SM8222A/B
AC Electrical Characteristics
FSK decoder
s
SM8222A
V
DD
= 3.0 ± 0.3 V, GND = 0 V, f
CLK
= 3.579545 MHz, T
a
=
−
20 to 85
°
C
P arameter
Input sensitivity
60 Hz
Bandpass filter frequency response
(relative gain for 1700 Hz sine wave
input)
1200 Hz
2200 Hz
4000 Hz
Symbol
Condition
Carrier detect sensitivity
No-carrier detect sensitivity
Oscillator frequency
s
CD
ON
CD
OFF
f
CLK
ina
–
≥
10,000 Hz
–
−
54
–
−
48
−
51
−
55
−
0.1%
3.579545
Rating
typ
−
48
−
80
−
1
0
−
43
−
54
−
48
−51
3.579545
Condition
min
–
–
–
–
–
–
–
−55
−0.1%
60 Hz
1200 Hz
2200 Hz
4000 Hz
≥
10,000 Hz
SM8222B
V
DD
= 5.0 ± 0.5 V, GND = 0 V, f
CLK
= 3.579545 MHz, T
a
=
−
20 to 85
°
C
P arameter
Input sensitivity
lim
Symbol
CD
ON
CD
OFF
f
CLK
Bandpass filter frequency response
(relative gain for 1700 Hz sine wave
input)
Carrier detect sensitivity
No-carrier detect sensitivity
Oscillator frequency
pre
ry
Unit
min
–
typ
max
−
48
CD
ON
–
dBm
–
−
80
−
1
0
–
–
–
–
dB
−
43
–
–
dBm
dBm
MHz
−
44
–
+0.1%
Unit
max
CD
ON
–
–
–
–
–
−
44
–
+0.1%
dBm
dBm
MHz
dB
dBm
NIPPON PRECISION CIRCUITS—6
Rating
NPC [ NIPPON PRECISION CIRCUITS INC ]
