Low standby current
* Low total harmonic distortion
* 3.58MHz crystal or ceramic resonator
SELECTION TABLE
Function
Part No.
SC9200A 2V-5.5V 3.58MHz Serial 8 DIP/SOP
SC9200B 2V-5.5V 3.58MHz Serial/Parallel 14 DIP/SOP
Operating Voltage OSC Frequency Interface Package
PIN CONFIGURATIONS
DIP-8
14
13
12
11
10
V
DD
DTMF
DATA
CLKV
S/P
9
D3
D2
CE
X2
X1
CE
1
X2
1
SC9200A
2
3
4
SS
V
5
DD
6
DTMF
7
DATA
8
CLKV
2
X1
3
SS
4
NC
5
6
D0
D1
7 8
SC9200B
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
1
Rev: 1.0 2001.02.02
Silan
Semiconductors
BLOCK DIAGRAM
SC9200A/B
X1
X2
DATA
CLK
3.58MHz
Crystal/Resonator
Oscillator
SerialData
Input Circuit
ABSOLUTE MAXIMUM RATINGS
Characteristic Symbol Value Unit
Supply Voltage V
Input Voltage V
Storage Temperature T
Operating Temperature T
SS
IN
STG
OPR
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Control
Circuit
CE
2
DTMF
Generator
ParallelData
Input Circuit
D3 D2 D1 D0
-0.3~6 V
VSS-0.3~VDD+0.3 V
-50~125
-20~75
DTMF
Rev: 1.0 2001.02.02
°C
°C
Silan
Semiconductors
ELECTRICAL CHARACTERISTICS
Parameter Symbol
Operating Voltage V
Operating Current I
Low Input Voltage V
High Input Voltage V
Standby Current I
Pull-high Resistance R
DTMF Output Delay Time
(Parallel Mode)
DTMF Output DC Level V
DTMF Sink Current I
DTMF Output AC Level V
Column Pre-emphasis A
DTMF Output Load R
Tone Signal Distortion t
Clock Input Rate (Serial Mode) f
Oscillator Starting Time
CE
is low)
(When
System Frequency f
DD
DD
IL
IH
STB
t
DE
TDC
TOL
TAC
CR
HD
CLK
t
UP
OSC
V
2.5V
5.0V
2.5V -- -- 1
5.0V
P
L
2.5V 120 180 270
5.0V
2V~5.5V DTMF Output 0.45V
2.5V V
2.5V
2.5V Row group=0dB 1 2 3 dB
2.5V
2.5V
5.0V
SC9200A/B
Test Conditions
Conditions
DD
--
-- -- V
-- -- 0.8V
5V -- -- tUP+6 tUP+8 ms
-- -- -- 100 500 kHz
-- Crystal=3.5795MHz 3.5759 3.5759 3.5831 MHz
Serial 1.8
Parallel 2.0
=V
,
DD
/PS
D0~D3=V
CE
/PS
No load
V
OL
DTMF
Row group, R
≤-23dB
t
HD
=5kΩ
R
L
Thetimefrom
falling edge to normal
oscillator operation
,
SS
=V
, No load
SS
,CE=VDD,
=0V
=0.5V -0.1 -- -- mA
=5kΩ
L
CE
Min Typ Max Unit
-- 5.5 V
-- 240 2500
-- 950 3000
DD
DD
-- 0.2V
-- V
-- 0.75V
SS
-- -- 2
45 68 100
0.12 0.15 0.18 Vrms
5----
-- -30 -23 dB
-- -- 10 ms
µA
DD
DD
µA
k
DD
kΩ
V
V
Ω
V
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
3
Rev: 1.0 2001.02.02
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