MICRF221 データシートの表示（PDF） - Micrel
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MICRF221 Datasheet PDF : 26 Pages
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Micrel Inc.
Absolute Maximum Ratings(1)
Supply Voltage (Vdd) ................................................. +5V
Input Voltage. ............................................................. +5V
Junction Temperature ...........................................+150ºC
Lead Temperature (soldering, 10sec.) ....................300°C
Storage Temperature (Ts)...................... -65ºC to +150°C
Maximum Receiver Input Power ......................... +10dBm
EDS Rating(3).....................................................2KV HBM
MICRF221
Operating Ratings(2)
Supply voltage (Vdd)............................. +3.0V to +3.6V
Ambient Temperature (TA) ................. –40°C to +105°C
Input Voltage (Vin) ................................................. 3.6V
Maximum Input RF Power................................. -20dBm
Receive Modulation Duty Cycle(6) .................... 20~80%
Electrical Characteristics
Specifications apply for VDD=3.3V, VSS = 0V, CAGC = 4.7uF, CTH = 0.1uF, fRX = 850 MHz to 950 MHz unless otherwise noted.
Bold values indicate –40°C - TA - 105°C.
Symbol Parameter
Condition
Min
Typ
Max
Iss
MICRF221 Operating
Continuous Operation, fRX = 868 MHz
9.0
Supply Current
Continuous Operation, fRX = 915 MHz
9.5
Ishut
Shut down Current
50
Units
mA
nA
RF/IF Section
Symbol Parameter
Condition
Image Rejection
1st IF Center Frequency
fRX = 868 MHz
fRX = 915 MHz
Receiver Sensitivity @
1kbps(4)
fRX = 868 MHz (matched to 50Ω)
fRX = 915 MHz (matched to 50Ω)
IF Bandwidth
fRX = 868 MHz
fRX = 915 MHz
Antenna Input
Impedance
fRX = 868 MHz
fRX = 915 MHz
Receive Modulation Duty
Cycle
Spurious Reverse
Isolation(5)
AGC Attack / Decay
Ratio
AGC pin leakage current
Note 6
ANT pin, RSC = 50 Ω
tATTACK / tDECAY
TA = 25ºC
TA = +105ºC
Min
Typ
Max Units
20
dB
1.219
1.285
MHz
-109
dBm
-109
360
kHz
380
9.4 – j72
Ω
9 – j67
20
80
%
-78
dBm
0.1
+/-2
nA
+/-800
October 2008
3
M9999-100108
(408) 955-1690
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