Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
2.TONE FREQUENCY
Tone
Output Frequency (Hz)
Specified Actual
%Error
Name
R1
697
770
699
766
+0.29%
-0.52%
-0.59%
+0.74%
+0.50%
-0. 30%
-0. 34%
R2
R3
852
847
R4
C1
C2
C3
941
948
1209
1336
1477
1215
1332
1472
% Error does not contain the crystal frequency drift.
3. DIALING SPECIFICATION SELECTION
C1
C2
C3
C4
R1
RK21
RK31
RK41
By means of adding resistors across keyboard matrix
pins, various dialing specifications can be selected. The
allowable option resistor connections are shown right.
R2
R3
R4
R
R
R
K12
K13
K14
All the resistors are 330kΩ. The resistor option functions and the default specifications (without option resistors)
are listed below.
Option
Resistor
RK12
Option Function
Default (No Resistor)
Make/Break Ratio Selection
40:60
RK13
Flash Function And Flash Time Flash = control function
Selection
Flash time = 600ms
RK14
RK21
Pause & PꢀT Duration Selection
Pulse Number Selection Or IDD
Lock Selection
TP = 3.6s , TPꢀT = 3.6s
RK31
N
or Keyboard operated
lock
RK41
4. M/B RATIO SELECTION TABLE
RK13
No
M/B Ratio(%)
40:60
Yes
33.3:66.6
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
12
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
