KSI-L005-000
1
S567P
TONE DECODER
Description
The S567 is general purpose tone decoders designed to provide a saturated transistor
switch to ground when an input signal is present within the passband.
Features
Logic compatible output with 100mA current sinking capability
20 to 1 frequency range with an external resistor
Bandwidth adjustable from 0 to 14%
High rejection of out of band signals and noise.
Immunity to false signals
Highly stable center frequency
Center frequency adjustable from 0.01Hz to 500KHz
Applications
Touch tone decoding
Precision oscillator
Frequency monitoring and control
Wide band FSK demodulation
Ultrasonic controls
carrier current remote controls
Communications paging decoders
Ordering
Information
Type NO.
Marking
Package Code
S567P
S567P
DIP-8
Outline Dimensions unit :
mm
S
S
e
e
m
m
i
i
c
c
o
o
n
n
d
d
u
u
c
c
t
t
o
o
r
r
Block Diagram
KSI-L005-000
2
S567P
Absolute Maximum Ratings
Characteristic
Symbol
Ratings
Unit
Supply Voltage
V
IN
10
V
Power Dissipation
P
D
300
mW
V
8
-
15
V
V
3
-
-10
V
V
3
-
V
8
+0.5
V
Storage Temperature
T
stg
-55 ~+150
C
Electrical Characteristics
( AC Test Circuit, Ta=25, V
CC
=5V)
Characteristic
Symbol
Test Condition
Min.
Typ.
Max.
Unit
Power Supply Voltage Range
V
CC
-
4.75
5
9
V
Power Supply Current Quiescent
I
CCQ
R
L
=20K
-
6
8
mA
Power Supply Current Activated
I
CC
R
L
=20K
-
11
13
mA
Input Resistance
R
IN
-
15
20
25
K
Smallest Detectable Input Voltage
V
IN 1
I
L
=100
mA, f
=f
O
-
20
25
mV
rms
Largest No Output Input Voltage
V
IN 2
I
C
=100
mA, f
=f
O
10
15
-
mV
rms
Largest Simultaneous Outband
Signal to Inband Signal Ratio
S
I
/S
O
-
-
6
-
dB
Minimum Input Signal to
Wideband Noise Ratio
S/N
B
n
=
140KHz
-
-6
-
dB
Largest Detection Bandwith
B.W
-
10
14
18
%of fo
Largest Detection Bandwith Skew
B.W
S
-
-
2
3
%of fo
Largest Detection Bandwith
Variation With Temperature
B.W
T
-
-
0.1
0.25
%1
Largest Detection Bandwith
Variation With Supply Voltage
B.W
V
4.75V ~ 6.75V
-
1
2
%/V
Highest Center Frequency
f
O-H
-
100
500
-
KHz
0< T
a
<
70
-
3560
-
ppm/
Center Frequency Stability
f
O-S
-55< T
a
<+125
-
35140
-
ppm/
Center Frequency Shift with
Supply Voltage
f
O-V
4.75V ~ 6.75V
,-
0.5
2
%/V
Fastest ON-OFF Cycling Rate
CR
ON-OFF
-
-
f
O
/20
-
-
Output Leakage Current
I
LEAK
V
8
=
15V
-
0.01
25
uA
V
IN
=25mV
rms
,
I
8
=
30mA
-
0.2
0.4
V
Output Saturation Voltage
V
SAT
V
IN
=25mV
rms
,
I
8
=100mA
-
0.6
1
V
Output Fall Time
t
F
-
-
30
-
ns
Output Rise Time
t
R
-
-
150
-
ns
KSI-L005-000
3
S567P
1. I
CC
vs Vcc
Electrical Characteristic Curves
2. BW - f
O
TEST Circuit
Applications
1. Oscillator with Quadrature Output
2. Oscillator with Double Frequency Output
3. Precision Oscillator to switch 100mA Loads
The center frequency of the tone decoder is
equal to the free running frequency of the VCO.
This is given by f
o
= 1/(1.1R
1
C
1
)
The bandwidth of the filter may be found from
the approximation
B.W =1070(V
IN
/ f
0
C
2
) in % of f
O
Where
V
IN
= Input voltage(Volts
rms
), V
IN
200mV
C
2
= Capacitance at pin2(uF)
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