SM8220S 查看數據表（PDF） - Nippon Precision Circuits
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SM8220S Datasheet PDF : 8 Pages
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AC CHARACTERISTICS
SM8220/SM8221
(VDD= 5.0V, GND= 0V, fCLK= 3.579545MHz, Ta= −20 to 85 ˚C, 0dBm= 0.7746Vrms @ 600Ω unless otherwise noted)
Rating
Parameter
Symbol
Condition
MIN
TYP
MAX
Unit
Input Sensitivity
TIP, RING pin
−48
dBm
TIP, RING pin
VDD= 5V
−15
dBm
Input Level
VDD= 3V
−18
Band Pass Filter Frequency Response
60Hz
−80
dB
(relative to 1700 Hz @ −34 dBm
1200 Hz
−1
input level)
2200Hz
0
4000Hz
−43
≥10000Hz
−54
Carrier Detect ON Sensitivity
CDON
CDET pin
−48
−44
dBm
Carrier Detect OFF Sensitivity
CDOFF
CDET pin
−55
−51
dBm
Oscillator Frequency
fCLK
−0.1% 3.579545 +0.1% MHz
TYPICAL BAND-PASS FILTER FREQUENCY RESPONSE
(Relative to 1700 Hz @ −34 dBm input level)
20
0
-20
-40
-60
-80
-100
0
1000
2000
3000
4000
Frequency (Hz)
SWITCHING CHARACTERISTICS
(VDD= 5.0V, GND= 0V, fCLK= 3.579545MHz, Ta= 25 ˚C, CL= 50pF unless otherwise noted)
Rating
Parameter
Power Down Low to
Symbol
tDOSC
Condition
MIN
TYP
MAX
Unit
5
ms
Oscillator Start Up
Power Down Low to
tSUPD
10
ms
FSK Data Detect
Carrier Detect Acquisition Time tDAQ
End of Data to Carrier Detect High tDCH
10
ms
10
ms
NIPPON PRECISION CIRCUITS-5
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